View Filing Data

Total other income and expenses

127,073

100,983

127,095

Other Income and Expenses

Interest expense

(24,586)

(23,433)

(22,582)

Interest income

3,249

3,578

1,790

Other, net

3,276

760

2,038

(18,061)

(19,095)

(18,754)

Income before income tax expense

109,012

81,888

108,341

Income tax expense

24,670

18,017

38,974

Net Income

$ 84,342

$ 63,871

$ 69,367

Basic Earnings Per Common Share

Weighted Average Number of Shares Outstanding (in shares)

36,814

36,733

36,638

Earnings Per Share, Basic

$ 2.28

$ 1.73

$ 1.88

Fully Diluted Earnings Per Share

Weighted Average Number of Diluted Shares (in shares)

36,964

36,936

36,844

Earnings Per Share, Diluted

$ 2.28

$ 1.72

$ 1.88

Dividends Declared Per Common Share (in dollars per share)

$ 1.160

$ 1.060

$ 0.994

Power purchased for pumping

Operating Revenues

Water

$ 319,830

$ 295,258

$ 306,332

Electric

39,548

34,350

33,969

Total operating revenues

359,378

329,608

340,301

Operating Expenses

Water purchased

72,289

68,904

68,302

8,660

8,971

8,518

Groundwater production assessment

18,962

19,440

18,638

Power purchased for resale

11,796

11,590

10,720

Supply cost balancing accounts

(7,026)

(15,649)

(17,939)

Other operation

26,336

25,334

24,877

Administrative and general

59,905

62,156

62,408

Depreciation and amortization

32,441

38,395

37,852

Maintenance

12,843

13,104

12,970

Property and other taxes

18,168

16,809

16,402

Gain on sale of assets

(88)

(8)

(8,318)

Total operating expenses

254,286

249,046

234,430

Total other income and expenses

105,092

80,562

105,871

Other Income and Expenses

Interest expense

(23,399)

(22,621)

(22,055)

Interest income

1,867

2,890

1,766

Other, net

3,280

784

2,234

(18,252)

(18,947)

(18,055)

Income before income tax expense

86,840

61,615

87,816

Income tax expense

20,177

13,603

34,059

Net Income

$ 66,663

$ 48,012

$ 53,757

[1]

CONSOLIDATED STATEMENTS OF CHANGES IN COMMON SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	GSWC	Common Stock [Member]	Common Stock [Member] GSWC	Earnings Reinvested in the Business	Earnings Reinvested in the Business GSWC
Common stock, shares outstanding			36,571,000	146
Balances at Dec. 31, 2016	$ 494,297	$ 446,770	$ 247,232	$ 240,482	$ 247,065	$ 206,288
Add:
Net Income	$ 69,367	53,757			69,367	53,757
Stock Issued During Period, Shares, New Issues	56,498		110,000
Exercise of stock options and other issuance of Common Shares	$ 909		$ 909
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	1,789	1,527	1,789	1,527
Dividend equivalent rights on stock-based awards not paid in cash	194	172	194	172
Deduct:
Dividends on Common Shares	36,417	27,680			36,417	27,680
Dividend equivalent rights on stock-based awards	194	172			194	172
Balances at Dec. 31, 2017	529,945	474,374	$ 250,124	$ 242,181	279,821	232,193
Common stock, shares outstanding			36,681,000	146
Add:
Net Income	$ 63,871	48,012			63,871	48,012
Stock Issued During Period, Shares, New Issues	44,906		77,000	19
Exercise of stock options and other issuance of Common Shares	$ 546		$ 546
Stock Issued During Period, Value, New Issues		47,500
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	2,798	2,539	2,798	$ 2,539
Dividend equivalent rights on stock-based awards not paid in cash	221	192	221	192
Deduct:
Dividends on Common Shares	38,937	68,850			38,937	68,850
Dividend equivalent rights on stock-based awards	221	192			221	192
Balances at Dec. 31, 2018	$ 558,223	$ 503,575	$ 253,689	$ 292,412	304,534	211,163
Common stock, shares outstanding	36,680,794	165	36,758,000	165
Add:
Net Income	$ 84,342	$ 66,663				66,663
Stock Issued During Period, Shares, New Issues	88,772		89,000
Exercise of stock options and other issuance of Common Shares	$ 519		$ 519
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	1,148	1,150	1,148	$ 1,150
Dividend equivalent rights on stock-based awards not paid in cash	210	192	210	192
Deduct:
Dividends on Common Shares	42,702	20,200			42,702	20,200
Dividend equivalent rights on stock-based awards	210	192			210	192
Balances at Dec. 31, 2019	$ 601,530	$ 551,188	$ 255,566	$ 293,754	$ 345,964	$ 257,434
Common stock, shares outstanding	36,846,614	165	36,847,000	165

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flows From Operating Activities:
Net Income	$ 84,342	$ 63,871	$ 69,367
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	35,713	40,663	39,273
Provision for doubtful accounts	608	841	989
Deferred income taxes and investment tax credits	6,623	(5,773)	12,153
Stock-based compensation expense	2,517	3,851	2,885
Gain on sale of assets	(253)	(85)	(8,318)
(Gain) loss on investments held in a trust	(3,580)	558	(1,743)
Other - net	526	97	218
Changes in assets and liabilities:
Accounts receivable - customers	1,882	1,882	(7,671)
Unbilled revenue-receivable	(5,515)	2,823	(2,020)
Other accounts receivable	214	5,151	(1,671)
Receivable from the U.S. government	(1,144)	20,976	(4,742)
Materials and supplies	(654)	(980)	(501)
Prepayments and other assets	3,978	(519)	(1,641)
Contract Assets	3,979	5,941	0
Costs and estimated earnings in excess of billings on contracts	0	0	2,881
Regulatory Assets / Liabilities	(11,597)	33,834	24,626
Accounts payable	(249)	1,282	4,358
Income taxes receivable / payable	(3,786)	2,708	13,206
Contract liabilities/ Billings in excess of cost of estimated earnings	3,637	3,619	1,648
Accrued pension and other post-retirement benefits	1,994	(1,086)	(878)
Other liabilities	(4,659)	(928)	(1,589)
Cash Flows From Operating Activities	116,864	136,774	144,552
Cash Flows From Investing Activities:
Capital expenditures	(151,940)	(126,561)	(113,126)
Proceeds from sale of assets	169	72	34,324
Other investments	1,424	1,553	1,229
Net Cash Provided by (Used in) Investing Activities	(153,195)	(128,042)	(80,031)
Cash Flows From Financing Activities:
Proceeds from stock option exercises	519	546	909
Receipt of advances for and contributions in aid of construction	10,171	5,551	7,275
Refunds on advances for construction	5,005	3,886	3,889
Retirement or repayments of long-term debt	(40,325)	(326)	(329)
Increase (Decrease) in Notes Payable, Current	109,500	36,500	(31,000)
Dividends paid	(42,702)	(38,937)	(36,417)
Other	(1,634)	(1,253)	(1,292)
Net Cash Provided by (Used in) Financing Activities	30,524	(1,805)	(64,743)
Net change in cash and cash equivalents	(5,807)	6,927	(222)
Cash and cash equivalents, beginning of period	7,141	214	436
Cash and cash equivalents, end of year	1,334	7,141	214
GSWC
Cash Flows From Operating Activities:
Net Income	66,663	48,012	53,757
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	32,757	38,633	38,094
Provision for doubtful accounts	606	850	816
Deferred income taxes and investment tax credits	5,081	(6,817)	13,970
Stock-based compensation expense	2,253	3,397	2,420
Gain on sale of assets	(88)	(8)	(8,318)
(Gain) loss on investments held in a trust	(3,580)	558	(1,743)
Other - net	58	27	130
Changes in assets and liabilities:
Accounts receivable - customers	1,882	1,882	(7,671)
Unbilled revenue-receivable	(744)	960	(1,152)
Other accounts receivable	311	4,140	(544)
Materials and supplies	(123)	(751)	(322)
Prepayments and other assets	4,230	(154)	(1,450)
Regulatory Assets / Liabilities	(11,597)	33,834	24,626
Accounts payable	1,558	(1,907)	4,927
Inter-company receivable / payable	1,056	(47)	(390)
Income taxes receivable / payable	(2,110)	973	15,266
Accrued pension and other post-retirement benefits	1,994	(1,086)	(878)
Other liabilities	(3,579)	(2,057)	(1,930)
Cash Flows From Operating Activities	96,628	120,439	129,608
Cash Flows From Investing Activities:
Capital expenditures	(142,852)	(116,354)	(110,487)
Proceeds from sale of assets	88	9	34,324
Payments to Acquire Investments	1,424	1,553	1,229
Net Cash Provided by (Used in) Investing Activities	(144,188)	(117,898)	(77,392)
Cash Flows From Financing Activities:
Proceeds from issuance of Common Shares to Parent	0	47,500	0
Receipt of advances for and contributions in aid of construction	10,171	5,551	7,275
Refunds on advances for construction	5,005	3,886	3,889
Retirement or repayments of long-term debt	(40,325)	(326)	(329)
Net change in inter-company borrowings	(100,500)	(22,500)	26,500
Dividends paid	(20,200)	(68,850)	(27,680)
Other	(1,367)	(1,057)	(1,088)
Net Cash Provided by (Used in) Financing Activities	43,774	1,432	(52,211)
Net change in cash and cash equivalents	(3,786)	3,973	5
Cash and cash equivalents, beginning of period	4,187	214	209
Cash and cash equivalents, end of year	$ 401	$ 4,187	$ 214

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Significant Accounting Policies [Text Block]

Summary of Significant Accounting Policies

Nature of Operations: American States Water Company (“AWR”) is the parent company of Golden State Water Company (“GSWC”) and American States Utility Services, Inc. (“ASUS”) (and its wholly owned subsidiaries, Fort Bliss Water Services Company (“FBWS”), Terrapin Utility Services, Inc. (“TUS”), Old Dominion Utility Services, Inc. (“ODUS”), Palmetto State Utility Services, Inc. (“PSUS”), Old North Utility Services, Inc. (“ONUS”), Emerald Coast Utility Services, Inc. (“ECUS”), and Fort Riley Utility Services, Inc. ("FRUS")). AWR and its subsidiaries may be collectively referred to as “Registrant” or “the Company.” The subsidiaries of ASUS are collectively referred to as the “Military Utility Privatization Subsidiaries.” AWR, through its wholly owned subsidiaries, serves over one million people in nine states.

GSWC is a public utility engaged principally in the purchase, production, distribution and sale of water in California serving approximately 261,000 customers. GSWC also distributes electricity in several San Bernardino County mountain communities in California serving approximately 24,000 customers through its Bear Valley Electric Service (“BVES”) division. The California Public Utilities Commission (“CPUC”) regulates GSWC’s water and electric businesses in matters including properties, rates, services, facilities, and transactions by GSWC with its affiliates. GSWC filed applications with the CPUC and the Federal Energy Regulatory Commission ("FERC") in December 2018 and July 2019, respectively, to transfer the assets and liabilities of the BVES division of GSWC to Bear Valley Electric Service, Inc., a newly created separate legal entity and stand-alone subsidiary of AWR. The FERC and CPUC approved GSWC's application for reorganization in October and December of 2019, respectively. The reorganization plan is pending the completion of certain closing procedures to effectuate the transfer of assets and liabilities including, among other things, an additional FERC approval for tariffs. When completed, the reorganization plan is not expected to result in a substantive change to AWR's operations and business segments.

ASUS, through its Military Utility Privatization Subsidiaries, operates, maintains and performs construction activities (including renewal and replacement capital work) on water and/or wastewater systems at various U.S. military bases pursuant to 50-year firm fixed-price contracts. These contracts are subject to annual economic price adjustments and modifications for changes in circumstances, changes in laws and regulations and additions to the contract value for new construction of facilities at the military bases.

There is no direct regulatory oversight by the CPUC over AWR or the operations, rates or services provided by ASUS or the Military Utility Privatization Subsidiaries.

Basis of Presentation: The consolidated financial statements and notes thereto are presented in a combined report filed by two separate Registrants: AWR and GSWC. References in this report to “Registrant” are to AWR and GSWC, collectively, unless otherwise specified. Certain prior period amounts have been reclassified on the statements of cash flows to conform to current year presentation.

AWR owns all of the outstanding Common Shares of GSWC and ASUS. ASUS owns all of the outstanding Common shares of the Military Utility Privatization Subsidiaries. The consolidated financial statements of AWR include the accounts of AWR and its subsidiaries. These financial statements are prepared in conformity with accounting principles generally accepted in the United States of America. Intercompany transactions and balances have been eliminated in the AWR consolidated financial statements.

Related-Party Transactions: GSWC and ASUS provide and/or receive various support services to and from their parent, AWR, and among themselves. GSWC also allocates certain corporate office administrative and general costs to its affiliate, ASUS, using allocation factors approved by the CPUC. During the years ended December 31, 2019, 2018 and 2017, GSWC allocated to ASUS approximately $4.7 million, $4.2 million and $4.0 million, respectively, of corporate office administrative and general costs.

AWR borrows under a credit facility, which expires in May 2023, and provides funds to its subsidiaries, GSWC and ASUS, in support of their operations. The interest rate charged to GSWC and ASUS is sufficient to cover AWR’s interest expense under the credit facility. In March 2019, AWR entered into an amendment to this credit facility to increase its borrowing capacity from $150.0 million to $200.0 million. In October 2019 AWR entered into another amendment to the credit facility to temporarily increase its borrowing capacity to $225.0 million, effective until June 30, 2020. In February 2020, AWR received a binding commitment from its lender for the option to revise the temporary increase of the credit facility to $260.0 million through the end of 2020. AWR will be able to exercise this commitment and have immediate access to the additional funds when needed. On December 31, 2020, the borrowing capacity will revert to $200.0 million. As of December 31, 2019, there was $205.0 million outstanding under this facility, of which $5.0 million has been reflected as a current liability on the consolidated balance sheet of AWR. Management intends to seek additional financing in 2020 through the issuance of long-term debt at GSWC.

The CPUC requires GSWC to completely pay down all intercompany borrowings from AWR within a 24-month period. The end of the next 24-month period in which GSWC is required to completely pay down its intercompany borrowings will be in November 2020. As a result, GSWC’s intercompany borrowings of $158.8 million as of December 31, 2019 have been classified as a current liability on GSWC’s balance sheet. GSWC intends to use the proceeds from any new long-term debt to reduce its intercompany borrowings and to partially fund capital expenditures. AWR parent intends to use any financing proceeds from GSWC to pay down the amounts outstanding under its credit facility.

Utility Accounting: Registrant’s accounting policies conform to accounting principles generally accepted in the United States of America ("U.S. GAAP"), including the accounting principles for rate-regulated enterprises, which reflect the ratemaking policies of the CPUC and the FERC. GSWC has incurred various costs and received various credits reflected as regulatory assets and liabilities. Accounting for such costs and credits as regulatory assets and liabilities is in accordance with the guidance for accounting for the effects of certain types of regulation. This guidance sets forth the application of U.S. GAAP for those companies whose rates are established by or are subject to approval by an independent third-party regulator.

Under such accounting guidance, rate-regulated entities defer costs and credits on the balance sheet as regulatory assets and liabilities when it is probable that those costs and credits will be recognized in the ratemaking process in a period different from the period in which they would have been reflected in income by an unregulated company. These regulatory assets and liabilities are then recognized in the income statement in the period in which the same amounts are reflected in the rates charged for service. The amounts included as regulatory assets and liabilities that will be collected or refunded over a period exceeding one year are classified as long-term assets and liabilities as of December 31, 2019 and 2018.

Property and Depreciation: Registrant's property consists primarily of regulated utility plant at GSWC. GSWC capitalizes, as utility plant, the cost of construction and the cost of additions, betterments and replacements of retired units of property. Such cost includes labor, material and certain indirect charges. Water systems acquired are recorded at estimated original cost of utility plant when first devoted to utility service and the applicable depreciation is recorded to accumulated depreciation. The difference between the estimated original cost, less accumulated depreciation, and the purchase price, if recognized by the regulator, is recorded as an acquisition adjustment within utility plant.

Depreciation is computed on the straight-line, remaining-life basis, group method, in accordance with the applicable ratemaking process. GSWC's provision for depreciation expressed as a percentage of the aggregate depreciable asset balances was 2.2% for 2019, 2.7% for 2018, and 2.6% for 2017. Depreciation expense for GSWC, excluding amortization expense and depreciation on transportation equipment, totaled $31.7 million, $37.3 million and $36.5 million for the years ended December 31, 2019, 2018 and 2017. Depreciation computed on GSWC’s transportation equipment is recorded in other operating expenses and totaled $316,000, $238,000 and $242,000 for the years ended December 31, 2019, 2018 and 2017, respectively. Expenditures for maintenance and repairs are expensed as incurred. Retired property costs, including costs of removal, are charged to the accumulated provision for depreciation.

Estimated useful lives of GSWC’s utility plant, as authorized by the CPUC, are as follows:



Source of water supply	30 years to 50 years
Pumping	25 years to 40 years
Water treatment	20 years to 35 years
Transmission and distribution	25 years to 55 years
Generation	40 years
Other plant	7 years to 40 years

Non-regulated property consists primarily of equipment utilized by ASUS and its subsidiaries for its operations. This property is stated at cost, net of accumulated depreciation, which is calculated using the straight-line method over the useful lives of the assets.

Asset Retirement Obligations: GSWC has a legal obligation for the retirement of its wells, which by law need to be properly capped at the time of removal. As such, GSWC incurs asset retirement obligations. GSWC records the fair value of a liability for these asset retirement obligations in the period in which they are incurred. When the liability is initially recorded, GSWC capitalizes the cost by increasing the carrying amount of the related long-lived asset. Over time, the liability is accreted to its present value each period, and the capitalized cost is depreciated over the useful life of the related asset. Upon settlement of the liability, GSWC either settles the obligation for its recorded amount or incurs a gain or loss upon settlement. Retirement costs have historically been recovered through rates subsequent to the retirement costs being incurred. Accordingly, recoverability of GSWC’s asset retirement obligations are reflected as a regulatory asset. GSWC also reflects the loss or gain at settlement as a regulatory asset or liability on the balance sheet.

With regards to removal costs associated with certain other long-lived assets, such as water mains, distribution and transmission assets, asset retirement obligations have not been recognized as GSWC believes there is no legal obligation to do so. There are no CPUC rules or regulations that require GSWC to remove any of its other long-lived assets. In addition, GSWC’s water pipelines are not subject to regulation by any federal regulatory agency. GSWC has franchise agreements with various municipalities in order to use the public right of way for utility purposes (i.e., operate water distribution and transmission assets), and if certain events occur in the future, GSWC could be required to remove or relocate certain of its pipelines. However, it is not possible to estimate an asset retirement amount since the timing and the amount of assets that may be required to be removed, if any, is not known.

Amounts recorded for asset retirement obligations are subject to various assumptions and determinations, such as determining whether a legal obligation exists to remove assets, estimating the fair value of the costs of removal, when final removal will occur and the credit-adjusted risk-free interest rates to be utilized on discounting future liabilities. Changes that may arise over time with regard to these assumptions will change amounts recorded in the future. Revisions in estimates for timing or estimated cash flows are recognized as changes in the carrying amount of the liability and the related capitalized asset. The estimated fair value of the costs of removal was based on third-party costs.

Impairment of Long-Lived Assets: Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable in accordance with accounting guidance for impairment or disposal of long-lived assets. Registrant would recognize an impairment loss on its regulated assets only if the carrying value amount of a long-lived asset is not recoverable from customer rates authorized by the CPUC. Impairment loss is measured as the excess of the carrying value over the amounts recovered in customer rates. For the years ended December 31, 2019, 2018 and 2017, no impairment loss was incurred.

Goodwill: At December 31, 2019 and 2018, AWR had approximately $1.1 million of goodwill. The $1.1 million goodwill arose from ASUS’s acquisition of a subcontractor’s business at some of the Military Utility Privatization Subsidiaries. In accordance with the accounting guidance for testing goodwill, AWR annually assesses qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. For 2019, AWR’s assessment of qualitative factors did not indicate that an impairment had occurred for goodwill at ASUS.

Cash and Cash Equivalents: Cash and cash equivalents include short-term cash investments with an original maturity of three months or less. At times, cash and cash equivalent balances may be in excess of federally insured limits. Cash and cash equivalents are held with financial institutions with high credit standings.

Accounts Receivable: Accounts receivable is reported on the balance sheet net of any allowance for doubtful accounts. The allowance for doubtful accounts is Registrant’s best estimate of the amount of probable credit losses in Registrant’s existing accounts receivable from its water and electric customers, and is determined based on historical write-off experience and the aging of account balances. Registrant reviews the allowance for doubtful accounts quarterly. Account balances are written off against the allowance when it is probable the receivable will not be recovered. When utility customers request extended payment terms, credit is extended based on regulatory guidelines, and collateral is not required.

Receivables from the U.S. government include amounts due under contracts with the U.S. government to operate and maintain, and/or provide construction services for the water and/or wastewater systems at military bases. Other accounts receivable consist primarily of amounts due from third parties (non-utility customers) for various reasons, including amounts due from contractors, amounts due under settlement agreements and amounts due from other third-party prime government contractors pursuant to agreements for construction of water and/or wastewater facilities for such third-party prime contractors. The allowance for these other accounts receivable is based on Registrant’s evaluation of the receivable portfolio under current conditions and a review of specific problems and such other factors that, in Registrant’s judgment, should be considered in estimating losses.

Allowances for doubtful accounts are disclosed in Note 18. Registrant adopted Accounting Standards Update 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments effective January 1, 2020, which did not have an impact on Registrant's allowance for doubtful accounts.

Materials and Supplies: Materials and supplies are stated at the lower of cost or net realizable value. Cost is computed using average cost. Major classes of materials include pipe, hydrants and valves.

Interest: Interest incurred during the construction of capital assets has generally not been capitalized for financial reporting purposes as such policy is not followed in the ratemaking process. Interest expense is generally recovered through the regulatory process. However, the CPUC has authorized certain capital projects to be filed for revenue recovery with advice letters when those projects are completed. During the time that such projects are under development and construction, GSWC may accrue an allowance for funds used during construction (“AFUDC”) on the incurred expenditures to offset the cost of

financing project construction. For the years ended December 31, 2019, 2018 and 2017, the amount of AFUDC recorded has been immaterial.

Debt Issuance Costs and Redemption Premiums: Original debt issuance costs are deducted from the carrying value of the associated debt liability and amortized over the lives of the respective issues. Premiums paid on the early redemption of debt, which is reacquired through refunding, are deferred and amortized over the life of the debt issued to finance the refunding as GSWC normally receives recovery of these costs in rates.

Advances for Construction and Contributions in Aid of Construction: Advances for construction represent amounts advanced by developers for the cost to construct water system facilities in order to extend water service to their properties. Advances are refundable in equal annual installments, generally over 40 years. In certain instances, GSWC makes refunds on these advances over a specific period of time based on operating revenues related to the main or as new customers are connected to receive service from the main. Contributions in aid of construction are similar to advances but require no refunding. Generally, GSWC depreciates contributed property and amortizes contributions in aid of construction at the composite rate of the related property. Utility plant funded by advances and contributions is excluded from rate base.

Fair Value of Financial Instruments: For cash and cash equivalents, accounts receivable, accounts payable and short-term debt, the carrying amount is assumed to approximate fair value due to the short-term nature of the amounts. The table below estimates the fair value of long-term debt issued by GSWC. Rates available to GSWC at December 31, 2019 and 2018 for debt with similar terms and remaining maturities were used to estimate fair value for long-term debt. Changes in the assumptions will produce differing results.



	2019				2018
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Long-term debt—GSWC (1)	$	284,699	$	376,467	$	324,978	$	387,889

(1) Excludes debt issuance costs and redemption premiums.

The accounting guidance for fair value measurements applies to all financial assets and financial liabilities that are being measured and reported on a fair value basis. Under the accounting guidance, GSWC makes fair value measurements on its publicly issued notes, private placement notes and other long-term debt using current U.S. corporate bond yields for similar debt instruments. Under the fair value guidance, these are classified as Level 2, which consists of quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability.

The following table sets forth by level, within the fair value hierarchy, GSWC’s long-term debt measured at fair value as of December 31, 2019:



(dollars in thousands)	Level 1	Level 2		Level 3	Total
Long-term debt—GSWC	—	$	376,467	—	$	376,467

Stock-Based Awards: AWR has issued stock-based awards to its employees under stock incentive plans. AWR has also issued stock-based awards to its Board of Directors under non-employee directors stock plans. Registrant applies the provisions in the accounting guidance for share-based payments in accounting for all of its stock-based awards. See Note 13 for further discussion.

Recently Issued Accounting Pronouncements:

Accounting Pronouncements Adopted in 2019

In February 2016, the Financial Accounting Standards Board ("FASB") issued a new lease accounting standard, Leases (Accounting Standards Codification ("ASC") 842), which replaces the prior lease guidance, (ASC 840). Under the new standard, lessees will recognize a right-of-use asset and a lease liability for virtually all leases (other than leases that meet the definition of a short-term lease). For income statement purposes, leases will be classified as either operating or finance. Operating leases will result in straight-line expense while finance leases will result in a front-loaded expense pattern. Registrant adopted the new lease accounting standard as of January 1, 2019 and did not adjust comparative periods for it. There was no cumulative-effect impact to the opening balance of retained earnings as a result of this adoption. Registrant elected the practical expedient under Accounting Standards Update ("ASU") 2018-01 Land Easement Practical Expedient for Transition to Topic 842 and did not review existing easements entered into prior to January 1, 2019. Leases with terms of twelve months or less were not recorded on the balance sheet. The adoption of the new lease guidance did not have a material impact on Registrant's results of operations or liquidity but resulted in the recognition of operating lease liabilities and operating lease

right-of-use assets on its balance sheets. The adoption of this guidance as of January 1, 2019 resulted in the recognition of $7.6 million in right-of-use assets and $8.0 million in operating lease liabilities (see Note 16).

In August 2018, the FASB issued ASU 2018-15-Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. Under this ASU, entities that enter into cloud computing service arrangements are required to apply existing internal-use software guidance to determine which implementation costs are eligible for capitalization. Under that guidance, implementation costs are capitalized or expensed depending on the nature of the costs and the project stage during which they are incurred. Registrant adopted this guidance effective January 1, 2019. The adoption of this accounting standard did not have a significant impact on Registrant's financial statements.

Accounting Pronouncements to be Adopted in Future Periods

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments and issued further guidance in November 2018 and May 2019 related to the impairment of financial instruments effective January 1, 2020. The new guidance provides an impairment model, known as the current expected credit loss model, which is based on expected credit losses rather than incurred losses over the remaining life of most financial assets measured at amortized cost, including trade and other receivables. Registrant's adoption of the new guidance effective January 1, 2020 did not have an impact on its financial statements.

In August 2018, the FASB issued ASU 2018-14-Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans. This ASU removes disclosures to pension plans and other post-retirement benefit plans that no longer are considered cost beneficial, clarifies the specific disclosure requirements and adds disclosure requirements deemed relevant. This ASU is effective for fiscal years ending after December 15, 2020 and will be applied by Registrant on a retrospective basis to all periods presented. Registrant is still evaluating the ASU and has not yet determined the effect on its financial statements and disclosures.

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes. The amendments in this update simplify the accounting for income taxes by removing certain exceptions and clarifying certain requirements regarding franchise taxes, goodwill, consolidated tax expenses, and annual effective tax rate calculations. The ASU is effective for fiscal years beginning after December 15, 2020. Early adoption is permitted. Registrant is evaluating the impact of this ASU on its financial statements.

Revenues

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer [Text Block]

Revenues

Most of Registrant's revenues are accounted for under the revenue recognition accounting standard, "Revenue from Contracts with Customers - (Topic 606)." The adoption of this accounting standard effective January 1, 2018 did not have a material impact on Registrant's measurement or timing of revenue recognition.

GSWC provides water and electric utility services to customers as specified by the CPUC. The transaction prices for water and electric revenues are based on tariff rates authorized by the CPUC, which include both quantity-based and flat-rate charges. Tariff revenues represent the adopted revenue requirement authorized by the CPUC intended to provide GSWC with an opportunity to recover its costs and earn a reasonable return on its net capital investment. The annual revenue requirements are comprised of operation and maintenance costs, administrative and general costs, depreciation and taxes in amounts authorized by the CPUC and a return on rate base consistent with the capital structure authorized by the CPUC.

Water and electric revenues are recognized over time as customers simultaneously receive and use the utility services provided. Water and electric revenues include amounts billed to customers on a cyclical basis, nearly all of which are based on meter readings for services provided. Customer bills also include surcharges for cost-recovery activities, which represent CPUC-authorized balancing and memorandum accounts that allow for the recovery of previously incurred operating costs. Revenues from these surcharges do not impact earnings as they are offset by corresponding increases in operating expenses to reflect the recovery of the associated costs. Customer payment terms are approximately 20 business days from the billing date. Unbilled revenues are amounts estimated to be billed for usage since the last meter-reading date to the end of the accounting period. The most recent customer billed usage forms the basis for estimating unbilled revenue.

GSWC bills certain sales and use taxes levied by state or local governments to its customers. Included in these sales and use taxes are franchise fees, which GSWC pays to various municipalities and counties (based on their ordinances) in order to use public rights of way for utility purposes. GSWC bills these franchise fees to its customers based on a CPUC-authorized rate for each ratemaking area as applicable. These franchise fees, which are required to be paid regardless of GSWC’s ability to collect them from its customers, are accounted for on a gross basis. GSWC’s franchise fees billed to customers and recorded as operating revenue were approximately $4.0 million, $3.6 million and $3.6 million for the years ended December 31, 2019, 2018 and 2017, respectively. When GSWC acts as an agent, and a tax is not required to be remitted if it is not collected from customers, the tax is accounted for on a net basis.

As authorized by the CPUC, GSWC records in revenues the difference between the adopted level of volumetric revenues as authorized by the CPUC for metered accounts (volumetric revenues) and the actual volumetric revenues recovered in customer rates. The difference is tracked under the Water Revenue Adjustment Mechanism (“WRAM”) regulatory accounts for its water segment, and the Base Revenue Requirement Adjustment Mechanism ("BRRAM") regulatory account for its electric segment. If this difference results in an under-collection of revenues, GSWC records the additional revenue only to the extent that they are expected to be collected within 24 months following the year in which they are recorded in accordance with Accounting Standards Codification ("ASC") Topic 980, Regulated Operations.

ASUS's 50-year firm fixed-price contracts with the U.S. government are considered service concession arrangements under ASC 853 Service Concession Arrangements. Accordingly, the services under these contracts are accounted for under Topic 606 Revenue from Contracts with Customers and the water and/or wastewater systems are not recorded as Property, Plant and Equipment on Registrant’s balance sheet. For ASUS, performance obligations consist of (i) performing ongoing operation and maintenance of the water and/or wastewater systems and treatment plants for each military base served, and (ii) performing construction activities (including renewal and replacement capital work) on each military base served. The transaction price for each performance obligation is either delineated in, or initially derived from, the applicable 50-year contract and/or any subsequent contract modifications. Depending on the state in which operations are conducted, the Military Utility Privatization Subsidiaries are also subject to certain state non-income tax assessments which are accounted for on a gross basis and have been immaterial to date.

The ongoing performance of operation and maintenance of the water and/or wastewater systems and treatment plants is viewed as a single performance obligation for each 50-year contract with the U.S. government. Registrant recognizes revenue for operations and maintenance fees monthly using the "right to invoice" practical expedient under ASC Topic 606. ASUS has a right to consideration from the U.S. government in an amount that corresponds directly to the value to the U.S. government of ASUS’s performance completed to-date. The contractual operations and maintenance fees are firm-fixed, and the level of effort or resources expended in the performance of the operations-and-maintenance-fees performance obligation is largely consistent over the 50-year term. Therefore, Registrant has determined that the monthly amounts invoiced for operations and maintenance performance are a fair reflection of the value transferred to the U.S. government. Invoices to the U.S. government for operations and maintenance service, as well as construction activities, are due upon receipt.

ASUS's construction activities consist of various projects to be performed. Each of these projects' transaction prices are delineated either in the 50-year contract or through a specific contract modification for each construction project, which includes the transaction price for that project. Each construction project is viewed as a separate, single performance obligation.

Therefore, it is generally unnecessary to allocate a construction transaction price to more than one construction performance obligation. Revenues for construction activities are recognized over time, with progress toward completion measured based on the input method using costs incurred relative to the total estimated costs (cost-to-cost method). Due to the nature of these construction projects, Registrant has determined the cost-to-cost input measurement to be the best method to measure progress towards satisfying its construction contract performance obligations, as compared to using an output measurement such as units produced. Changes in job performance, job site conditions, change orders and/or estimated profitability may result in revisions to costs and income for ASUS, and are recognized in the period in which any such revisions are determined. Pre-contract costs for ASUS, which consist of design and engineering labor costs, are deferred if recovery is probable, and are expensed as incurred if recovery is not probable. Deferred pre-contract costs have been immaterial to date.

Contracted services revenues recognized during the years ended December 31, 2019 and 2018 from performance obligations satisfied in previous periods were not material.

Although GSWC has a diversified base of residential, commercial, industrial and other customers, revenues derived from residential and commercial customers account for nearly 90% of total water revenues, and 90% of total electric revenues. The vast majority of ASUS's revenues are from the U.S. government. For the years ended December 31, 2019 and 2018, disaggregated revenues from contracts with customers by segment are as follows:



(dollar in thousands)	For The Year Ended December 31, 2019		For The Year Ended December 31, 2018
Water:
Tariff-based revenues	$	305,244	$	298,818
CPUC-approved surcharges (cost-recovery activities)	4,322		2,962
Other	2,006		1,813
Water revenues from contracts with customers	311,572		303,593
WRAM under/(over)-collection (alternative revenue program)	8,258		(8,335		)
Total water revenues	319,830		295,258

Electric:
Tariff-based revenues	36,628		34,501
CPUC-approved surcharges (cost-recovery activities)	410		214
Electric revenues from contracts with customers	37,038		34,715
BRRAM under/(over)-collection (alternative revenue program)	2,510		(365		)
Total electric revenues	39,548		34,350

Contracted services:
Water	59,868		62,273
Wastewater	54,623		44,935
Contracted services revenues from contracts with customers	114,491		107,208

Total revenues	$	473,869	$	436,816

The opening and closing balances of the receivable from the U.S. government, contract assets and contract liabilities from contracts with customers, which related entirely to ASUS, are as follows:



(dollar in thousands)	December 31, 2019		December 31, 2018

Unbilled receivables	$	10,467	$	5,696
Receivable from the U.S. government	$	64,819	$	61,126
Contract assets	$	15,631	$	24,447
Contract liabilities	$	11,167	$	7,530

Unbilled receivables from the U.S. government represent receivables where the right to payment is conditional only by the passage of time. The increase in unbilled receivables as of December 31, 2019 as compared to December 31, 2018 was due

to the completion in 2019 of construction projects at Fort Riley, which will be collected in installments from the U.S. government over a 5-year period.

Contract Assets - Contract assets are those of ASUS and consist of unbilled revenues recognized from work-in-progress construction projects where the right to payment is conditional on something other than the passage of time. The classification of this asset as current or noncurrent is based on the timing of when ASUS expects to bill these amounts.

Contract Liabilities - Contract liabilities are those of ASUS and consist of billings in excess of revenue recognized. The classification of this liability as current or noncurrent is based on the timing of when ASUS expects to recognize revenue. Revenues for the year ended December 31, 2019 that were included in contract liabilities at the beginning of the period were $7.3 million.

As of December 31, 2019, Registrant's aggregate remaining performance obligations, all of which are for the contracted services segment, was $3.2 billion. Registrant expects to recognize revenue on these remaining performance obligations over the remaining terms of each of the 50-year contracts, which range from 36 to 50 years. Each of the contracts with the U.S. government is subject to termination, in whole or in part, prior to the end of its 50-year term for the convenience of the U.S. government.

Regulatory Matters

12 Months Ended

Dec. 31, 2019

Regulated Operations [Abstract]

Regulatory Matters

In accordance with accounting principles for rate-regulated enterprises, Registrant records regulatory assets, which represent probable future recovery of costs from customers through the ratemaking process, and regulatory liabilities, which represent probable future refunds that are to be credited to customers through the ratemaking process. At December 31, 2019, Registrant had approximately $43.1 million of regulatory liabilities, net of regulatory assets, not accruing carrying costs. Of this amount, (i) $79.9 million of regulatory liabilities relates to the creation of an excess deferred income tax liability brought about by a lower federal income tax rate as a result of the Tax Cuts and Jobs Act (see Note 11) that is expected to be refunded to customers, (ii) $12.4 million relates to flow-through deferred income taxes including the gross-up portion on the deferred tax resulting from the excess deferred income tax regulatory liability (also see Note 11), and (iii) $43.4 million of regulatory assets relates to the underfunded position in Registrant's pension and other post-retirement obligations (not including the two-way pension balancing accounts). The remainder relates to other items that do not provide for or incur carrying costs.

Regulatory assets represent costs incurred by GSWC for which it has received or expects to receive rate recovery in the future. In determining the probability of costs being recognized in other periods, GSWC considers regulatory rules and decisions, past practices, and other facts or circumstances that would indicate if recovery is probable. If the CPUC determines that a portion of GSWC’s assets are not recoverable in customer rates, GSWC must determine if it has suffered an asset impairment that requires it to write down the asset's value. Regulatory assets are offset against regulatory liabilities within each rate-making area. Amounts expected to be collected or refunded in the next twelve months have been classified as current assets and current liabilities by rate-making area. Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows:



	December 31,
(dollars in thousands)	2019			2018
GSWC
Water Revenue Adjustment Mechanism and Modified Cost Balancing Account	$	22,535		$	17,763
Costs deferred for future recovery on Aerojet case	8,292			9,516
Pensions and other post-retirement obligations (Note 12)	40,693			33,124
Derivative unrealized loss (Note 5)	3,171			311
General rate case memorandum accounts	4,820			5,054
Other regulatory assets	18,842			18,440
Excess deferred income taxes (Note 11)	(79,886		)	(81,465		)
Flow-through taxes, net (Note 11)	(12,439		)	(15,273		)
Tax Cuts and Jobs Act ("Tax Act") memorandum accounts	—			(8,293		)
Various refunds to customers	(8,478		)	(7,517		)
Total	$	(2,450	)	$	(28,340	)

Alternative-Revenue Programs:

Under the WRAM, GSWC records the difference between the adopted level of volumetric revenues as authorized by the CPUC for metered accounts (adopted volumetric revenues) and the actual volumetric revenues recovered in customer rates. While the WRAM tracks volumetric-based revenues, the revenue requirements approved by the CPUC include service charges, flat rate charges, and other items that are not subject to the WRAM. The adopted volumetric revenues consider the seasonality of consumption of water based upon historical averages. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts is recorded as a component of revenue with an offsetting entry to an asset or liability balancing account (tracked individually for each rate making area). The variance amount may be positive or negative and represents amounts that will be billed or refunded to customers in the future. The WRAM only applies to customer classes with conservation rates in place. The majority of GSWC’s water customers have conservation rate structures.

Under the Modified Cost Balancing Account (“MCBA”), GSWC tracks adopted expense levels for purchased water, purchased power and pump taxes, as established by the CPUC. Variances (which include the effects of changes in both rate and volume) between adopted and actual purchased water, purchased power, and pump tax expenses are recorded as a component of the MCBA to be recovered from or refunded to GSWC’s customers at a later date. This is reflected with an offsetting entry to an asset or liability balancing account (tracked individually for each rate-making area). Unlike the WRAM, the MCBA applies to all customer classes.

The recovery or refund of the WRAM is netted against the MCBA over- or under-collection for the corresponding rate-making area and bears interest at the current 90-day commercial-paper rate. During the year ended December 31, 2019, $11.6 million of pre-2019 WRAM/MCBA balances were recovered. During 2019, GSWC recorded an additional $16.3 million net under-collection in the WRAM/MCBA. The majority of this balance represents an under-collection of supply costs incurred and recorded in the MCBA due to a higher volume of purchased water as compared to adopted. As of December 31, 2019, GSWC had an aggregated regulatory asset of $22.5 million, which is comprised of an $11.0 million under-collection in the WRAM accounts and an $11.5 million under-collection in the MCBA accounts. In February 2020, GSWC filed with the CPUC for recovery of the 2019 WRAM/MCBA balances.

As required by the accounting guidance for alternative revenue programs, GSWC is required to collect its WRAM balances within 24 months following the year in which an under-collection is recorded. As of December 31, 2019, there were no WRAM under-collections that were estimated to be collected over more than 24 months.

Costs Deferred for Future Recovery:

The CPUC authorized a memorandum account to allow for the recovery of costs incurred by GSWC related to contamination lawsuits brought against Aerojet-General Corporation ("Aerojet") and the state of California. In July 2005, the CPUC authorized GSWC to recover approximately $21.3 million of the Aerojet litigation memorandum account, through a rate surcharge, which will continue for no longer than 20 years. Beginning in October 2005, a surcharge went into effect to begin amortizing the memorandum account over a 20-year period.

Aerojet also agreed to reimburse GSWC $17.5 million, plus interest accruing from January 1, 2004, for GSWC’s past legal and expert costs, which is included in the Aerojet litigation memorandum account. The reimbursement of the $17.5 million is contingent upon the issuance of land use approvals for development in a defined area within Aerojet property in Eastern Sacramento County and the receipt of certain fees in connection with such development. It is management’s intention to offset any proceeds from the housing development by Aerojet in this area against the balance in this litigation memorandum account. At this time, management believes the full balance of the Aerojet litigation memorandum account will be collected either from customers or Aerojet.

Pensions and Other Post-retirement Obligations:

A regulatory asset has been recorded at December 31, 2019 and 2018 for the costs that would otherwise be charged to “other comprehensive income” within shareholders’ equity for the underfunded status of Registrant’s pension and other post-retirement benefit plans because the cost of these plans has historically been recovered through rates. As discussed in Note 12, as of December 31, 2019, Registrant’s underfunded position for these plans that have been recorded as a regulatory asset totaled $43.4 million. Registrant expects this regulatory asset to be recovered through rates in future periods.

The CPUC has authorized GSWC to use two-way balancing accounts to track differences between the forecasted annual pension expenses adopted in both water and electric rates and the actual annual expense to be recorded by GSWC in accordance with the accounting guidance for pension costs. The two-way balancing accounts bear interest at the current 90-day commercial paper rate. As of December 31, 2019, GSWC has a net $2.7 million over-collection in the two-way pension balancing accounts, consisting of a $1.5 million over-collection related to the general office and water regions, and a $1.2 million over-collection related to BVES.

General Rate Case Memorandum Accounts:

The balance in the general rate case memorandum accounts represents the revenue differences between interim rates and final rates authorized by the CPUC due to delays in receiving decisions on various general rate case applications. As of December 31, 2019, there is a net aggregate $4.8 million under-collection in these accounts, primarily related to the revenue difference between interim rates and final rates authorized by the CPUC in the May 2019 decision, as further discussed below. GSWC has implemented surcharges ranging from 12-36 months to collect the $4.8 million balance.

Tax Cuts and Jobs Act ("Tax Act") Memorandum Accounts:

On December 22, 2017, the Tax Act was signed into federal law. The provisions of this major tax reform were generally effective January 1, 2018. The most significant provisions of the Tax Act impacting GSWC are the reduction of the federal corporate income tax rate from 35% to 21% and the elimination of bonus depreciation for regulated utilities. Pursuant to a CPUC directive, the 2018 impact of the Tax Act on the water segment’s adopted revenue requirement was tracked in a memorandum account effective January 1, 2018. For 2018, over-collections of approximately $7.1 million related to the water segment were tracked and recorded as a regulatory liability. On July 1, 2018, new lower water rates, which incorporate the new federal income tax rate, were implemented for all water ratemaking areas. GSWC refunded the $7.1 million to water customers in 2019.

The electric general rate case approved by the CPUC in August 2019 was retroactive to January 1, 2018. The new rates approved in this general rate case incorporate the effects of the Tax Act.

Reductions in the water and electric revenue requirements resulting from the impacts of the Tax Act are largely offset by decreases in GSWC's income tax expense, resulting in minimal impact to net earnings (see Note 11).

Other Regulatory Assets:

Other regulatory assets represent costs incurred by GSWC for which it has received or expects to receive rate recovery in the future. These regulatory assets are supported by regulatory rules and decisions, past practices, and other facts or circumstances that indicate recovery is probable.

Other Regulatory Matters:

Renewables Portfolio Standard:

BVES is subject to the renewables portfolio standard (“RPS”) law, which requires BVES to meet certain targets for purchases of energy from qualified renewable energy resources. In December 2012, GSWC entered into a ten-year agreement with a third party to purchase renewable energy credits (“RECs”) whereby GSWC agreed to purchase approximately 578,000 RECs over a ten-year period, which would be used towards meeting California's RPS requirements. As of December 31, 2019, GSWC believes it has purchased sufficient RECs to be in compliance for all periods through 2019. Accordingly, no provision for loss or potential penalties has been recorded in the financial statements as of December 31, 2019. The cost of these RECs has been included as part of the electric supply cost balancing account as of December 31, 2019.

Cost of Capital Proceeding:

In March 2018, the CPUC issued a final decision in the cost of capital proceeding for GSWC and three other water utilities for the years 2018 - 2020. Among other things, the final decision adopted for GSWC's water segment a return on equity of 8.90%, with a return on rate base of 7.91%. The previously authorized return on equity for GSWC’s water segment was 9.43%, with a return on rate base of 8.34%. In April 2018, GSWC implemented new water rates to incorporate the cost of capital decision. For the year ended December 31, 2019, GSWC recorded a regulatory liability with a corresponding decrease in water revenues of approximately $982,000 representing the revenue difference between the old and new cost of capital rates through April 2018.

General Rate Case Filings:

Water Segment:

In July 2017, GSWC filed a general rate case application for all of its water regions and the general office to determine new rates for the years 2019 - 2021. On May 30, 2019, the CPUC issued a final decision on GSWC's water general rate case with rates retroactive to January 1, 2019. As a result of the May 2019 CPUC final decision, GSWC implemented new water rates on June 8, 2019. The CPUC in the final decision also approved the recovery of previously incurred costs that were being tracked in CPUC-authorized memorandum accounts. This resulted in a reduction to administrative and general expense of approximately $1.1 million, which was recorded during the second quarter of 2019.

Electric Segment:

In May 2017, GSWC filed its electric general rate case application with the CPUC to determine new electric rates for the years 2018 through 2021. In November 2018, GSWC and the Public Advocates Office filed a joint motion to adopt a settlement agreement between the two parties resolving all issues in connection with the general rate case.

On August 15, 2019, the CPUC issued a final decision on this general rate case, adopting the settlement agreement in its entirety. As a result of the decision, which was retroactive to January 1, 2018, Registrant recorded approximately $2.3 million of pretax income in 2019 which related to 2018. Among other things, the decision (i) authorizes a new return on equity for GSWC's electric segment of 9.60%, as compared to its previously authorized return of 9.95%; (ii) includes a capital structure and debt cost similar to those approved by the CPUC in March 2018 in connection with GSWC's water segment cost of capital proceeding; and (iii) extends the rate cycle by an additional year (new rates will be effective for 2018 - 2022).

Utility Plant and Intangible Assets

12 Months Ended

Dec. 31, 2019

Utility Plant and Intangible Assets

Utility Plant and Intangible Assets

The following table shows Registrant’s utility plant (regulated utility plant and non-regulated utility property) by major asset class:



	AWR December 31,						GSWC December 31,
(dollars in thousands)	2019			2018			2019			2018
Water
Land	$	18,066		$	14,890		$	18,066		$	14,890
Intangible assets	28,578			29,412			28,578			29,413
Source of water supply	91,685			91,349			91,685			91,349
Pumping	178,058			182,673			178,058			182,673
Water treatment	78,048			82,198			78,048			82,198
Transmission and distribution	1,219,285			1,142,105			1,219,285			1,142,105
Other	117,276			131,419			86,722			106,907
	1,730,996			1,674,046			1,700,442			1,649,535
Electric
Transmission and distribution	84,018			82,257			84,018			82,257
Generation	12,583			12,583			12,583			12,583
Other (1)	11,824			11,224			11,824			11,224
	108,425			106,064			108,425			106,064

Less — accumulated depreciation	(543,263		)	(561,855		)	(531,801		)	(551,244		)
Construction work in progress	119,547			78,055			117,676			76,737
Net utility plant	$	1,415,705		$	1,296,310		$	1,394,742		$	1,281,092

(1) Includes intangible assets of $1.2 million for the years ended December 31, 2019 and 2018 for studies performed in association with the electricity segment of the Registrant’s operations.

As of December 31, 2019 and 2018, intangible assets consist of the following:



	Weighted Average Amortization	AWR December 31,						GSWC December 31,
(dollars in thousands)	Period	2019			2018			2019			2018
Intangible assets:
Conservation programs	3 years	$	9,486		$	9,486		$	9,486		$	9,486
Water and service rights (2)	30 years	8,695			8,695			8,124			8,124
Water planning studies	14 years	11,808			12,641			11,808			12,641
Total intangible assets		29,989			30,822			29,418			30,251
Less — accumulated amortization		(24,309		)	(24,399		)	(24,166		)	(24,268		)
Intangible assets, net of amortization		$	5,680		$	6,423		$	5,252		$	5,983

Intangible assets not subject to amortization (3)		$	402		$	422		$	402		$	404

(2) Includes intangible assets of $571,000 for contracted services included in "Other Property and Investments" on the consolidated balance sheets as of December 31, 2019 and 2018.

(3) The intangible assets not subject to amortization primarily consist of organization and consent fees.

For the years ended December 31, 2019, 2018 and 2017, amortization of intangible assets was $1.3 million, $1.1 million and $1.5 million, respectively, for both AWR and GSWC. Estimated future consolidated amortization expenses related to intangible assets for the succeeding five years are (in thousands):



	Amortization Expense
2020	$	90
2021	12
2022	12
2023	12
2024	12
Total	$	138

Asset Retirement Obligations:

The following is a reconciliation of the beginning and ending aggregate carrying amount of asset retirement obligations, which are included in “Other Credits” on the balance sheets as of December 31, 2019 and 2018:



(dollars in thousands)	GSWC
Obligation at December 31, 2017	$	4,963
Additional liabilities incurred	256
Liabilities settled	(46		)
Accretion	55
Obligation at December 31, 2018	$	5,228
Additional liabilities incurred	271
Liabilities settled	(173		)
Accretion	86
Revision of previous estimates	3,451
Obligation at December 31, 2019	$	8,863

Revision of previous estimates reflect updated estimated costs for the retirement of wells, which GSWC is legally required to cap at the time of removal. Wells have an estimated useful life of 50 years.

Derivative Instruments

12 Months Ended

Dec. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

GSWC's electric division, BVES, purchases power under long-term contracts at a fixed cost depending on the amount of power and the period during which the power is purchased under such contracts. In August 2019, the CPUC approved an application that allowed BVES to enter into new long-term purchased power contracts with energy providers, which BVES executed in September 2019. BVES began taking power under these long-term contracts during the fourth quarter of 2019 at a fixed cost over three and five-year terms depending on the amount of power and period during which the power is purchased under the contracts.

These long-term contracts are subject to the accounting guidance for derivatives and require mark-to-market derivative accounting. Among other things, the CPUC also authorized BVES to establish a regulatory asset and liability memorandum account to offset the mark-to-market entries required by the accounting guidance. Accordingly, all unrealized gains and losses generated from these purchased power contracts are deferred on a monthly basis into a non-interest bearing regulatory memorandum account that tracks the changes in fair value of the derivative throughout the term of the contract. As a result, these unrealized gains and losses do not impact GSWC’s earnings. As of December 31, 2019, there was a $3.2 million unrealized loss in the memorandum account, with a corresponding unrealized loss liability for the three and five-year purchased power contract as a result of the fixed prices being greater than the futures energy prices. The notional volume of derivatives remaining under these long-term contracts as of December 31, 2019 was approximately 638,000 megawatt hours.

As previously discussed in Note 1, the accounting guidance for fair value measurements establishes a framework for measuring fair value and requires fair value measurements to be classified and disclosed in one of three levels. Registrant’s valuation model utilizes various inputs that include quoted market prices for energy over the duration of the contracts. The market prices used to determine the fair value for these derivative instruments were estimated based on independent sources such as broker quotes and publications that are not observable in or corroborated by the market. When such inputs have a significant impact on the measurement of fair value, the instrument is categorized as Level 3. Accordingly, the valuation of the

derivatives on Registrant’s purchased power contracts have been classified as Level 3 for all periods presented. The following table presents changes in the fair value of GSWC’s derivatives for the years ended December 31, 2019 and 2018:



(dollars in thousands)	2019			2018
Balance, at beginning of the period	$	(311	)	$	(2,941	)
Unrealized (loss) gain on purchased power contracts	(2,860		)	2,630
Balance, at end of the period	$	(3,171	)	$	(311	)

Military Privatization	12 Months Ended
Military Privatization	Dec. 31, 2019
Military Privatization
Military Privatization	Military Privatization Each of the Military Utility Privatization Subsidiaries have entered into a service contract(s) with the U.S. government to operate and maintain, as well as perform construction activities to renew and replace, the water and/or wastewater systems at a military base or bases. The amounts charged for these services are based upon the terms of the 50-year contract between ASUS or the Military Utility Privatization Subsidiaries and the U.S. government. Under the terms of each of these agreements, the Military Utility Privatization Subsidiaries agree to operate and maintain the water and/or wastewater systems for: (i) a monthly net fixed-price for operation and maintenance, and (ii) an amount to cover renewal and replacement capital work. In addition, these contracts may also include firm, fixed-priced initial capital upgrade projects to upgrade the existing infrastructure. Contract modifications are also issued for other necessary capital upgrades to the existing infrastructure approved by the U.S. government. Under the terms of each of these contracts, prices are subject to an economic price adjustment ("EPA") provision, on an annual basis. Prices may also be equitably adjusted for changes in law and other circumstances. During 2018, the U.S. government issued contract modifications for the majority of ASUS's 50-year contracts addressing the impacts of the Tax Act. The modifications did not result in a material impact to ASUS's results for the year ended December 31, 2018. ASUS is permitted to file, and has filed, requests for equitable adjustment. Each of the contracts may be subject to termination, in whole or in part, prior to the end of the 50-year term for convenience of the U.S. government or as a result of default or nonperformance by the Military Utility Privatization Subsidiaries. On July 1, 2018, ASUS assumed the operation, maintenance and construction management of the water distribution and wastewater collection and treatment facilities at Fort Riley, a United States Army installation located in Kansas. The 50-year contract is subject to annual economic price adjustments. ASUS has experienced delays in receiving EPAs as provided for under its 50-year contracts. Because of the delays, EPAs, when finally approved, are retroactive. During 2019, the U.S. government approved EPAs at eight of the bases served. In some cases, these EPAs included retroactive operation and maintenance management fees for prior periods. For the years ended December 31, 2019 and 2018, retroactive operation and maintenance management fees related to prior periods were immaterial. For the year ended December 31, 2017, ASUS recorded approximately $1.0 million in retroactive operation and maintenance management fees and pretax operating income related to periods prior to 2017.

Earnings Per Share and Capital Stock

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share and Capital Stock

In accordance with the accounting guidance for participating securities and earnings per share (“EPS”), Registrant uses the “two-class” method of computing EPS. The “two-class” method is an earnings allocation formula that determines EPS for each class of common stock and participating security. AWR has participating securities related to restricted stock units that earn dividend equivalents on an equal basis with AWR’s Common Shares that have been issued under AWR’s 2016 employee plans and the 2003 and 2013 directors' plans. In applying the “two-class” method, undistributed earnings are allocated to both common shares and participating securities.

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding for calculating basic net income per share:



Basic:	For The Years Ended December 31,
(in thousands, except per share amounts)	2019		2018		2017
Net income	$	84,342	$	63,871	$	69,367
Less: (a) Distributed earnings to common shareholders	42,702		38,937		36,417
Distributed earnings to participating securities	180		204		197
Undistributed earnings	41,460		24,730		32,753

(b) Undistributed earnings allocated to common shareholders	41,285		24,601		32,577
Undistributed earnings allocated to participating securities	175		129		176
Total income available to common shareholders, basic (a)+(b)	$	83,987	$	63,538	$	68,994

Weighted average Common Shares outstanding, basic	36,814		36,733		36,638

Basic earnings per Common Share	$	2.28	$	1.73	$	1.88

Diluted EPS is based upon the weighted average number of Common Shares, including both outstanding shares and shares potentially issuable in connection with restricted stock units granted under AWR’s 2016 employee plans, and the 2003 and 2013 directors' plans, and net income. At December 31, 2019, there were also 159,720 restricted stock units outstanding including performance shares awarded to officers of the Registrant.

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding for calculating diluted net income per share:



Diluted:	For The Years Ended December 31,
(in thousands, except per share amounts)	2019		2018		2017
Common shareholders earnings, basic	$	83,987	$	63,538	$	68,994
Undistributed earnings for dilutive stock options and restricted stock units	175		129		176
Total common shareholders earnings, diluted	$	84,162	$	63,667	$	69,170

Weighted average Common Shares outstanding, basic	36,814		36,733		36,638
Stock-based compensation (1)	150		203		206
Weighted average Common Shares outstanding, diluted	36,964		36,936		36,844

Diluted earnings per Common Share	$	2.28	$	1.72	$	1.88

(1) In applying the treasury stock method of reflecting the dilutive effect of outstanding stock-based compensation in the calculation of diluted EPS, 159,720 restricted stock units, including performance awards, at December 31, 2019 were deemed to be outstanding in accordance with accounting guidance on earnings per share.

During the years ended December 31, 2019, 2018 and 2017, AWR issued Common Shares totaling 88,772, 44,906 and 56,498, respectively, under AWR's employee stock incentive plans and the non-employee directors' plans. In addition, during the years ended December 31, 2019, 2018 and 2017, AWR issued 30,998, 32,142 and 52,936 Common Shares for approximately $519,000, $546,000 and $909,000, respectively, as a result of the exercise of stock options. During 2019, 2018 and 2017, no cash proceeds received by AWR as a result of the exercise of stock options were distributed to any of AWR's subsidiaries. AWR has not issued any Common Shares during 2019, 2018 and 2017 under AWR's Common Share Purchase and Dividend Reinvestment Plan ("DRP") and the 401(k) Plan. Shares reserved for the 401(k) Plan are in relation to AWR’s matching contributions and investment by participants. As of December 31, 2019, there were 1,055,948 and 387,300 Common Shares authorized for issuance directly by AWR but unissued under the DRP and the 401(k) Plan, respectively.

During the years ended December 31, 2019, 2018 and 2017, AWR and GSWC made payments to taxing authorities on employees' behalf for shares withheld related to net share settlements. These payments are included in the stock-based compensation caption of the statements of equity. GSWC’s outstanding Common Shares are owned entirely by its parent, AWR. To the extent GSWC does not reimburse AWR for stock-based compensation awarded under various stock compensation plans, such amounts increase the value of GSWC’s common shareholder’s equity.

Dividend Limitations	12 Months Ended
Dividend Limitations	Dec. 31, 2019
Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]
Dividend Limitations	Dividend Limitations GSWC is subject to contractual restrictions on its ability to pay dividends. GSWC’s maximum ability to pay dividends is restricted by certain Note Agreements to the sum of $21.0 million plus 100% of consolidated net income from various dates plus the aggregate net cash proceeds received from capital stock offerings or other instruments convertible into capital stock from various dates. Under the most restrictive of the Note Agreements, $473.9 million was available to pay dividends to AWR as of December 31, 2019. GSWC is also prohibited from paying dividends if, after giving effect to the dividend, its total indebtedness to capitalization ratio (as defined) would be more than 0.6667-to-1. Dividends in the amount of $20.2 million, $68.9 million and $27.7 million were paid to AWR by GSWC during the years ended December 31, 2019, 2018 and 2017, respectively. The ability of AWR, ASUS and GSWC to pay dividends is also restricted by California law. Under California law, AWR, GSWC and ASUS are each permitted to distribute dividends to its shareholders so long as the Board of Directors determines, in good faith, that either: (i) the value of the corporation’s assets equals or exceeds the sum of its total liabilities immediately after the dividend, or (ii) its retained earnings equals or exceeds the amount of the distribution. Under the least restrictive of the California tests, approximately $346.0 million was available to pay dividends to AWR’s shareholders at December 31, 2019. Approximately $257.4 million was available for GSWC to pay dividends to AWR at December 31, 2019. Approximately $62.1 million was available for ASUS to pay dividends to AWR as of December 31, 2019 to the extent that the subsidiaries of ASUS are able to pay dividends in that amount to ASUS under applicable state laws.

Bank Debt

12 Months Ended

Dec. 31, 2019

Bank Debt

Bank Debt

AWR has access to a credit facility in order to provide funds to its subsidiaries, GSWC and ASUS, in support of their operations. In March 2019, AWR amended this credit facility to increase its borrowing capacity from $150.0 million to $200.0 million. In October 2019, AWR further amended the credit facility to temporarily increase its borrowing capacity to $225.0 million, effective until June 30, 2020, upon which the borrowing capacity reverts to $200.0 million. In February 2020, AWR received a binding commitment from its lender for the option to revise the temporary increase of the credit facility to $260.0 million through the end of 2020. AWR will be able to exercise this commitment and have immediate access to the additional funds when needed. On December 31, 2020, the borrowing capacity will revert to $200.0 million. At December 31, 2019, there was $205.0 million outstanding under the credit facility. Amounts due are generally priced off a spread to LIBOR. The aggregate effective amount that may be outstanding under letters of credit is $25.0 million. AWR has obtained letters of credit, primarily for GSWC, in the aggregate amount of $940,000, with fees of 0.65% including: (i) letters of credit in an aggregate amount of $340,000 as security for GSWC’s business automobile insurance policy; (ii) a letter of credit, in an amount of $585,000 as security for the purchase of power; and (iii) a $15,000 irrevocable letter of credit pursuant to a franchise agreement with the City of Rancho Cordova. Letters of credit outstanding reduce the amount that may be borrowed under the revolving credit facility. AWR is not required to maintain any compensating balances.

Loans may be obtained under this credit facility at the option of AWR and bear interest at rates based on credit ratings and Euro rate margins. In December 2019, Standard and Poor’s Global Ratings (“S&P”) affirmed an A+ credit rating with a stable outlook on both AWR and GSWC. S&P’s debt ratings range from AAA (highest possible) to D (obligation is in default). In May 2019, Moody's Investors Service ("Moody's") affirmed its A2 rating with a revised outlook from positive to stable for GSWC.

At times, AWR borrows under this facility and provides loans to its subsidiaries in support of their operations, on terms that are similar to that of the credit facility. AWR’s borrowing activities (excluding letters of credit) for the years ended December 31, 2019 and 2018 were as follows:



	December 31,
(in thousands, except percent)	2019			2018
Balance Outstanding at December 31,	$	205,000		$	95,500
Interest Rate at December 31,	2.44		%	3.19		%
Average Amount Outstanding	$	167,392		$	69,559
Weighted Average Annual Interest Rate	2.88		%	2.66		%
Maximum Amount Outstanding	$	205,500		$	95,500

All of the letters of credit are issued pursuant to the revolving credit facility. The revolving credit facility contains restrictions on prepayments, disposition of property, mergers, liens and negative pledges, indebtedness and guaranty obligations, transactions with affiliates, minimum interest coverage requirements, a maximum debt to capitalization ratio and a minimum debt rating. Pursuant to the credit agreement, AWR must maintain a minimum interest coverage ratio of 3.25 times interest expense, a maximum total funded debt ratio of 0.65 to 1.00 and a minimum Moody’s Investor Service or S&P debt

rating of Baa3 or BBB-, respectively. As of December 31, 2019, 2018 and 2017, AWR was in compliance with these requirements. As of December 31, 2019, AWR had an interest coverage ratio of 6.89 times interest expense, a debt ratio of 0.45 to 1.00 and a debt rating of A+ by S&P.

Long-Term Debt

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Long-Term Debt

Registrant’s long-term debt consists primarily of notes and debentures of GSWC. Registrant summarizes its long-term debt in the Statements of Capitalization. GSWC does not currently have any outstanding mortgages or other encumbrances on its properties.

In March of 2019, GSWC repaid $40 million of its 6.7% senior note, which matured in that month. GSWC increased its intercompany borrowings from AWR to fund the repayment of this note.

Each of the private placement notes issued by GSWC contain various restrictions. Private placement notes issued in the amount of $28 million due in 2031 contain restrictions on the payment of dividends, minimum interest coverage requirements, a maximum total indebtedness to capitalization ratio and a negative pledge. Pursuant to the terms of these notes, GSWC must maintain a minimum interest coverage ratio of two times interest expense. As of December 31, 2019, GSWC had an interest coverage ratio of over four times interest expense.

In December 2014, GSWC issued $15.0 million in 3.45% private placement senior notes due in 2029. In 2005, GSWC issued senior private placement notes due in 2028. Pursuant to the terms of these notes, GSWC must maintain a total indebtedness to capitalization ratio (as defined) of less than 0.6667-to-1 and a total indebtedness to earnings before income taxes, depreciation and amortization ("EBITDA") of less than 8-to-1. As of December 31, 2019, GSWC had a total indebtedness to capitalization ratio of 0.4445-to-1 and a total indebtedness to EBITDA of 3.1-to-1.

Certain long-term debt issues outstanding as of December 31, 2019 can be redeemed, in whole or in part, at the option of GSWC subject to redemption schedules embedded in the agreements particular to each redeemable issue. The 9.56% notes are subject to a make-whole premium based on 55 basis points above the applicable Treasury Yield if redeemed prior to 2021. After 2021, the maximum redemption premium is 3% of par value. The 5.87% senior note is subject to a make-whole premium based on the difference between the bank's cost of funds on the date of purchase and the bank's cost of funds on the date of redemption plus 0.5%. The $15.0 million, 3.45% senior notes due in 2029 have similar redemption premiums.

In October 2009, GSWC entered into an agreement with the California Department of Public Health (“CDPH”) whereby CDPH agreed to provide funds to GSWC of up to $9.0 million under the American Recovery and Reinvestment Act. Proceeds from the funds received were used to reimburse GSWC for capital costs incurred to install water meters to convert customers in GSWC’s Arden-Cordova district from non-metered service to metered service. GSWC received a total of $8.6 million in reimbursements from the CDPH, half of which was recorded as a contribution in aid of construction and the other half as long-term debt in accordance with the terms of the agreement. The loan portion bears interest at a rate of 2.5% and is payable over 20 years beginning in 2013. A surcharge to recover from customers the debt service cost on this loan was approved by the CPUC and implemented in 2013.

Annual maturities of all long-term debt at December 31, 2019 are as follows (in thousands):



2020	$	344
2021	365
2022	392
2023	406
2024	425
Thereafter	282,767
Total	$	284,699

Taxes on Income

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Taxes on Income

Registrant records deferred income taxes for temporary differences pursuant to the accounting guidance that addresses items recognized for income tax purposes in a different period from when these items are reported in the financial statements. These items include differences in net asset basis (primarily related to differences in depreciation lives and methods, and differences in capitalization methods) and the treatment of certain regulatory balancing accounts and construction contributions and advances. The accounting guidance for income taxes requires that rate-regulated enterprises record deferred income taxes and offsetting regulatory liabilities and assets for temporary differences where the rate regulator has prescribed flow-through treatment for ratemaking purposes (Note 3). Deferred investment tax credits (“ITC”) are amortized ratably to deferred tax expense over the remaining lives of the property that gave rise to these credits.

GSWC is included in both AWR’s consolidated federal income tax and its combined California state franchise tax returns. The impact of California’s unitary apportionment on the amount of AWR’s California income tax liability is a function of both the profitability of AWR’s non-California activities and the proportion of AWR’s California sales to its total sales. GSWC’s income tax expense is computed as if GSWC were autonomous and separately files its income tax returns, which is consistent with the method adopted by the CPUC in setting GSWC’s customer rates.

On December 22, 2017, the Tax Cuts and Jobs Act (the "Tax Act") was signed into federal law. The provisions of this major tax reform were generally effective on January 1, 2018. Among its significant provisions, the Tax Act (i) reduced the federal corporate income tax rate from 35% to 21%; (ii) eliminated bonus depreciation for regulated utilities, while allowing 100% expensing for the cost of qualified property for non-regulated businesses; (iii) eliminated the provision that treated contributions in aid of construction provided to regulated water utilities as non-taxable; (iv) eliminated the domestic production activities deduction, and (v) limits the amount of net interest that can be deducted; however, this limitation is not applicable to regulated utilities and, therefore has not had, nor is it anticipated to have, a material impact to Registrant’s ability to deduct net interest.

Pursuant to ASC Topic 740, "Income Taxes", the effects of changes in tax laws must be recognized within the period in which the tax law is enacted. This required AWR and GSWC to record an adjustment in its 2017 financial statements to reflect the impact of the reduction in the corporate income tax rate from 35% to 21% on its cumulative deferred income-tax balances and its tax-related regulatory assets/liabilities. The remeasurement of Registrant’s deferred income-tax balances and its tax-related regulatory assets/liabilities did not have a significant impact to Registrant's consolidated results of operations in 2017 since the majority of the remeasurement was related to GSWC’s rate-regulated activities and was offset by a corresponding increase to a regulatory liability (Note 3). There were no material updates during the year ended December 31, 2018 to the remeasurement of Registrant's deferred income-tax balances and its tax-related regulatory assets/liabilities in accordance with Staff Accounting Bulletin 118.

The significant components of the deferred tax assets and liabilities as reflected in the balance sheets at December 31, 2019 and 2018 are:



	AWR						GSWC
	December 31,						December 31,
(dollars in thousands)	2019			2018			2019			2018
Deferred tax assets:
Regulatory-liability-related (1)	$	33,080		$	33,419		$	33,080		$	33,419
Contributions and advances	5,777			5,281			6,158			5,666
Other	5,792			2,988			6,618			3,310
Total deferred tax assets	$	44,649		$	41,688		$	45,856		$	42,395
Deferred tax liabilities:
Fixed assets	$	(144,444	)	$	(131,413	)	$	(147,759	)	$	(135,617	)
Regulatory-asset-related: depreciation and other	(20,641		)	(18,146		)	(20,641		)	(18,146		)
Balancing and memorandum accounts (non-flow-through)	(4,868		)	(6,325		)	(5,262		)	(6,873		)
Total deferred tax liabilities	(169,953		)	(155,884		)	(173,662		)	(160,636		)
Accumulated deferred income taxes - net	$	(125,304	)	$	(114,196	)	$	(127,806	)	$	(118,241	)

(1) Primarily represents the gross-up portion of the deferred income tax (on the excess-deferred-tax regulatory liability) brought about by the Tax Act’s reduction in the federal income tax rate.

The current and deferred components of income tax expense are as follows:



	AWR
	Year Ended December 31,
(dollars in thousands)	2019		2018			2017
Current
Federal	$	12,507	$	17,252		$	20,978
State	5,540		6,538			5,844
Total current tax expense	$	18,047	$	23,790		$	26,822
Deferred
Federal	$	6,407	$	(4,334	)	$	11,543
State	216		(1,439		)	609
Total deferred tax (benefit) expense	6,623		(5,773		)	12,152
Total income tax expense	$	24,670	$	18,017		$	38,974



	GSWC
	Year Ended December 31,
(dollars in thousands)	2019		2018			2017
Current
Federal	$	9,616	$	14,488		$	15,044
State	5,480		5,932			5,045
Total current tax expense	$	15,096	$	20,420		$	20,089
Deferred
Federal	$	4,924	$	(5,531	)	$	11,770
State	157		(1,286		)	2,200
Total deferred tax (benefit) expense	5,081		(6,817		)	13,970
Total income tax expense	$	20,177	$	13,603		$	34,059

The AWR and GSWC effective tax rates differ from the federal statutory tax rate primarily due to (i) state taxes; (ii) permanent differences including the excess tax benefits from share-based payments, which were reflected in the income statements and resulted in a reduction to income tax expense; (iii) amortization, commencing in 2018, of the excess deferred income tax liability brought about by the lower federal corporate income tax rate, and (iv) differences between book and taxable income that are treated as flow-through adjustments in accordance with regulatory requirements (principally from plant, rate-case, and compensation expenses). As a regulated utility, GSWC treats certain temporary differences as flow-through in computing its income tax expense consistent with the income tax method used in its CPUC-jurisdiction ratemaking. Flow-through items either increase or decrease tax expense and thus impact the ETR. The reconciliations of the effective tax rates to the federal statutory rate are as follows:



	AWR
	Year Ended December 31,
(dollars in thousands)	2019			2018			2017
Federal taxes on pretax income at statutory rate (21% in 2019 and 2018; 35% in 2017)	$	22,872		$	17,196		$	37,919
Increase (decrease) in taxes resulting from:
State income tax, net of federal benefit	4,758			3,693			4,382
Change in tax rate	—			(14		)	(82		)
Excess deferred tax amortization	(1,579		)	(2,101		)	—
Flow-through on fixed assets	1,244			429			845
Flow-through on removal costs	(1,582		)	(1,445		)	(1,980		)
Domestic production activities deduction	—			(26		)	(1,421		)
Investment tax credit	(71		)	(69		)	(93		)
Other – net	(972		)	354			(596		)
Total income tax expense from operations	$	24,670		$	18,017		$	38,974
Pretax income from operations	$	109,012		$	81,888		$	108,341
Effective income tax rate	22.6		%	22.0		%	36.0		%



	GSWC
	Year Ended December 31,
(dollars in thousands)	2019			2018			2017
Federal taxes on pretax income at statutory rate (21% in 2019 and 2018; 35% in 2017)	$	18,236		$	12,939		$	30,736
Increase (decrease) in taxes resulting from:
State income tax, net of federal benefit	4,656			3,335			4,924
Change in tax rate	—			—			1,063
Excess deferred tax amortization	(1,579		)	(2,101		)	—
Flow-through on fixed assets	1,244			429			845
Flow-through on removal costs	(1,582		)	(1,445		)	(1,980		)
Domestic production activities deduction	—			(25		)	(1,148		)
Investment tax credit	(71		)	(69		)	(93		)
Other – net	(727		)	540			(288		)
Total income tax expense from operations	$	20,177		$	13,603		$	34,059
Pretax income from operations	$	86,840		$	61,615		$	87,816
Effective income tax rate	23.2		%	22.1		%	38.8		%

AWR and GSWC had no unrecognized tax benefits at December 31, 2019, 2018 and 2017.

Registrant’s policy is to classify interest on income tax over/underpayments in interest income/expense and penalties in “other operating expenses.” Registrant did not have any material interest receivables/payables from/to taxing authorities as of December 31, 2019 and 2018, nor did it recognize any material interest income/expense or accrue any material tax-related penalties during the years ended December 31, 2019, 2018 and 2017.

Registrant files federal, California and various other state income tax returns. AWR's 2016 - 2018 tax years remain subject to examination by the Internal Revenue Service. AWR filed refund claims with the California Franchise Tax Board ("FTB") for the 2002 through 2008 tax years in connection with the matters reflected on the federal refund claims along with other state tax items. In the first quarter of 2017, the FTB issued a refund to AWR for the 2002 - 2004 claims of approximately $2.2 million. The FTB continues to review the 2005 - 2008 refund claims. The 2009 - 2018 tax years remain subject to examination by the FTB.

Employee Benefit Plans

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Employee Benefit Plans

Pension and Post-Retirement Medical Plans:

Registrant maintains a defined benefit pension plan (the “Pension Plan”) that provides eligible employees (those aged 21 and older, hired before January 1, 2011) monthly benefits upon retirement based on average salaries and length of service. The eligibility requirement to begin receiving these benefits is 5 years of vested service. The normal retirement benefit is equal to 2% of the 5 highest consecutive years’ average earnings multiplied by the number of years of credited service, up to a maximum of 40, reduced by a percentage of primary Social Security benefits. There is also an early retirement option. Annual contributions are made to the Pension Plan, which comply with the funding requirements of the Employee Retirement Income Security Act (“ERISA”). At December 31, 2019, Registrant had 939 participants in the Pension Plan.

Employees hired or rehired after December 31, 2010 are eligible to participate in a defined contribution plan. Registrant's existing 401(k) Investment Incentive Program was amended to include this defined contribution plan. Under this plan, Registrant provides a contribution ranging from 3% to 5.25% of eligible pay each pay period into investment vehicles offered by the plan’s trustee. Full vesting under this plan occurs upon 3 years of service. Employees hired before January 1, 2011 continue to participate in and accrue benefits under the terms of the Pension Plan.

Registrant also provides post-retirement medical benefits for all active employees hired before February of 1995 through a medical insurance plan. Eligible employees, who retire prior to age 65, and/or their spouses, are able to retain the benefits under the plan for active employees until reaching age 65. Eligible employees upon reaching age 65, and those eligible employees retiring at or after age 65, and/or their spouses, receive coverage through a Medicare supplement insurance policy paid for by Registrant subject to an annual cap limit. Registrant’s post-retirement medical plan does not provide prescription drug benefits to Medicare-eligible employees and is not affected by the Medicare Prescription Drug Improvement and Modernization Act of 2003.

In accordance with the accounting guidance for the effects of certain types of regulation, Registrant has established a regulatory asset for its underfunded position in its pension and post-retirement medical plans that is expected to be recovered through rates in future periods. The changes in actuarial gains and losses, prior service costs and transition assets or obligations pertaining to the regulatory asset are recognized as an adjustment to the regulatory asset account as these amounts are recognized as components of net periodic pension costs each year and in the rate-making process.

The following table sets forth the Pension Plan’s and post-retirement medical plan’s funded status and amounts recognized in Registrant’s balance sheets and the components of net pension cost and accrued liability at December 31, 2019 and 2018:



	Pension Benefits						Post-Retirement Medical Benefits
(dollars in thousands)	2019			2018			2019			2018
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year	$	196,082		$	207,690		$	7,886		$	8,491
Service cost	4,441			5,342			186			218
Interest cost	8,527			7,646			285			292
Plan amendment	—			3,626			—			—
Actuarial (gain) loss	29,784			(21,717		)	(538		)	(701		)
Benefits/expenses paid	(6,982		)	(6,505		)	(424		)	(414		)
Projected benefit obligation at end of year	$	231,852		$	196,082		$	7,395		$	7,886

Changes in Plan Assets:
Fair value of plan assets at beginning of year	$	162,529		$	173,648		$	10,010		$	11,053
Actual return on plan assets	33,018			(10,626		)	1,685			(629		)
Employer contributions	3,913			6,012			170			—
Benefits/expenses paid	(6,983		)	(6,505		)	(594		)	(414		)
Fair value of plan assets at end of year	$	192,477		$	162,529		$	11,271		$	10,010

Funded Status:
Net amount recognized as accrued pension cost	$	(39,375	)	$	(33,553	)	$	3,876		$	2,124



	Pension Benefits						Post-Retirement Medical Benefits
(dollars in thousands)	2019			2018			2019			2018
Amounts recognized on the balance sheets:
Non-current assets	$	—		$	—		$	3,876		$	2,124
Current liabilities	—			—			—			—
Non-current liabilities	(39,375		)	(33,553		)	—			—
Net amount recognized	$	(39,375	)	$	(33,553	)	$	3,876		$	2,124
Amounts recognized in regulatory assets consist of:
Prior service cost (credit)	$	3,191		$	3,626		$	—		$	—
Net (gain) loss	37,309			31,587			(5,432		)	(4,459		)
Regulatory assets (liabilities)	40,500			35,213			(5,432		)	(4,459		)
Unfunded accrued pension cost	(1,125		)	(1,660		)	1,556			2,335
Net liability (asset) recognized	$	39,375		$	33,553		$	(3,876	)	$	(2,124	)

Changes in plan assets and benefit obligations recognized in regulatory assets:
Regulatory asset at beginning of year	$	35,213		$	32,761		$	(4,459	)	$	(5,650	)
Net loss (gain)	7,140			81			(1,775		)	421
New prior service cost	—			3,626			—			—
Amortization of prior service (cost) credit	(434		)	—			—			—
Amortization of net gain (loss)	(1,419		)	(1,255		)	802			770
Total change in regulatory asset	5,287			2,452			(973		)	1,191
Regulatory asset (liability) at end of year	$	40,500		$	35,213		$	(5,432	)	$	(4,459	)

Net periodic pension costs	$	4,447		$	3,070		$	(779	)	$	(752	)
Change in regulatory asset	5,287			2,452			(973		)	1,191
Total recognized in net periodic pension cost and regulatory asset (liability)	$	9,734		$	5,522		$	(1,752	)	$	439

Estimated amounts that will be amortized from regulatory asset over the next fiscal year:
Prior service (cost) credit	$	(434	)	$	(434	)	$	—		$	—
Net gain (loss)	$	(1,768	)	$	(1,435	)	$	796		$	598

Additional year-end information for plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	$	231,852		$	196,082		$	7,395		$	7,886
Accumulated benefit obligation	$	215,996		$	183,036		N/A			N/A
Fair value of plan assets	$	192,477		$	162,529		$	11,271		$	10,010

Weighted-average assumptions used to determine benefit obligations at December 31:
Discount rate	3.43		%	4.43		%	3.12		%	4.20		%
Rate of compensation increase	*			*			N/A			N/A

* Age-graded ranging from 3.0% to 8.0%.

The components of net periodic pension and post-retirement benefits cost, before allocation to the overhead pool, for 2019, 2018 and 2017 are as follows:



	Pension Benefits									Post-Retirement Medical Benefits
(dollars in thousands, except percent)	2019			2018			2017			2019			2018			2017
Components of Net Periodic Benefits Cost:
Service cost	$	4,441		$	5,342		$	4,999		$	186		$	218		$	227
Interest cost	8,527			7,646			7,904			285			292			324
Expected return on plan assets	(10,374		)	(11,172		)	(9,705		)	(449		)	(493		)	(466		)
Amortization of prior service cost (credit)	434			—			—			—			—			—
Amortization of actuarial (gain) loss	1,419			1,254			923			(801		)	(769		)	(775		)
Net periodic pension cost under accounting standards	$	4,447		$	3,070		$	4,121		$	(779	)	$	(752	)	$	(690	)
Regulatory adjustment	(593		)	—			465			—			—			—
Total expense recognized, before surcharges and allocation to overhead pool	$	3,854		$	3,070		$	4,586		$	(779	)	$	(752	)	$	(690	)

Weighted-average assumptions used to determine net periodic cost:
Discount rate	4.43		%	3.76		%	4.44		%	4.20		%	3.52		%	3.97		%
Expected long-term return on plan assets	6.50		%	6.50		%	6.50		%	*			*			*
Rate of compensation increase	**			**			**			N/A			N/A			N/A

*6.0% for union plan and 4.2% for non-union (net of income taxes) in 2019, 2018 and 2017.

** Age-graded ranging from 3.0% to 8.0%.

Regulatory Adjustment:

The CPUC authorized GSWC to track differences between the forecasted annual pension expenses adopted in rates for its water and electric regions and the general office and the actual annual expense to be recorded by GSWC in accordance with the accounting guidance for pension costs. During the year ended December 31, 2019, GSWC's actual expense was higher than the amounts included in customer rates by $593,000. In 2018 and 2017, GSWC's actual expense was lower than the amounts included in water and electric customer rates (including surcharges) by $1.7 million and $583,000, respectively. In 2017 the annual over-collections were used to recover previously incurred under-collections. The cumulative amounts recorded in the two-way pension balancing accounts are included within the pensions and other post-retirement obligations regulatory assets discussed in Note 3. As of December 31, 2019, the two-way pension balancing accounts had a $2.7 million cumulative net over-collection included within regulatory assets.

Plan Funded Status:

The Pension Plan was underfunded at December 31, 2019 and 2018. Registrant’s market related value of plan assets is equal to the fair value of plan assets. Past volatile market conditions have affected the value of GSWC’s trust established to fund its future long-term pension benefits. These benefit plan assets and related obligations are measured annually using a December 31 measurement date. Changes in the Pension Plan’s funded status will affect the assets and liabilities recorded on the balance sheet in accordance with accounting guidance on employers’ accounting for defined benefit pension and other post-retirement plans. Due to Registrant’s regulatory recovery treatment, the recognition of the underfunded status for the Pension Plan has been offset by a regulatory asset pursuant to guidance on the accounting for the effects of certain types of regulation.

Plan Assets:

The assets of the pension and post-retirement medical plans are managed by a third party trustee. The investment policy allocation of the assets in the trust was approved by Registrant’s Administrative Committee (the “Committee”) for the pension and post-retirement medical funds, which has oversight responsibility for all retirement plans. The primary objectives underlying the investment of the pension and post-retirement plan assets are: (i) attempt to maintain a fully funded status with a cushion for unexpected developments, possible future increases in expense levels and/or a reduction in the expected return on investments; (ii) seek to earn long-term returns that compare favorably to appropriate market indexes, peer group universes and the policy asset allocation index; (iii) seek to provide sufficient liquidity to pay current benefits and expenses; (iv) attempt to limit risk exposure through prudent diversification; and (v) seek to limit costs of administering and managing the plans.

The Committee recognizes that risk and volatility are present to some degree with all types of investments. High levels of risk may be avoided through diversification by asset class, style of each investment manager and sector and industry limits. Investment managers are retained to manage a pool of assets and allocate funds in order to achieve an appropriate, diversified and balanced asset mix. The Committee’s strategy balances the requirement to maximize returns using potentially higher-return generating assets, such as equity securities, with the need to control the risk of its benefit obligations with less volatile assets, such as fixed-income securities.

The Committee approves the target asset allocations. Registrant’s pension and post-retirement plan weighted-average asset allocations at December 31, 2019 and 2018, by asset category are as follows:



	Pension Benefits				Post-Retirement Medical Benefits
Asset Category	2019		2018		2019		2018
Actual Asset Allocations:
Equity securities	56	%	53	%	61	%	59	%
Debt securities	39	%	43	%	38	%	39	%
Real Estate Funds	5	%	4	%	—	%	—	%
Cash equivalents	—	%	—	%	1	%	2	%
Total	100	%	100	%	100	%	100	%

Equity securities did not include AWR’s Common Shares as of December 31, 2019 and 2018.



Target Asset Allocations for 2019:	Pension Benefits		Post-retirement Medical Benefits
Equity securities	60	%	60	%
Debt securities	40	%	40	%
Total	100	%	100	%

The Pension Plan assets are in collective trust funds managed by a management firm appointed by the Committee. The fair value of these collective trust funds is measured using net asset value per share. In accordance with ASU 2015-07 Disclosures for Investments in Certain Entities that Calculate Net Asset Value per Share (or Its Equivalents), the fair value of the collective trust funds is not categorized in the fair value hierarchy as of December 31, 2019 and 2018.

The following tables set forth the fair value, measured by net asset value, of the pension investment assets as of December 31, 2019 and 2018:



	Net Asset Value as of December 31, 2019
(dollars in thousands)	Fair Value		Unfunded Commitments	Redemption Frequency	Redemption Notice Period
Cash equivalents	$	600	—	N/A	N/A
Fixed income fund	74,123		—	Daily	Daily
Equity securities:
U.S. small/mid cap funds	17,865		—	Daily	Daily
U.S. large cap funds	47,132		—	Daily	Daily
International funds	43,778		—	Daily	Daily
Total equity funds	108,775		—
Real estate funds	8,979		—	Daily	Daily
Total	$	192,477	—



	Net Asset Value as of December 31, 2018
(dollars in thousands)	Fair Value		Unfunded Commitments	Redemption Frequency	Redemption Notice Period
Cash equivalents	$	590	—	N/A	N/A
Fixed income fund	70,642		—	Daily	Daily
Equity securities:
U.S. small/mid cap funds	22,313		—	Daily	Daily
U.S. large cap funds	46,133		—	Daily	Daily
International funds	15,548		—	Daily	Daily
Total equity funds	83,994
Real estate funds	7,303		—	Daily	Daily
Total	$	162,529	—

The collective trust funds may be invested or redeemed daily, and generally do not have any significant restrictions to redeem the investments.

As previously discussed in Note 1, the accounting guidance for fair value measurements establishes a framework for measuring fair value and requires fair value measurements to be classified and disclosed in one of three levels. As required by the accounting guidance, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. All equity investments in the post-retirement medical plan are Level 1 investments in mutual funds. The fixed income category includes corporate bonds and notes. The majority of fixed income investments range in maturities from less than 1 to 20 years. The fair values of these investments are based on quoted market prices in active markets.

The following tables set forth by level, within the fair value hierarchy, the post-retirement plan's investment assets measured at fair value as of December 31, 2019 and 2018:



	Fair Value as of December 31, 2019
(dollars in thousands)	Level 1		Level 2	Level 3	Total
Fair Value of Post-Retirement Plan Assets:
Cash equivalents	$	69	—	—	$	69
Fixed income	4,279		—	—	4,279
U.S. equity securities	6,923		—	—	6,923
Total investments measured at fair value	$	11,271	—	—	$	11,271



	Fair Value as of December 31, 2018
(dollars in thousands)	Level 1		Level 2	Level 3	Total
Fair Value of Post-Retirement Plan Assets:
Cash equivalents	$	263	—	—	$	263
Fixed income	3,871		—	—	3,871
U.S. equity securities	5,876		—	—	5,876
Total investments measured at fair value	$	10,010	—	—	$	10,010

Plan Contributions:

During 2019, Registrant contributed $3.9 million to its pension plan and did not make a contribution to the post-retirement medical plan. Registrant expects to contribute approximately $3.3 million to its pension plan in 2020. Registrant’s policy is to fund the plans annually at a level which is deductible for income tax purposes and is consistent with amounts recovered in customer rates.

Benefit Payments:

Estimated future benefit payments at December 31, 2019 for the next five years and thereafter are as follows (in thousands):



	Pension Benefits		Post-Retirement Medical Benefits
2020	$	7,910	$	526
2021	8,574		599
2022	9,263		642
2023	9,839		677
2024	10,441		652
Thereafter	60,621		2,607
Total	$	106,648	$	5,703

Assumptions:

Certain actuarial assumptions, such as the discount rate, long-term rate of return on plan assets, mortality, and the healthcare cost trend rate have a significant effect on the amounts reported for net periodic benefit cost as well as the related benefit obligation amounts.

Discount Rate — The assumed discount rate for pension and post-retirement medical plans reflects the market rates for high-quality corporate bonds currently available. Registrant’s discount rates were determined by considering the average of pension yield curves constructed of a large population of high quality corporate bonds. The resulting discount rate reflects the matching of plan liability cash flows to the yield curves.

Expected Long-Term Rate of Return on Assets — The long-term rate of return on plan assets represents an estimate of long-term returns on an investment portfolio consisting of a mixture of equities, fixed income and other investments. To develop the expected long-term rate of return on assets assumption for the pension plan, Registrant considered the historical returns and the future expectations for returns for each asset class, as well as the target asset allocation of the pension portfolio. Registrant’s policy is to fund the medical benefit trusts based on actuarially determined amounts as allowed in rates approved by the CPUC. Registrant has invested the funds in the post-retirement trusts that will achieve a desired return and minimize amounts necessary to recover through rates. The mix is expected to provide for a return on assets similar to the Pension Plan and to achieve Registrant’s targeted allocation. This resulted in the selection of the 6.0% long-term rate of return on assets assumption for the union plan and 4.2% (net of income taxes) for the non-union plan portion of the post-retirement plan.

Mortality — Mortality assumptions are a critical component of benefit obligation amounts and a key factor in determining the expected length of time for annuity payments. Registrant uses the latest mortality tables published by the Society of Actuaries. Accordingly, the benefit obligation amounts as of December 31, 2019 and 2018 have incorporated recent updates to the mortality tables.

Healthcare Cost Trend Rate — The assumed health care cost trend rate for 2020 starts at 5.9% grading down to 4.4% in 2035 for those under age 65, and at 5.0% grading down to 4.2% in 2025 for those 65 and over. Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plans. A one-percentage-point change in assumed health care cost trend rates would have the following effects on the post-retirement medical plan:



(dollars in thousands)	1-Percentage-Point Increase		1-Percentage-Point Decrease
Effect on total of service and interest cost components	$	34	$	(29	)
Effect on post-retirement benefit obligation	$	749	$	(645	)

Supplemental Executive Retirement Plan:

Registrant has a supplemental executive retirement plan (“SERP”) that is intended to restore retirement benefits to certain key employees and officers of Registrant that are limited by Sections 415 and 401(a)(17) of the Internal Revenue Code of 1986, as amended. The Board of Directors approved the establishment of a Rabbi Trust created for the SERP. Assets in a Rabbi Trust can be subject to the claims of creditors; therefore, they are not considered as an asset for purposes of computing the SERP’s funded status. As of December 31, 2019, the balance in the Rabbi Trust totaled $21.6 million and is included in Registrant’s other property and investments.

All equity investments in the Rabbi Trust are Level 1 investments in mutual funds. The fixed income category includes corporate bonds and notes. The fair values of these investments are based on quoted market prices in active markets.

The following tables set forth by level, within the fair value hierarchy, the Rabbi Trust investment assets measured at fair value as of December 31, 2019 and 2018:



	Fair Value as of December 31, 2019
(dollars in thousands)	Level 1		Level 2	Level 3	Total
Fair Value of Assets held in Rabbi Trust:
Cash equivalents	$	72	—	—	$	72
Fixed income securities	8,427		—	—	8,427
Equity securities	13,054		—	—	13,054
Total investments measured at fair value	$	21,553	—	—	$	21,553



	Fair Value as of December 31, 2018
(dollars in thousands)	Level 1		Level 2	Level 3	Total
Fair Value of Assets held in Rabbi Trust:
Cash equivalents	$	166	—	—	$	166
Fixed income securities	6,251		—	—	6,251
Equity securities	9,995		—	—	9,995
Total investments measured at fair value	$	16,412	—	—	$	16,412

The following provides a reconciliation of benefit obligations, funded status of the SERP, as well as a summary of significant estimates at December 31, 2019 and 2018:



(dollars in thousands)	2019			2018
Change in Benefit Obligation:
Benefit obligation at beginning of year	$	24,517		$	24,062
Service cost	1,193			1,096
Interest cost	1,069			888
Actuarial (gain) loss	3,419			(1,104		)
Benefits paid	(495		)	(425		)
Benefit obligation at end of year	$	29,703		$	24,517
Changes in Plan Assets:
Fair value of plan assets at beginning and end of year	—			—
Funded Status:
Net amount recognized as accrued cost	$	(29,703	)	$	(24,517	)



(in thousands)	2019			2018
Amounts recognized on the balance sheets:
Current liabilities	$	(609	)	$	(433	)
Non-current liabilities	(29,094		)	(24,084		)
Net amount recognized	$	(29,703	)	$	(24,517	)
Amounts recognized in regulatory assets consist of:
Prior service cost	$	—		$	—
Net loss	8,352			5,403
Regulatory assets	8,352			5,403
Unfunded accrued cost	21,351			19,114
Net liability recognized	$	29,703		$	24,517

Changes in plan assets and benefit obligations recognized in regulatory assets consist of:
Regulatory asset at beginning of year	$	5,403		$	7,556
Net (gain) loss	3,419			(1,104		)
Amortization of prior service credit	—			—
Amortization of net loss	(470		)	(1,049		)
Total change in regulatory asset	2,949			(2,153		)
Regulatory asset at end of year	$	8,352		$	5,403

Net periodic pension cost	$	2,733		$	3,033
Change in regulatory asset	2,949			(2,153		)
Total recognized in net periodic pension and regulatory asset	$	5,682		$	880

Estimated amounts that will be amortized from regulatory asset over the next fiscal year:
Initial net asset (obligation)	$	—		$	—
Prior service cost	—			—
Net loss	(844		)	(471		)
Additional year-end information for plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	$	29,703		$	24,517
Accumulated benefit obligation	26,251			21,229
Fair value of plan assets	—			—
Weighted-average assumptions used to determine benefit obligations:
Discount rate	3.36		%	4.40		%
Rate of compensation increase	4.00		%	4.00		%

The components of SERP expense, before allocation to the overhead pool, for 2019, 2018 and 2017 are as follows:



(dollars in thousands, except percent)	2019			2018			2017
Components of Net Periodic Benefits Cost:
Service cost	$	1,193		$	1,096		$	930
Interest cost	1,069			888			893
Amortization of prior service cost	—			—			12
Amortization of net loss	471			1,049			777
Net periodic pension cost	$	2,733		$	3,033		$	2,612

Weighted-average assumptions used to determine net periodic cost:
Discount rate	4.40		%	3.72		%	4.34		%
Rate of compensation increase	4.00		%	4.00		%	4.00		%

Benefit Payments: Estimated future benefit payments for the SERP at December 31, 2019 for the next five years and thereafter are as follows (in thousands):



2020	$	609
2021	830
2022	932
2023	1,624
2024	1,704
Thereafter	10,117
Total	$	15,816

401(k) Investment Incentive Program:

Registrant has a 401(k) Investment Incentive Program under which employees may invest a percentage of their pay, up to a maximum investment prescribed by law, in an investment program managed by an outside investment manager. Registrant’s cash contributions to the 401(k) are based upon a percentage of individual employee contributions and for the years ended December 31, 2019, 2018 and 2017 were $2.5 million, $2.4 million and $2.3 million, respectively. The Investment Incentive Program also incorporates the defined contribution plan for employees hired on or after January 1, 2011. The cash contributions to the defined contribution plan for the years ended December 31, 2019, 2018 and 2017 were $1.6 million, $1.3 million and $1.1 million, respectively.

Stock-Based Compensation Plans

12 Months Ended

Dec. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Plans

Summary Description of Stock Incentive Plans

As of December 31, 2019, AWR has three active stock incentive plans: the 2016 stock incentive plan for its employees, and the 2003 and 2013 non-employee directors plans for its Board of Directors, each more fully described below.

2016 Employee Plans — AWR adopted this employee plan, following shareholder approval, to provide stock-based incentive awards in the form of restricted stock units, stock options and restricted stock to employees as a means of promoting the success of Registrant by attracting, retaining and more fully aligning the interests of employees with those of customers and shareholders. The 2016 employee plan also provides for the grant of performance awards. There are no stock options or restricted stock grants currently outstanding. For restricted stock unit awards, the Compensation Committee determines the specific terms, conditions and provisions relating to each restricted stock unit. Each employee who has been granted a time-vested restricted stock unit is entitled to dividend equivalent rights in the form of additional restricted stock units until vesting of the time-vested restricted stock units. In general, time-vested restricted stock units vest over a period of 3 years. Restricted stock units may also vest upon retirement if the grantee is at least 55 and the sum of the grantee's age and years of service are equal to or greater than 75, or upon death or total disability. In addition, restricted stock units may vest following a change in control if the Company terminates the grantee other than for cause or the employee terminates employment for good reason. Each restricted stock unit is non-voting and entitles the holder of the restricted stock unit to receive one Common Share.

The Compensation Committee also has the authority to determine the number, amount or value of performance awards, the duration of the performance period or performance periods applicable to the award and the performance criteria applicable to each performance award for each performance period. Each outstanding performance award granted by the Compensation Committee has been in the form of restricted stock units that generally vest over a period of three years as provided in the performance award agreement. The amount of the performance award paid to an employee depends upon satisfaction of performance criteria following the end of a three-year performance period. Performance awards may also vest and be payable upon retirement if the grantee is at least 55 and the sum of the grantee's age and years of service are equal to or greater than 75, or upon death or total disability. In addition, performance awards may vest following a change in control if the Company terminates the grantee other than for cause or the employee terminates employment for good reason. The amount of the payment for performance awards granted will be at target in the event of death or a termination of employment (other than for cause) by the Company or termination by the employee for good reason within 24 months after a change in control. In all other circumstances, adjustments will be made to the amount of the payment to take into account the shortened performance period

2003 and 2013 Directors Plans — The Board of Directors and shareholders of AWR have approved the 2003 and 2013 directors plans in order to provide the non-employee directors with supplemental stock-based compensation to encourage them to increase their stock ownership in AWR. Grants may not be made under the 2003 directors plan. Non-employee directors are entitled to receive restricted stock units in an amount determined by the Board of Directors. This amount may not exceed two times the annual retainer paid to directors. Effective for grants of restricted stock units to non-employee directors after 2012, such units are convertible to AWR's Common Shares 90 days after the grant date.

All non-employee directors of AWR who were directors of AWR at the 2003 annual meeting have also received restricted stock units, which will be distributed upon termination of the director's service as a director.

All restricted stock units and performance awards have been granted with dividend equivalent rights payable in the form of additional restricted stock units.

Recognition of Compensation Expense

Registrant recognizes compensation expense related to the fair value of stock-based compensation awards. Share-based compensation cost is measured at the grant date, based on the calculated fair value of the award, and is recognized as an expense over the employee’s requisite service period (generally the vesting period of the equity grant). Immediate vesting occurs if the employee is at least 55 years old and the sum of the employee’s age and years of employment is equal to or greater than 75. Registrant assumes that pre-vesting forfeitures will be minimal, and recognizes pre-vesting forfeitures as they occur, which results in a reduction in compensation expense.

The following table presents share-based compensation expenses for the years ended December 31, 2019, 2018 and 2017. These expenses resulting from restricted stock units, including performance awards, are included in administrative and general expenses in AWR's and GSWC’s statements of income:



	AWR						GSWC
	For The Years Ended December 31,						For The Years Ended December 31,
(in thousands)	2019		2018		2017		2019		2018		2017
Stock-based compensation related to:
Restricted stock units	$	2,517	$	3,851	$	2,885	$	2,253	$	3,397	$	2,420
Total stock-based compensation expense	$	2,517	$	3,851	$	2,885	$	2,253	$	3,397	$	2,420

Equity-based compensation cost capitalized as part of GSWC's utility plant for the years ended December 31, 2019, 2018 and 2017 was $265,000, $199,000 and $195,000, respectively, for both AWR and GSWC. For the years ended December 31, 2019, 2018 and 2017, AWR recorded approximately $1.8 million, $1.6 million and $1.0 million, respectively, of tax benefits from stock-based awards. For the years ended December 31, 2019, 2018 and 2017, GSWC recorded approximately $1.8 million, $1.6 million and $1.0 million, respectively, of tax benefits from stock-based awards.

Registrant amortizes stock-based compensation over the requisite (vesting) period for the entire award. Time-vesting restricted stock units vest and become nonforfeitable in installments of 33% the first two years and 34% in the third year, starting one year from the date of the grant. Outstanding performance awards vest and become nonforfeitable in installments of 33% the first two years and 34% in the third year and are distributed at the end of the performance period if the performance criteria set forth in the award agreement are satisfied.

Restricted Stock Units (Time-Vested) — A restricted stock unit (“RSU”) represents the right to receive a share of AWR’s Common Shares and are valued based on the fair market value of AWR's Common Shares on the date of grant. The fair value of RSUs were determined based on the closing trading price of Common Shares on the grant date. A summary of the status of Registrant’s outstanding RSUs, excluding performance awards, to employees and directors as of December 31, 2019, and changes during the year ended December 31, 2019, is presented below:



	Number of Restricted Share Units		Weighted Average Grant-Date Value
Restricted share units at January 1, 2019	102,235		$	34.73
Granted	23,550		67.57
Vested	(48,017	)	30.99
Forfeited	(2,697	)	48.64
Restricted share units at December 31, 2019	75,071		$	46.92

As of December 31, 2019, there was approximately $390,000 of total unrecognized compensation cost related to time-vested restricted stock units granted under AWR’s employee stock plans. That cost is expected to be recognized over a weighted average period of 1.55 years.

Restricted Stock Units (Performance Awards) – During the years ended December 31, 2019, 2018 and 2017, the Compensation Committee granted performance awards in the form of restricted stock units to officers of the Registrant. A performance award represents the right to receive a share of AWR's Common Shares if specified performance goals are met over the performance period specified in the grant (generally three years). Each grantee of any outstanding performance award may earn between 0% and 200% of the target amount depending on Registrant's performance against performance goals, which are determined by the Compensation Committee on the date of grant. As determined by the Compensation Committee, the performance awards granted during the years ended December 31, 2019, 2018 and 2017 included various performance-based conditions and one market-based condition related to total shareholder return ("TSR") that will be earned based on Registrant’s TSR compared to the TSR for a specific peer group of investor-owned water companies.

A summary of the status of Registrant’s outstanding performance awards to officers as of December 31, 2019, and changes during the year ended December 31, 2019, is presented below:



	Number of Performance awards		Weighted Average Grant-Date Value
Performance awards at January 1, 2019	95,661		$	45.36
Granted	22,035		65.86
Performance criteria adjustment	1,772		38.14
Vested	(33,080	)	41.15
Forfeited	(1,739	)	61.74
Performance awards at December 31, 2019	84,649		$	51.85

A portion of the fair value of performance awards was estimated at the grant date based on the probability of satisfying the market-based condition using a Monte-Carlo simulation model, which assesses the probabilities of various outcomes of the market condition. The portion of the fair value of the performance awards associated with performance-based conditions was based on the fair market value of AWR's Common Shares at the grant date. The fair value of each outstanding performance award grant is amortized into compensation expense in installments of 33% the first two years and 34% in the third year of their respective vesting periods, which is generally over 3 years unless earlier vested pursuant to the terms of the agreement. The accrual of compensation costs is based on the estimate of the final expected value of the award and is adjusted as required for the portion based on the performance-based condition. Unlike the awards with performance-based conditions, for the portion based on the market-based condition, compensation cost is recognized, and not reversed, even if the market condition is not achieved, as required by the accounting guidance for share-based awards. As of December 31, 2019, $245,000 of unrecognized compensation costs related to performance awards is expected to be recognized over a weighted average period of 1.07 years.

Commitments

12 Months Ended

Dec. 31, 2019

Risks and Uncertainties [Abstract]

Commitments

GSWC’s Water Supply:

GSWC has contracts to purchase water or water rights for an aggregate amount of $4.1 million as of December 31, 2019. Included in the $4.1 million is a commitment of $2.1 million to lease water rights from a third party under an agreement which expires in 2028. The remaining $2.0 million is for commitments for purchased water with other third parties, which expire through 2038.

GSWC’s estimated future minimum payments under these purchased water supply commitments at December 31, 2019 are as follows (in thousands):



2020	$	417
2021	417
2022	417
2023	417
2024	417
Thereafter	2,031
Total	$	4,116

Bear Valley Electric Service:

Generally, BVES purchases power at a fixed cost, under long-term purchased power contracts, depending on the amount of power and the period during which the power is purchased under such contracts. BVES began taking power pursuant to purchased power contracts approved by the CPUC effective in the fourth quarter of 2019 at a fixed cost over three and five-year terms depending on the amount of power and period during which the power is purchased under the contracts. As of December 31, 2019, GSWC's commitment under BVES's contracts totaled approximately $26.3 million.

See Note 16 for Registrant’s future minimum payments under long-term non-cancelable operating leases.

Contingencies and Gain on Sale of Assets	12 Months Ended
Contingencies and Gain on Sale of Assets	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies and Gain on Sale of Assets Condemnation of Properties: The laws of the State of California provide for the acquisition of public utility property by governmental agencies through their power of eminent domain, also known as condemnation, where doing so is necessary and in the public interest. In addition, these laws provide that the owner of utility property (i) may contest whether the condemnation is necessary and in the public interest, and (ii) is entitled to receive the fair market value of its property if the property is ultimately taken. Ojai Water System and Gain on Sale of Assets: In June 2017, pursuant to a settlement agreement to resolve an eminent domain action, Casitas Municipal Water District acquired the operating assets of GSWC’s 2,900-connection Ojai water system by eminent domain for $34.3 million in cash. As a result of this transaction, GSWC recorded a pretax gain of $8.3 million on the sale of the Ojai water system during 2017. The terms of the settlement agreement resolved the eminent domain action and dismissed all claims against GSWC brought by Casitas and another third party. Environmental Clean-Up and Remediation: GSWC has been involved in environmental remediation and cleanup at a plant site (“Chadron Plant”) that contained an underground storage tank, which was used to store gasoline for its vehicles. This tank was removed from the ground in July 1990 along with the dispenser and ancillary piping. Since then, GSWC has been involved in various remediation activities at this site. Analysis indicates that offsite monitoring wells may also be necessary to document effectiveness of remediation. As of December 31, 2019, the total spent to clean-up and remediate the Chadron Plant was approximately $6.3 million, of which $1.5 million has been paid by the State of California Underground Storage Tank Fund. Amounts paid by GSWC have been included in rate base and approved by the CPUC for recovery. As of December 31, 2019, GSWC has a regulatory asset and an accrued liability for the estimated remaining cost of $1.3 million to complete the cleanup at the site. The estimate includes costs for 2 years of continued activities of groundwater cleanup and monitoring, future soil treatment and site-closure-related activities. The ultimate cost may vary as there are many unknowns in remediation of underground gasoline spills and this is an estimate based on currently available information. Management also believes it is probable that the estimated additional costs will be approved in rate base by the CPUC. Other Litigation: Registrant is also subject to other ordinary routine litigation incidental to its business, some of which may include claims for compensatory and punitive damages. Management believes that rate recovery, proper insurance coverage and reserves are in place to insure against, among other things, property, general liability, employment and workers’ compensation claims incurred in the ordinary course of business. Insurance coverage may not cover certain claims involving punitive damages. However, Registrant does not believe the outcome from any pending suits or administrative proceedings will have a material effect on Registrant's consolidated results of operations, financial position or cash flows.

Leases Leases

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Leases [Text Block]

Leases

The adoption of the new lease guidance did not have a material impact on Registrant's results of operations or liquidity but resulted in the recognition of operating lease liabilities and operating lease right-of-use assets on its balance sheets. Right-of-use ("ROU") assets represent the right to use an underlying asset for the lease term, and lease liabilities represent the obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. As of December 31, 2019, Registrant has right-of-use assets of $13.2 million, short-term operating lease liabilities of $1.8 million and long-term operating lease liabilities of $11.7 million.

Significant assumptions and judgments made as part of the adoption of this new lease standard include determining (i) whether a contract contains a lease, (ii) whether a contract involves an identified asset, and (iii) which party to the contract

directs the use of the asset. The discount rates used to calculate the present value of lease payments were determined based on hypothetical borrowing rates available to Registrant over terms similar to the lease terms.

Registrant’s leases consist of real estate and equipment leases, which are mostly GSWC's. Most of Registrant's leases require fixed lease payments. Some real estate leases have escalation payments, which depend on an index. Variable lease costs were not material. Lease terms used to measure the lease liability include options to extend the lease if the option is reasonably certain to be exercised. Lease and non-lease components were combined to measure lease liabilities.

GSWC's long-term debt includes $28 million of 9.56% private placement notes, which require GSWC to maintain a total indebtedness to capitalization ratio of less than 0.6667 -to-1. The indebtedness, as defined in the note agreement, includes any lease liabilities required to be recorded under GAAP. As of December 31, 2019, GSWC had a total indebtedness (including GSWC's lease liabilities) to capitalization ratio of 0.4445 -to-1. None of the other covenants or restrictions contained in Registrant's long-term debt agreements were affected by the adoption of the new lease standard.

Registrant's supplemental lease information for the year ended December 31, 2019 is as follows (in thousands, except for weighted average data):



	For The Year Ended December 31, 2019

Operating lease costs	$	3,166
Short-term lease costs	159

Weighted average remaining lease term (in years)	7.24
Weighted-average discount rate	3.5		%

Non-cash transactions
Lease liabilities arising from obtaining right-of-use assets	$	18,034

During 2019 and 2018 and 2017, Registrant’s consolidated rent expense was approximately $2.8 million, $2.5 million and $2.4 million, respectively. Registrant’s future minimum payments under long-term non-cancelable operating leases are as follows (in thousands):



	December 31, 2019		December 31, 2018
2020	$	2,709	$	2,530
2021	2,533		1,497
2022	2,217		1,007
2023	1,779		546
2024	1,499		293
Thereafter	5,246		311
Total lease payments	15,983		$	6,184
Less: imputed interest	2,395
Total lease obligations	13,588
Less: current obligations	1,849
Long-term lease obligations	$	11,739

The increase in future minimum lease payments from December 31, 2018 to December 31, 2019 was largely due to new office leases entered into during 2019. The consolidated operations of AWR and the operations of GSWC in regard to the future minimum payments under long-term cancelable operating leases are not materially different.

Business Segments

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Business Segments

AWR has 3 reportable segments, water, electric and contracted services, whereas GSWC has 2 segments, water and electric. On a stand-alone basis, AWR has no material assets other than its equity investments in its subsidiaries and note receivables therefrom, and deferred taxes.

All activities of GSWC are geographically located within California. Activities of ASUS and the Military Utility Privatization Subsidiaries are conducted in California, Florida, Georgia, Kansas, Maryland, New Mexico, North Carolina, South Carolina, Texas and Virginia. Each of the Military Utility Privatization Subsidiaries is regulated, if applicable, by the state in which the subsidiary primarily conducts water and/or wastewater operations. Fees charged for operations and maintenance and renewal and replacement services are based upon the terms of the contracts with the U.S. government which have been filed, as appropriate, with the commissions in the states in which ASUS’s subsidiaries are incorporated.

The tables below set forth information relating to GSWC’s operating segments, ASUS and the Military Utility Privatization Subsidiaries and other matters. Total assets by segment are not presented below, as certain of Registrant’s assets are not tracked by segment. The utility plant balances are net of respective accumulated provisions for depreciation. Capital additions reflect capital expenditures paid in cash and exclude U.S. government-funded and third-party prime funded capital expenditures for ASUS and property installed by developers and conveyed to GSWC.



	As Of And For The Year Ended December 31, 2019
	GSWC							AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS			Parent			AWR
Operating revenues	$	319,830	$	39,548	$	114,491		$	—		$	473,869
Operating income (loss)	93,895		11,197		21,990			(9		)	127,073
Interest expense, net	20,304		1,228		(734		)	539			21,337
Utility Plant	1,322,062		72,680		20,963			—			1,415,705
Depreciation and amortization expense (1)	29,956		2,485		2,956			—			35,397
Income tax expense/(benefit)	17,295		2,882		5,202			(709		)	24,670
Capital additions	131,353		11,499		9,088			—			151,940



	As Of And For The Year Ended December 31, 2018
	GSWC							AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS			Parent			AWR
Operating revenues	$	295,258	$	34,350	$	107,208		$	—		$	436,816
Operating income	74,342		6,220		20,414			7			100,983
Interest expense, net	18,403		1,328		(327		)	451			19,855
Utility Plant	1,218,468		62,624		15,218			—			1,296,310
Depreciation and amortization expense (1)	36,137		2,258		2,030			—			40,425
Income tax expense/(benefit)	12,391		1,212		4,939			(525		)	18,017
Capital additions	110,934		5,420		10,207			—			126,561



	As Of And For The Year Ended December 31, 2017
	GSWC						AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS		Parent			AWR
Operating revenues	$	306,332	$	33,969	$	100,302	$	—		$	440,603
Operating income (loss)	98,678		7,193		21,320		(96		)	127,095
Interest expense, net	18,909		1,380		255		248			20,792
Utility Plant	1,137,995		59,945		7,052		—			1,204,992
Depreciation and amortization expense (1)	35,706		2,146		1,179		—			39,031
Income tax expense/(benefit)	32,212		1,847		7,136		(2,221		)	38,974
Capital additions	104,546		5,941		2,639		—			113,126

____________________________

(1) Depreciation computed on GSWC’s transportation equipment is recorded in other operating expenses and totaled $316,000, $238,000 and $242,000 for the years ended December 31, 2019, 2018 and 2017, respectively.

The following table reconciles total utility plant (a key figure for rate-making) to total consolidated assets (in thousands):



	December 31,
	2019		2018
Total utility plant	$	1,415,705	$	1,296,310
Other assets	225,626		205,123
Total consolidated assets	$	1,641,331	$	1,501,433

Allowance for Doubtful Accounts

12 Months Ended

Dec. 31, 2019

Allowance for Doubtful Accounts

Allowance for Doubtful Accounts

The table below presents Registrant’s provision for doubtful accounts charged to expense and accounts written off, net of recoveries. Provisions included in 2019, 2018, and 2017 for AWR and GSWC are as follows:



	AWR
	December 31,
(dollars in thousands)	2019			2018			2017
Balance at beginning of year	$	951		$	1,041		$	764
Provision charged to expense	609			841			989
Accounts written off, net of recoveries	(644		)	(931		)	(712		)
Balance at end of year	$	916		$	951		$	1,041

Allowance for doubtful accounts related to accounts receivable-customer	$	857		$	892		$	806
Allowance for doubtful accounts related to other accounts receivable	59			59			235
Total allowance for doubtful accounts	$	916		$	951		$	1,041



	GSWC
	December 31,
(dollars in thousands)	2019			2018			2017
Balance at beginning of year	$	951		$	865		$	761
Provision charged to expense	607			850			816
Accounts written off, net of recoveries	(642		)	(764		)	(712		)
Balance at end of year	$	916		$	951		$	865

Allowance for doubtful accounts related to accounts receivable-customer	$	857		$	892		$	806
Allowance for doubtful accounts related to other accounts receivable	59			59			59
Total allowance for doubtful accounts	$	916		$	951		$	865

Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2019

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

The following table sets forth non-cash financing and investing activities and other cash flow information (in thousands).



	AWR						GSWC
	December 31,						December 31,
	2019		2018		2017		2019		2018		2017
Taxes and Interest Paid:
Income taxes paid, net	$	22,496	$	21,084	$	13,615	$	17,206	$	19,448	$	4,822
Interest paid, net of capitalized interest	25,080		23,471		22,762		23,925		22,721		22,285

Non-Cash Transactions:
Accrued payables for investment in utility plant	$	23,736	$	27,403	$	20,131	$	23,736	$	27,403	$	20,128
Property installed by developers and conveyed	6,220		2,082		2,082		6,220		2,082		2,082

Selected Quarterly Financial Data (Unaudited) (Notes)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Data [Abstract]

Quarterly Financial Information

Note 20 — Selected Quarterly Financial Data (Unaudited)

The quarterly financial information presented below is unaudited. Registrant's business is seasonal, and it is management’s opinion that comparisons of earnings for the quarterly periods do not reflect overall trends and changes in Registrant’s operations.



	AWR
	For The Year Ended December 31, 2019
(in thousands, except per share amounts)	First Quarter		Second Quarter (1)		Third Quarter (2)		Fourth Quarter		Year
Operating revenues	$	101,733	$	124,647	$	134,496	$	112,993	$	473,869
Operating income	20,195		39,430		42,724		24,724		127,073
Net income	12,852		26,784		28,006		16,700		84,342
Basic earnings per share	0.35		0.72		0.76		0.45		2.28
Diluted earnings per share	0.35		0.72		0.76		0.45		2.28



	GSWC
	For The Year Ended December 31, 2019
(in thousands)	First Quarter		Second Quarter (1)		Third Quarter (2)		Fourth Quarter		Year
Operating revenues	$	75,352	$	95,548	$	107,245	$	81,233	$	359,378
Operating income	15,327		34,037		36,982		18,746		105,092
Net income	9,022		22,298		23,362		11,981		66,663



	AWR
	For The Year Ended December 31, 2018
(in thousands, except per share amounts)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year
Operating revenues	$	94,728	$	106,901	$	124,182	$	111,005	$	436,816
Operating income	18,691		25,568		33,975		22,749		100,983
Net income	10,782		16,348		22,952		13,789		63,871
Basic earnings per share *	0.29		0.44		0.62		0.37		1.73
Diluted earnings per share	0.29		0.44		0.62		0.37		1.72



	GSWC
	For The Year Ended December 31, 2018
(in thousands)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year
Operating revenues	$	74,244	$	84,574	$	95,564	$	75,226	$	329,608
Operating income	16,297		22,645		27,540		14,080		80,562
Net income	8,890		13,648		17,919		7,555		48,012

* The sum of the quarterly basic earnings per share amounts do not agree to the yearly total due to rounding.


(1)	The second quarter of 2019 includes approximately $4.0 million of operating income related to the first quarter of 2019 as a result of the final CPUC decision on the water general rate case, which was received in May 2019 and was retroactive to January 1, 2019.

(2)

The third quarter of 2019 includes the retroactive impact of the final decision on the electric general rate case approved by the CPUC in August 2019, which was retroactive to January 1, 2018. Included in the third quarter of 2019 results are approximately $1.4 million of pretax income related to the first two quarters of 2019 and approximately $2.3 million of pretax income related to 2018.

SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT

12 Months Ended

Dec. 31, 2019

Condensed Financial Information Disclosure [Abstract]

SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT

CONDENSED BALANCE SHEETS



	December 31,
(in thousands)	2019		2018
Assets

Cash and equivalents	$	310	$	34
Intercompany note receivables	185,094		76,072
Total current assets	185,404		76,106

Investments in subsidiaries	616,725		574,330
Deferred taxes and other assets	9,548		8,769
Total assets	$	811,677	$	659,205

Liabilities and Capitalization

Notes payable to bank	$	5,000	$	—
Income taxes payable	3,259		3,672
Other liabilities	274		291
Total current liabilities	8,533		3,963

Notes payable to bank	200,000		$	95,500
Deferred taxes and other liabilities	1,614		1,519
Total other liabilities	201,614		97,019

Common shareholders’ equity	601,530		558,223
Total capitalization	601,530		558,223

Total liabilities and capitalization	$	811,677	$	659,205

The accompanying condensed notes are an integral part of these condensed financial statements.

CONDENSED STATEMENTS OF INCOME



	For the Years Ended December 31,
(In thousands, except per share amounts)	2019			2018			2017
Operating revenues and other income	$	—		$	—		$	—
Operating expenses and other expenses	314			305			344
Income before equity in earnings of subsidiaries and income taxes	(314		)	(305		)	(344		)

Equity in earnings of subsidiaries	83,947			63,651			67,490

Income before income taxes	83,633			63,346			67,146

Income tax benefit	(709		)	(525		)	(2,221		)

Net income	$	84,342		$	63,871		$	69,367

Weighted Average Number of Common Shares Outstanding	36,814			36,733			36,638
Basic Earnings Per Common Share	$	2.28		$	1.73		$	1.88

Weighted Average Number of Diluted Common Shares Outstanding	36,964			36,936			36,844
Fully Diluted Earnings per Common Share	$	2.28		$	1.72		$	1.88

Dividends Paid Per Common Share	$	1.160		$	1.060		$	0.994

The accompanying condensed notes are an integral part of these condensed financial statements.

CONDENSED STATEMENTS OF CASH FLOWS



	For the Years Ended December 31,
(in thousands)	2019			2018			2017
Cash Flows From Operating Activities	$	40,459		$	79,877		$	36,024

Cash Flows From Investing Activities:
Loans (made to)/repaid from, wholly-owned subsidiaries	(107,500		)	(30,500		)	30,500
Increase in investment of subsidiary	—			(47,500		)	—
Net cash provided (used) in investing activities	(107,500		)	(78,000		)	30,500

Cash Flows From Financing Activities:
Proceeds from stock option exercises	519			546			909
Net change in notes payable to banks	109,500			36,500			(31,000		)
Dividends paid	(42,702		)	(38,937		)	(36,417		)
Net cash provided (used) in financing activities	67,317			(1,891		)	(66,508		)

Change in cash and equivalents	276			(14		)	16
Cash and equivalents at beginning of period	34			48			32

Cash and equivalents at the end of period	$	310		$	34		$	48

Basis of Presentation

The accompanying condensed financial statements of AWR (parent) should be read in conjunction with the consolidated financial statements and notes thereto of American States Water Company and subsidiaries (“Registrant”) included in Part II, Item 8 of this Form 10-K. AWR’s (parent) significant accounting policies are consistent with those of Registrant and its wholly owned subsidiaries, Golden State Water Company (“GSWC”) and American States Utility Services, Inc. ("ASUS"), except that all subsidiaries are accounted for as equity method investments.

Related-Party Transactions:

As further discussed in Note 2 — Notes Payable to Banks, AWR (parent) currently has access to a $225.0 million revolving credit facility. AWR (parent) borrows under this facility and provides funds to its subsidiaries, in support of their operations. Any amounts owed to AWR (parent) for borrowings under this facility are reflected as inter-company receivables on the condensed balance sheets. The interest rate charged to the subsidiaries is sufficient to cover AWR (parent)’s interest cost under the credit facility.

AWR (parent) guarantees performance of ASUS's military privatization contracts and agrees to provide necessary resources, including financing, which are necessary to assure the complete and satisfactory performance of such contracts.

Note Payable to Banks

AWR (parent) has access to a credit facility in order to provide funds to its subsidiaries, GSWC and ASUS, in support of their operations. In March 2019, AWR amended this credit facility to increase its borrowing capacity from $150.0 million to $200.0 million, and in October 2019 further amended the credit facility to temporarily increase its borrowing capacity to $225.0 million, effective until June 30, 2020. In February 2020, AWR received a binding commitment from its lender for the option to revise the temporary increase of the credit facility to $260.0 million through the end of 2020. When needed, AWR will be able to exercise this commitment and have immediate access to the additional funds. On December 31, 2020, the borrowing capacity will revert to $200.0 million. Amy amounts borrowed up to $200.0 million will be due in May 2023, and any amounts borrowed in excess of $200.0 million will be due in 2020.

The aggregate effective amount that may be outstanding under letters of credit is $25.0 million. AWR has obtained letters of credit, primarily for GSWC, in the aggregate amount of $940,000, with fees of 0.65% including: (i) letters of credit in an aggregate amount of $340,000 as security for GSWC’s business automobile insurance policy; (ii) a letter of credit in an amount of $585,000 as security for the purchase of power; and (iii) a $15,000 irrevocable letter of credit pursuant to a franchise agreement with the City of Rancho Cordova. Letters of credit outstanding reduce the amount that may be borrowed under the revolving credit facility. AWR was not required to maintain any compensating balances.

Loans can be obtained under this credit facility at the option of AWR and bear interest at rates based on credit ratings and Euro rate margins. In December 2019, Standard and Poor’s Global Ratings (“S&P”) affirmed an A+ credit rating with a stable outlook on both AWR and GSWC. S&P’s debt ratings range from AAA (highest possible) to D (obligation is in default). In May 2019, Moody's Investors Service ("Moody's") affirmed its A2 rating with a revised outlook from positive to stable for GSWC.

At December 31, 2019, there was $205.0 million outstanding under this facility. At times, AWR (parent) borrows under this facility and provides loans to its subsidiaries in support of its operations, under terms that are similar to that of the credit facility. AWR’s (parent) borrowing activities (excluding letters of credit) for the years ended December 31, 2019 and 2018 were as follows:



	December 31,
(in thousands, except percent)	2019			2018
Balance Outstanding at December 31,	$	205,000		$	95,500
Interest Rate at December 31,	2.44		%	3.19		%
Average Amount Outstanding	$	167,392		$	69,559
Weighted Average Annual Interest Rate	2.88		%	2.66		%
Maximum Amount Outstanding	$	205,500		$	95,500

December 31, 2019, AWR had an interest coverage ratio of 6.89 times interest expense, a debt ratio of 0.45 to 1.00 and a debt rating of A+ by S&P.

Income Taxes

AWR (parent) receives a tax benefit for expenses incurred at the parent-company level. AWR (parent) also recognizes the effect of AWR’s consolidated California unitary apportionment, which is beneficial or detrimental depending on a combination of the profitability of AWR’s consolidated non-California activities as well as the proportion of its consolidated California sales to total sales.

Dividend from Subsidiaries

Dividends in the amount of $42.7 million, $79.0 million and $36.5 million were paid to AWR (parent) by its wholly owned subsidiaries during the years ended December 31, 2019, 2018 and 2017, respectively.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Basis of Accounting, Policy [Policy Text Block]

There is no direct regulatory oversight by the CPUC over AWR or the operations, rates or services provided by ASUS or the Military Utility Privatization Subsidiaries.

Utility Accounting [Policy Text Block]

Property and Depreciation [Policy Text Block]

Estimated useful lives of GSWC’s utility plant, as authorized by the CPUC, are as follows:



Source of water supply	30 years to 50 years
Pumping	25 years to 40 years
Water treatment	20 years to 35 years
Transmission and distribution	25 years to 55 years
Generation	40 years
Other plant	7 years to 40 years

Asset Retirement Obligation [Policy Text Block]

Impairment of Long-Lived Assets [Policy Text Block]

Goodwill [Policy Text Block]

Cash and Cash Equivalents [Policy Text Block]

Accounts Receivable [Policy Text Block]

Materials and Supplies [Policy Text Block]

Interest [Policy Text Block]

financing project construction. For the years ended December 31, 2019, 2018 and 2017, the amount of AFUDC recorded has been immaterial.

Debt Issuance Costs and Redemption Premiums [Policy Text Block]

Advance for Construction and Contributions in Aid [Policy Text Block]

Fair Value of Financial Instruments, Policy [Policy Text Block]



	2019				2018
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Long-term debt—GSWC (1)	$	284,699	$	376,467	$	324,978	$	387,889

(1) Excludes debt issuance costs and redemption premiums.

The following table sets forth by level, within the fair value hierarchy, GSWC’s long-term debt measured at fair value as of December 31, 2019:



(dollars in thousands)	Level 1	Level 2		Level 3	Total
Long-term debt—GSWC	—	$	376,467	—	$	376,467

Stock-Based Awards [Policy Text Block]

New Accounting Pronouncements, Policy [Policy Text Block]

Recently Issued Accounting Pronouncements:

Accounting Pronouncements Adopted in 2019

Accounting Pronouncements to be Adopted in Future Periods

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Line Items]

Public Utility Property, Plant, and Equipment [Table Text Block]

Estimated useful lives of GSWC’s utility plant, as authorized by the CPUC, are as follows:



Source of water supply	30 years to 50 years
Pumping	25 years to 40 years
Water treatment	20 years to 35 years
Transmission and distribution	25 years to 55 years
Generation	40 years
Other plant	7 years to 40 years

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

The table below estimates the fair value of long-term debt issued by GSWC. Rates available to GSWC at December 31, 2019 and 2018 for debt with similar terms and remaining maturities were used to estimate fair value for long-term debt. Changes in the assumptions will produce differing results.



	2019				2018
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Long-term debt—GSWC (1)	$	284,699	$	376,467	$	324,978	$	387,889

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

The following table sets forth by level, within the fair value hierarchy, GSWC’s long-term debt measured at fair value as of December 31, 2019:



(dollars in thousands)	Level 1	Level 2		Level 3	Total
Long-term debt—GSWC	—	$	376,467	—	$	376,467

Revenues (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]



(dollar in thousands)	For The Year Ended December 31, 2019		For The Year Ended December 31, 2018
Water:
Tariff-based revenues	$	305,244	$	298,818
CPUC-approved surcharges (cost-recovery activities)	4,322		2,962
Other	2,006		1,813
Water revenues from contracts with customers	311,572		303,593
WRAM under/(over)-collection (alternative revenue program)	8,258		(8,335		)
Total water revenues	319,830		295,258

Electric:
Tariff-based revenues	36,628		34,501
CPUC-approved surcharges (cost-recovery activities)	410		214
Electric revenues from contracts with customers	37,038		34,715
BRRAM under/(over)-collection (alternative revenue program)	2,510		(365		)
Total electric revenues	39,548		34,350

Contracted services:
Water	59,868		62,273
Wastewater	54,623		44,935
Contracted services revenues from contracts with customers	114,491		107,208

Total revenues	$	473,869	$	436,816

Contract with Customer, Asset and Liability [Table Text Block]

The opening and closing balances of the receivable from the U.S. government, contract assets and contract liabilities from contracts with customers, which related entirely to ASUS, are as follows:



(dollar in thousands)	December 31, 2019		December 31, 2018

Unbilled receivables	$	10,467	$	5,696
Receivable from the U.S. government	$	64,819	$	61,126
Contract assets	$	15,631	$	24,447
Contract liabilities	$	11,167	$	7,530

Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2019

Regulated Operations [Abstract]

Schedule of regulatory assets, less regulatory liabilities in the consolidated balance sheets for continuing operations

Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows:



	December 31,
(dollars in thousands)	2019			2018
GSWC
Water Revenue Adjustment Mechanism and Modified Cost Balancing Account	$	22,535		$	17,763
Costs deferred for future recovery on Aerojet case	8,292			9,516
Pensions and other post-retirement obligations (Note 12)	40,693			33,124
Derivative unrealized loss (Note 5)	3,171			311
General rate case memorandum accounts	4,820			5,054
Other regulatory assets	18,842			18,440
Excess deferred income taxes (Note 11)	(79,886		)	(81,465		)
Flow-through taxes, net (Note 11)	(12,439		)	(15,273		)
Tax Cuts and Jobs Act ("Tax Act") memorandum accounts	—			(8,293		)
Various refunds to customers	(8,478		)	(7,517		)
Total	$	(2,450	)	$	(28,340	)

Utility Plant and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Utility Plant and Intangible Assets

Schedule of Public Utility Property Plant and Equipment Components [Table Text Block]

The following table shows Registrant’s utility plant (regulated utility plant and non-regulated utility property) by major asset class:



	AWR December 31,						GSWC December 31,
(dollars in thousands)	2019			2018			2019			2018
Water
Land	$	18,066		$	14,890		$	18,066		$	14,890
Intangible assets	28,578			29,412			28,578			29,413
Source of water supply	91,685			91,349			91,685			91,349
Pumping	178,058			182,673			178,058			182,673
Water treatment	78,048			82,198			78,048			82,198
Transmission and distribution	1,219,285			1,142,105			1,219,285			1,142,105
Other	117,276			131,419			86,722			106,907
	1,730,996			1,674,046			1,700,442			1,649,535
Electric
Transmission and distribution	84,018			82,257			84,018			82,257
Generation	12,583			12,583			12,583			12,583
Other (1)	11,824			11,224			11,824			11,224
	108,425			106,064			108,425			106,064

Less — accumulated depreciation	(543,263		)	(561,855		)	(531,801		)	(551,244		)
Construction work in progress	119,547			78,055			117,676			76,737
Net utility plant	$	1,415,705		$	1,296,310		$	1,394,742		$	1,281,092

(1) Includes intangible assets of $1.2 million for the years ended December 31, 2019 and 2018 for studies performed in association with the electricity segment of the Registrant’s operations.

Schedule of components of intangible assets

As of December 31, 2019 and 2018, intangible assets consist of the following:



	Weighted Average Amortization	AWR December 31,						GSWC December 31,
(dollars in thousands)	Period	2019			2018			2019			2018
Intangible assets:
Conservation programs	3 years	$	9,486		$	9,486		$	9,486		$	9,486
Water and service rights (2)	30 years	8,695			8,695			8,124			8,124
Water planning studies	14 years	11,808			12,641			11,808			12,641
Total intangible assets		29,989			30,822			29,418			30,251
Less — accumulated amortization		(24,309		)	(24,399		)	(24,166		)	(24,268		)
Intangible assets, net of amortization		$	5,680		$	6,423		$	5,252		$	5,983

Intangible assets not subject to amortization (3)		$	402		$	422		$	402		$	404

(2) Includes intangible assets of $571,000 for contracted services included in "Other Property and Investments" on the consolidated balance sheets as of December 31, 2019 and 2018.

(3) The intangible assets not subject to amortization primarily consist of organization and consent fees.

Schedule of estimated future consolidated amortization expenses related to intangible assets

Estimated future consolidated amortization expenses related to intangible assets for the succeeding five years are (in thousands):



	Amortization Expense
2020	$	90
2021	12
2022	12
2023	12
2024	12
Total	$	138

Schedule of reconciliation of the beginning and ending aggregate carrying amount of the asset retirement obligations



(dollars in thousands)	GSWC
Obligation at December 31, 2017	$	4,963
Additional liabilities incurred	256
Liabilities settled	(46		)
Accretion	55
Obligation at December 31, 2018	$	5,228
Additional liabilities incurred	271
Liabilities settled	(173		)
Accretion	86
Revision of previous estimates	3,451
Obligation at December 31, 2019	$	8,863

Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of changes in the fair value of the derivative

Derivative instruments

The following table presents changes in the fair value of GSWC’s derivatives for the years ended December 31, 2019 and 2018:



(dollars in thousands)	2019			2018
Balance, at beginning of the period	$	(311	)	$	(2,941	)
Unrealized (loss) gain on purchased power contracts	(2,860		)	2,630
Balance, at end of the period	$	(3,171	)	$	(311	)

Earnings Per Share and Capital Stock (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Schedule of reconciliation of Registrant's net income and weighted average Common Shares outstanding for calculating basic net income per share

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding for calculating basic net income per share:



Basic:	For The Years Ended December 31,
(in thousands, except per share amounts)	2019		2018		2017
Net income	$	84,342	$	63,871	$	69,367
Less: (a) Distributed earnings to common shareholders	42,702		38,937		36,417
Distributed earnings to participating securities	180		204		197
Undistributed earnings	41,460		24,730		32,753

(b) Undistributed earnings allocated to common shareholders	41,285		24,601		32,577
Undistributed earnings allocated to participating securities	175		129		176
Total income available to common shareholders, basic (a)+(b)	$	83,987	$	63,538	$	68,994

Weighted average Common Shares outstanding, basic	36,814		36,733		36,638

Basic earnings per Common Share	$	2.28	$	1.73	$	1.88

Schedule of reconciliation of Registrant's net income and weighted average Common Shares outstanding for calculating diluted net income per share

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding for calculating diluted net income per share:



Diluted:	For The Years Ended December 31,
(in thousands, except per share amounts)	2019		2018		2017
Common shareholders earnings, basic	$	83,987	$	63,538	$	68,994
Undistributed earnings for dilutive stock options and restricted stock units	175		129		176
Total common shareholders earnings, diluted	$	84,162	$	63,667	$	69,170

Weighted average Common Shares outstanding, basic	36,814		36,733		36,638
Stock-based compensation (1)	150		203		206
Weighted average Common Shares outstanding, diluted	36,964		36,936		36,844

Diluted earnings per Common Share	$	2.28	$	1.72	$	1.88

Bank Debt (Tables)

12 Months Ended

Dec. 31, 2019

Bank Debt

Schedule of Short-term Debt [Table Text Block]

AWR’s borrowing activities (excluding letters of credit) for the years ended December 31, 2019 and 2018 were as follows:



	December 31,
(in thousands, except percent)	2019			2018
Balance Outstanding at December 31,	$	205,000		$	95,500
Interest Rate at December 31,	2.44		%	3.19		%
Average Amount Outstanding	$	167,392		$	69,559
Weighted Average Annual Interest Rate	2.88		%	2.66		%
Maximum Amount Outstanding	$	205,500		$	95,500

AWR’s (parent) borrowing activities (excluding letters of credit) for the years ended December 31, 2019 and 2018 were as follows:



	December 31,
(in thousands, except percent)	2019			2018
Balance Outstanding at December 31,	$	205,000		$	95,500
Interest Rate at December 31,	2.44		%	3.19		%
Average Amount Outstanding	$	167,392		$	69,559
Weighted Average Annual Interest Rate	2.88		%	2.66		%
Maximum Amount Outstanding	$	205,500		$	95,500

Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of annual maturities of all long-term debt, including capitalized leases

Annual maturities of all long-term debt at December 31, 2019 are as follows (in thousands):



2020	$	344
2021	365
2022	392
2023	406
2024	425
Thereafter	282,767
Total	$	284,699

Taxes on Income (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of significant components of the deferred tax assets and liabilities from continuing operations

The significant components of the deferred tax assets and liabilities as reflected in the balance sheets at December 31, 2019 and 2018 are:



	AWR						GSWC
	December 31,						December 31,
(dollars in thousands)	2019			2018			2019			2018
Deferred tax assets:
Regulatory-liability-related (1)	$	33,080		$	33,419		$	33,080		$	33,419
Contributions and advances	5,777			5,281			6,158			5,666
Other	5,792			2,988			6,618			3,310
Total deferred tax assets	$	44,649		$	41,688		$	45,856		$	42,395
Deferred tax liabilities:
Fixed assets	$	(144,444	)	$	(131,413	)	$	(147,759	)	$	(135,617	)
Regulatory-asset-related: depreciation and other	(20,641		)	(18,146		)	(20,641		)	(18,146		)
Balancing and memorandum accounts (non-flow-through)	(4,868		)	(6,325		)	(5,262		)	(6,873		)
Total deferred tax liabilities	(169,953		)	(155,884		)	(173,662		)	(160,636		)
Accumulated deferred income taxes - net	$	(125,304	)	$	(114,196	)	$	(127,806	)	$	(118,241	)

Schedule of current and deferred components of income tax expense from continuing operations

The current and deferred components of income tax expense are as follows:



	AWR
	Year Ended December 31,
(dollars in thousands)	2019		2018			2017
Current
Federal	$	12,507	$	17,252		$	20,978
State	5,540		6,538			5,844
Total current tax expense	$	18,047	$	23,790		$	26,822
Deferred
Federal	$	6,407	$	(4,334	)	$	11,543
State	216		(1,439		)	609
Total deferred tax (benefit) expense	6,623		(5,773		)	12,152
Total income tax expense	$	24,670	$	18,017		$	38,974



	GSWC
	Year Ended December 31,
(dollars in thousands)	2019		2018			2017
Current
Federal	$	9,616	$	14,488		$	15,044
State	5,480		5,932			5,045
Total current tax expense	$	15,096	$	20,420		$	20,089
Deferred
Federal	$	4,924	$	(5,531	)	$	11,770
State	157		(1,286		)	2,200
Total deferred tax (benefit) expense	5,081		(6,817		)	13,970
Total income tax expense	$	20,177	$	13,603		$	34,059

Schedule of reconciliations of the effective tax rates to the federal statutory rate

The reconciliations of the effective tax rates to the federal statutory rate are as follows:



	AWR
	Year Ended December 31,
(dollars in thousands)	2019			2018			2017
Federal taxes on pretax income at statutory rate (21% in 2019 and 2018; 35% in 2017)	$	22,872		$	17,196		$	37,919
Increase (decrease) in taxes resulting from:
State income tax, net of federal benefit	4,758			3,693			4,382
Change in tax rate	—			(14		)	(82		)
Excess deferred tax amortization	(1,579		)	(2,101		)	—
Flow-through on fixed assets	1,244			429			845
Flow-through on removal costs	(1,582		)	(1,445		)	(1,980		)
Domestic production activities deduction	—			(26		)	(1,421		)
Investment tax credit	(71		)	(69		)	(93		)
Other – net	(972		)	354			(596		)
Total income tax expense from operations	$	24,670		$	18,017		$	38,974
Pretax income from operations	$	109,012		$	81,888		$	108,341
Effective income tax rate	22.6		%	22.0		%	36.0		%



	GSWC
	Year Ended December 31,
(dollars in thousands)	2019			2018			2017
Federal taxes on pretax income at statutory rate (21% in 2019 and 2018; 35% in 2017)	$	18,236		$	12,939		$	30,736
Increase (decrease) in taxes resulting from:
State income tax, net of federal benefit	4,656			3,335			4,924
Change in tax rate	—			—			1,063
Excess deferred tax amortization	(1,579		)	(2,101		)	—
Flow-through on fixed assets	1,244			429			845
Flow-through on removal costs	(1,582		)	(1,445		)	(1,980		)
Domestic production activities deduction	—			(25		)	(1,148		)
Investment tax credit	(71		)	(69		)	(93		)
Other – net	(727		)	540			(288		)
Total income tax expense from operations	$	20,177		$	13,603		$	34,059
Pretax income from operations	$	86,840		$	61,615		$	87,816
Effective income tax rate	23.2		%	22.1		%	38.8		%

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Employee benefit plans

Schedule of Pension Plan's funded status and amounts recognized in balance sheets and the components of net pension cost and accrued post-retirement liability



	Pension Benefits						Post-Retirement Medical Benefits
(dollars in thousands)	2019			2018			2019			2018
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year	$	196,082		$	207,690		$	7,886		$	8,491
Service cost	4,441			5,342			186			218
Interest cost	8,527			7,646			285			292
Plan amendment	—			3,626			—			—
Actuarial (gain) loss	29,784			(21,717		)	(538		)	(701		)
Benefits/expenses paid	(6,982		)	(6,505		)	(424		)	(414		)
Projected benefit obligation at end of year	$	231,852		$	196,082		$	7,395		$	7,886

Changes in Plan Assets:
Fair value of plan assets at beginning of year	$	162,529		$	173,648		$	10,010		$	11,053
Actual return on plan assets	33,018			(10,626		)	1,685			(629		)
Employer contributions	3,913			6,012			170			—
Benefits/expenses paid	(6,983		)	(6,505		)	(594		)	(414		)
Fair value of plan assets at end of year	$	192,477		$	162,529		$	11,271		$	10,010

Funded Status:
Net amount recognized as accrued pension cost	$	(39,375	)	$	(33,553	)	$	3,876		$	2,124



	Pension Benefits						Post-Retirement Medical Benefits
(dollars in thousands)	2019			2018			2019			2018
Amounts recognized on the balance sheets:
Non-current assets	$	—		$	—		$	3,876		$	2,124
Current liabilities	—			—			—			—
Non-current liabilities	(39,375		)	(33,553		)	—			—
Net amount recognized	$	(39,375	)	$	(33,553	)	$	3,876		$	2,124
Amounts recognized in regulatory assets consist of:
Prior service cost (credit)	$	3,191		$	3,626		$	—		$	—
Net (gain) loss	37,309			31,587			(5,432		)	(4,459		)
Regulatory assets (liabilities)	40,500			35,213			(5,432		)	(4,459		)
Unfunded accrued pension cost	(1,125		)	(1,660		)	1,556			2,335
Net liability (asset) recognized	$	39,375		$	33,553		$	(3,876	)	$	(2,124	)

Changes in plan assets and benefit obligations recognized in regulatory assets:
Regulatory asset at beginning of year	$	35,213		$	32,761		$	(4,459	)	$	(5,650	)
Net loss (gain)	7,140			81			(1,775		)	421
New prior service cost	—			3,626			—			—
Amortization of prior service (cost) credit	(434		)	—			—			—
Amortization of net gain (loss)	(1,419		)	(1,255		)	802			770
Total change in regulatory asset	5,287			2,452			(973		)	1,191
Regulatory asset (liability) at end of year	$	40,500		$	35,213		$	(5,432	)	$	(4,459	)

Net periodic pension costs	$	4,447		$	3,070		$	(779	)	$	(752	)
Change in regulatory asset	5,287			2,452			(973		)	1,191
Total recognized in net periodic pension cost and regulatory asset (liability)	$	9,734		$	5,522		$	(1,752	)	$	439

Estimated amounts that will be amortized from regulatory asset over the next fiscal year:
Prior service (cost) credit	$	(434	)	$	(434	)	$	—		$	—
Net gain (loss)	$	(1,768	)	$	(1,435	)	$	796		$	598

Additional year-end information for plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	$	231,852		$	196,082		$	7,395		$	7,886
Accumulated benefit obligation	$	215,996		$	183,036		N/A			N/A
Fair value of plan assets	$	192,477		$	162,529		$	11,271		$	10,010

Weighted-average assumptions used to determine benefit obligations at December 31:
Discount rate	3.43		%	4.43		%	3.12		%	4.20		%
Rate of compensation increase	*			*			N/A			N/A

* Age-graded ranging from 3.0% to 8.0%.

Schedule of components of net periodic pension and post-retirement benefits cost, before allocation to the overhead pool

The components of net periodic pension and post-retirement benefits cost, before allocation to the overhead pool, for 2019, 2018 and 2017 are as follows:



	Pension Benefits									Post-Retirement Medical Benefits
(dollars in thousands, except percent)	2019			2018			2017			2019			2018			2017
Components of Net Periodic Benefits Cost:
Service cost	$	4,441		$	5,342		$	4,999		$	186		$	218		$	227
Interest cost	8,527			7,646			7,904			285			292			324
Expected return on plan assets	(10,374		)	(11,172		)	(9,705		)	(449		)	(493		)	(466		)
Amortization of prior service cost (credit)	434			—			—			—			—			—
Amortization of actuarial (gain) loss	1,419			1,254			923			(801		)	(769		)	(775		)
Net periodic pension cost under accounting standards	$	4,447		$	3,070		$	4,121		$	(779	)	$	(752	)	$	(690	)
Regulatory adjustment	(593		)	—			465			—			—			—
Total expense recognized, before surcharges and allocation to overhead pool	$	3,854		$	3,070		$	4,586		$	(779	)	$	(752	)	$	(690	)

Weighted-average assumptions used to determine net periodic cost:
Discount rate	4.43		%	3.76		%	4.44		%	4.20		%	3.52		%	3.97		%
Expected long-term return on plan assets	6.50		%	6.50		%	6.50		%	*			*			*
Rate of compensation increase	**			**			**			N/A			N/A			N/A

*6.0% for union plan and 4.2% for non-union (net of income taxes) in 2019, 2018 and 2017.

** Age-graded ranging from 3.0% to 8.0%.

Schedule of Actual Allocation of Plan Assets [Table Text Block]



	Pension Benefits				Post-Retirement Medical Benefits
Asset Category	2019		2018		2019		2018
Actual Asset Allocations:
Equity securities	56	%	53	%	61	%	59	%
Debt securities	39	%	43	%	38	%	39	%
Real Estate Funds	5	%	4	%	—	%	—	%
Cash equivalents	—	%	—	%	1	%	2	%
Total	100	%	100	%	100	%	100	%

Schedule of pension and post-retirement plan target asset allocations

Equity securities did not include AWR’s Common Shares as of December 31, 2019 and 2018.



Target Asset Allocations for 2019:	Pension Benefits		Post-retirement Medical Benefits
Equity securities	60	%	60	%
Debt securities	40	%	40	%
Total	100	%	100	%

Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block]

he following tables set forth the fair value, measured by net asset value, of the pension investment assets as of December 31, 2019 and 2018:



	Net Asset Value as of December 31, 2019
(dollars in thousands)	Fair Value		Unfunded Commitments	Redemption Frequency	Redemption Notice Period
Cash equivalents	$	600	—	N/A	N/A
Fixed income fund	74,123		—	Daily	Daily
Equity securities:
U.S. small/mid cap funds	17,865		—	Daily	Daily
U.S. large cap funds	47,132		—	Daily	Daily
International funds	43,778		—	Daily	Daily
Total equity funds	108,775		—
Real estate funds	8,979		—	Daily	Daily
Total	$	192,477	—



	Net Asset Value as of December 31, 2018
(dollars in thousands)	Fair Value		Unfunded Commitments	Redemption Frequency	Redemption Notice Period
Cash equivalents	$	590	—	N/A	N/A
Fixed income fund	70,642		—	Daily	Daily
Equity securities:
U.S. small/mid cap funds	22,313		—	Daily	Daily
U.S. large cap funds	46,133		—	Daily	Daily
International funds	15,548		—	Daily	Daily
Total equity funds	83,994
Real estate funds	7,303		—	Daily	Daily
Total	$	162,529	—

Schedule of estimated future benefit payments

stimated future benefit payments at December 31, 2019 for the next five years and thereafter are as follows (in thousands):



	Pension Benefits		Post-Retirement Medical Benefits
2020	$	7,910	$	526
2021	8,574		599
2022	9,263		642
2023	9,839		677
2024	10,441		652
Thereafter	60,621		2,607
Total	$	106,648	$	5,703

Schedule of effects of one-percentage-point change in assumed health care cost trend rates

A one-percentage-point change in assumed health care cost trend rates would have the following effects on the post-retirement medical plan:



(dollars in thousands)	1-Percentage-Point Increase		1-Percentage-Point Decrease
Effect on total of service and interest cost components	$	34	$	(29	)
Effect on post-retirement benefit obligation	$	749	$	(645	)

Schedule of pension and post-retirement plans' investment assets measured at fair value

The following tables set forth by level, within the fair value hierarchy, the post-retirement plan's investment assets measured at fair value as of December 31, 2019 and 2018:



	Fair Value as of December 31, 2019
(dollars in thousands)	Level 1		Level 2	Level 3	Total
Fair Value of Post-Retirement Plan Assets:
Cash equivalents	$	69	—	—	$	69
Fixed income	4,279		—	—	4,279
U.S. equity securities	6,923		—	—	6,923
Total investments measured at fair value	$	11,271	—	—	$	11,271



	Fair Value as of December 31, 2018
(dollars in thousands)	Level 1		Level 2	Level 3	Total
Fair Value of Post-Retirement Plan Assets:
Cash equivalents	$	263	—	—	$	263
Fixed income	3,871		—	—	3,871
U.S. equity securities	5,876		—	—	5,876
Total investments measured at fair value	$	10,010	—	—	$	10,010

Supplemental Employee Retirement Plan [Member]

Employee benefit plans

Schedule of Pension Plan's funded status and amounts recognized in balance sheets and the components of net pension cost and accrued post-retirement liability

The following provides a reconciliation of benefit obligations, funded status of the SERP, as well as a summary of significant estimates at December 31, 2019 and 2018:



(dollars in thousands)	2019			2018
Change in Benefit Obligation:
Benefit obligation at beginning of year	$	24,517		$	24,062
Service cost	1,193			1,096
Interest cost	1,069			888
Actuarial (gain) loss	3,419			(1,104		)
Benefits paid	(495		)	(425		)
Benefit obligation at end of year	$	29,703		$	24,517
Changes in Plan Assets:
Fair value of plan assets at beginning and end of year	—			—
Funded Status:
Net amount recognized as accrued cost	$	(29,703	)	$	(24,517	)



(in thousands)	2019			2018
Amounts recognized on the balance sheets:
Current liabilities	$	(609	)	$	(433	)
Non-current liabilities	(29,094		)	(24,084		)
Net amount recognized	$	(29,703	)	$	(24,517	)
Amounts recognized in regulatory assets consist of:
Prior service cost	$	—		$	—
Net loss	8,352			5,403
Regulatory assets	8,352			5,403
Unfunded accrued cost	21,351			19,114
Net liability recognized	$	29,703		$	24,517

Changes in plan assets and benefit obligations recognized in regulatory assets consist of:
Regulatory asset at beginning of year	$	5,403		$	7,556
Net (gain) loss	3,419			(1,104		)
Amortization of prior service credit	—			—
Amortization of net loss	(470		)	(1,049		)
Total change in regulatory asset	2,949			(2,153		)
Regulatory asset at end of year	$	8,352		$	5,403

Net periodic pension cost	$	2,733		$	3,033
Change in regulatory asset	2,949			(2,153		)
Total recognized in net periodic pension and regulatory asset	$	5,682		$	880

Estimated amounts that will be amortized from regulatory asset over the next fiscal year:
Initial net asset (obligation)	$	—		$	—
Prior service cost	—			—
Net loss	(844		)	(471		)
Additional year-end information for plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	$	29,703		$	24,517
Accumulated benefit obligation	26,251			21,229
Fair value of plan assets	—			—
Weighted-average assumptions used to determine benefit obligations:
Discount rate	3.36		%	4.40		%
Rate of compensation increase	4.00		%	4.00		%

Schedule of components of net periodic pension and post-retirement benefits cost, before allocation to the overhead pool

The components of SERP expense, before allocation to the overhead pool, for 2019, 2018 and 2017 are as follows:



(dollars in thousands, except percent)	2019			2018			2017
Components of Net Periodic Benefits Cost:
Service cost	$	1,193		$	1,096		$	930
Interest cost	1,069			888			893
Amortization of prior service cost	—			—			12
Amortization of net loss	471			1,049			777
Net periodic pension cost	$	2,733		$	3,033		$	2,612

Weighted-average assumptions used to determine net periodic cost:
Discount rate	4.40		%	3.72		%	4.34		%
Rate of compensation increase	4.00		%	4.00		%	4.00		%

Schedule of estimated future benefit payments

Estimated future benefit payments for the SERP at December 31, 2019 for the next five years and thereafter are as follows (in thousands):



2020	$	609
2021	830
2022	932
2023	1,624
2024	1,704
Thereafter	10,117
Total	$	15,816

Schedule of pension and post-retirement plans' investment assets measured at fair value

<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:8px;padding-top:8px;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following tables set forth by level, within the fair value hierarchy, the Rabbi Trust investment assets measured at fair value as of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2019</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">2018</font><font style="font-family:inherit;font-size:10pt;">:</font></div><div style="line-height:120%;padding-bottom:8px;padding-top:8px;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15" rowspan="1"></td></tr><tr><td style="width:52%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:9%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:9%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;font-weight:bold;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="13" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Fair Value as of December 31, 2019</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">(dollars in thousands)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Level 1</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Level 2</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Level 3</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Fair Value of Assets held in Rabbi Trust:</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Cash equivalents</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">72</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">72</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Fixed income securities</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">8,427</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">8,427</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Equity securities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">13,054</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">13,054</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Total investments measured at fair value</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">21,553</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">21,553</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;padding-bottom:8px;padding-top:8px;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15" rowspan="1"></td></tr><tr><td style="width:52%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:9%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:9%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;font-weight:bold;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="13" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Fair Value as of December 31, 2018</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">(dollars in thousands)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Level 1</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Level 2</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Level 3</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Fair Value of Assets held in Rabbi Trust:</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:1pt;"><font style="font-family:inherit;font-size:1pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Cash equivalents</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">166</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">166</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Fixed income securities</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">6,251</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">6,251</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Equity securities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">9,995</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">9,995</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Total investments measured at fair value</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">16,412</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">—</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">16,412</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div></div>

Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of share-based compensation expenses



	AWR						GSWC
	For The Years Ended December 31,						For The Years Ended December 31,
(in thousands)	2019		2018		2017		2019		2018		2017
Stock-based compensation related to:
Restricted stock units	$	2,517	$	3,851	$	2,885	$	2,253	$	3,397	$	2,420
Total stock-based compensation expense	$	2,517	$	3,851	$	2,885	$	2,253	$	3,397	$	2,420

Schedule of assumptions used to estimate fair value of each option grant on the grant date using the Black-Scholes option-pricing model

will be earned based on Registrant’s TSR compared to the TSR for a specific peer group of investor-owned water companies.

A summary of the status of Registrant’s outstanding performance awards to officers as of December 31, 2019, and changes during the year ended December 31, 2019, is presented below:



	Number of Performance awards		Weighted Average Grant-Date Value
Performance awards at January 1, 2019	95,661		$	45.36
Granted	22,035		65.86
Performance criteria adjustment	1,772		38.14
Vested	(33,080	)	41.15
Forfeited	(1,739	)	61.74
Performance awards at December 31, 2019	84,649		$	51.85

Summary of stock option activity

Summary of the status of Registrant's outstanding restricted stock units to employees and directors

A summary of the status of Registrant’s outstanding RSUs, excluding performance awards, to employees and directors as of December 31, 2019, and changes during the year ended December 31, 2019, is presented below:



	Number of Restricted Share Units		Weighted Average Grant-Date Value
Restricted share units at January 1, 2019	102,235		$	34.73
Granted	23,550		67.57
Vested	(48,017	)	30.99
Forfeited	(2,697	)	48.64
Restricted share units at December 31, 2019	75,071		$	46.92

Commitments (Tables)

12 Months Ended

Dec. 31, 2019

Risks and Uncertainties [Abstract]

Schedule of estimated future minimum payments under purchased water supply commitments

GSWC’s estimated future minimum payments under these purchased water supply commitments at December 31, 2019 are as follows (in thousands):



2020	$	417
2021	417
2022	417
2023	417
2024	417
Thereafter	2,031
Total	$	4,116

Maturities of operating lease liabilities

.Registrant’s future minimum payments under long-term non-cancelable operating leases are as follows (in thousands):



	December 31, 2019		December 31, 2018
2020	$	2,709	$	2,530
2021	2,533		1,497
2022	2,217		1,007
2023	1,779		546
2024	1,499		293
Thereafter	5,246		311
Total lease payments	15,983		$	6,184
Less: imputed interest	2,395
Total lease obligations	13,588
Less: current obligations	1,849
Long-term lease obligations	$	11,739

Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Supplemental lease information

Registrant's supplemental lease information for the year ended December 31, 2019 is as follows (in thousands, except for weighted average data):



	For The Year Ended December 31, 2019

Operating lease costs	$	3,166
Short-term lease costs	159

Weighted average remaining lease term (in years)	7.24
Weighted-average discount rate	3.5		%

Non-cash transactions
Lease liabilities arising from obtaining right-of-use assets	$	18,034

Maturities of operating lease liabilities

.Registrant’s future minimum payments under long-term non-cancelable operating leases are as follows (in thousands):



	December 31, 2019		December 31, 2018
2020	$	2,709	$	2,530
2021	2,533		1,497
2022	2,217		1,007
2023	1,779		546
2024	1,499		293
Thereafter	5,246		311
Total lease payments	15,983		$	6,184
Less: imputed interest	2,395
Total lease obligations	13,588
Less: current obligations	1,849
Long-term lease obligations	$	11,739

Business Segments (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Schedule of reporting segments information

Capital additions reflect capital expenditures paid in cash and exclude U.S. government-funded and third-party prime funded capital expenditures for ASUS and property installed by developers and conveyed to GSWC.



	As Of And For The Year Ended December 31, 2019
	GSWC							AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS			Parent			AWR
Operating revenues	$	319,830	$	39,548	$	114,491		$	—		$	473,869
Operating income (loss)	93,895		11,197		21,990			(9		)	127,073
Interest expense, net	20,304		1,228		(734		)	539			21,337
Utility Plant	1,322,062		72,680		20,963			—			1,415,705
Depreciation and amortization expense (1)	29,956		2,485		2,956			—			35,397
Income tax expense/(benefit)	17,295		2,882		5,202			(709		)	24,670
Capital additions	131,353		11,499		9,088			—			151,940



	As Of And For The Year Ended December 31, 2018
	GSWC							AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS			Parent			AWR
Operating revenues	$	295,258	$	34,350	$	107,208		$	—		$	436,816
Operating income	74,342		6,220		20,414			7			100,983
Interest expense, net	18,403		1,328		(327		)	451			19,855
Utility Plant	1,218,468		62,624		15,218			—			1,296,310
Depreciation and amortization expense (1)	36,137		2,258		2,030			—			40,425
Income tax expense/(benefit)	12,391		1,212		4,939			(525		)	18,017
Capital additions	110,934		5,420		10,207			—			126,561



	As Of And For The Year Ended December 31, 2017
	GSWC						AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS		Parent			AWR
Operating revenues	$	306,332	$	33,969	$	100,302	$	—		$	440,603
Operating income (loss)	98,678		7,193		21,320		(96		)	127,095
Interest expense, net	18,909		1,380		255		248			20,792
Utility Plant	1,137,995		59,945		7,052		—			1,204,992
Depreciation and amortization expense (1)	35,706		2,146		1,179		—			39,031
Income tax expense/(benefit)	32,212		1,847		7,136		(2,221		)	38,974
Capital additions	104,546		5,941		2,639		—			113,126

Schedule of reconciliation of total utility plant (a key figure for rate-making) to total consolidated assets

The following table reconciles total utility plant (a key figure for rate-making) to total consolidated assets (in thousands):



	December 31,
	2019		2018
Total utility plant	$	1,415,705	$	1,296,310
Other assets	225,626		205,123
Total consolidated assets	$	1,641,331	$	1,501,433

Allowance for Doubtful Accounts (Tables)

12 Months Ended

Dec. 31, 2019

Allowance for Doubtful Accounts

Schedule of provision for doubtful accounts charged to expense and accounts written off, net of recoveries



	AWR
	December 31,
(dollars in thousands)	2019			2018			2017
Balance at beginning of year	$	951		$	1,041		$	764
Provision charged to expense	609			841			989
Accounts written off, net of recoveries	(644		)	(931		)	(712		)
Balance at end of year	$	916		$	951		$	1,041

Allowance for doubtful accounts related to accounts receivable-customer	$	857		$	892		$	806
Allowance for doubtful accounts related to other accounts receivable	59			59			235
Total allowance for doubtful accounts	$	916		$	951		$	1,041



	GSWC
	December 31,
(dollars in thousands)	2019			2018			2017
Balance at beginning of year	$	951		$	865		$	761
Provision charged to expense	607			850			816
Accounts written off, net of recoveries	(642		)	(764		)	(712		)
Balance at end of year	$	916		$	951		$	865

Allowance for doubtful accounts related to accounts receivable-customer	$	857		$	892		$	806
Allowance for doubtful accounts related to other accounts receivable	59			59			59
Total allowance for doubtful accounts	$	916		$	951		$	865

Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2019

Supplemental Cash Flow Elements [Abstract]

Schedule of non-cash financing and investing activities and other cash flow information

The following table sets forth non-cash financing and investing activities and other cash flow information (in thousands).



	AWR						GSWC
	December 31,						December 31,
	2019		2018		2017		2019		2018		2017
Taxes and Interest Paid:
Income taxes paid, net	$	22,496	$	21,084	$	13,615	$	17,206	$	19,448	$	4,822
Interest paid, net of capitalized interest	25,080		23,471		22,762		23,925		22,721		22,285

Non-Cash Transactions:
Accrued payables for investment in utility plant	$	23,736	$	27,403	$	20,131	$	23,736	$	27,403	$	20,128
Property installed by developers and conveyed	6,220		2,082		2,082		6,220		2,082		2,082

Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Data [Abstract]

Quarterly Financial Information

Registrant's business is seasonal, and it is management’s opinion that comparisons of earnings for the quarterly periods do not reflect overall trends and changes in Registrant’s operations.



	AWR
	For The Year Ended December 31, 2019
(in thousands, except per share amounts)	First Quarter		Second Quarter (1)		Third Quarter (2)		Fourth Quarter		Year
Operating revenues	$	101,733	$	124,647	$	134,496	$	112,993	$	473,869
Operating income	20,195		39,430		42,724		24,724		127,073
Net income	12,852		26,784		28,006		16,700		84,342
Basic earnings per share	0.35		0.72		0.76		0.45		2.28
Diluted earnings per share	0.35		0.72		0.76		0.45		2.28



	GSWC
	For The Year Ended December 31, 2019
(in thousands)	First Quarter		Second Quarter (1)		Third Quarter (2)		Fourth Quarter		Year
Operating revenues	$	75,352	$	95,548	$	107,245	$	81,233	$	359,378
Operating income	15,327		34,037		36,982		18,746		105,092
Net income	9,022		22,298		23,362		11,981		66,663



	AWR
	For The Year Ended December 31, 2018
(in thousands, except per share amounts)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year
Operating revenues	$	94,728	$	106,901	$	124,182	$	111,005	$	436,816
Operating income	18,691		25,568		33,975		22,749		100,983
Net income	10,782		16,348		22,952		13,789		63,871
Basic earnings per share *	0.29		0.44		0.62		0.37		1.73
Diluted earnings per share	0.29		0.44		0.62		0.37		1.72



	GSWC
	For The Year Ended December 31, 2018
(in thousands)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year
Operating revenues	$	74,244	$	84,574	$	95,564	$	75,226	$	329,608
Operating income	16,297		22,645		27,540		14,080		80,562
Net income	8,890		13,648		17,919		7,555		48,012

* The sum of the quarterly basic earnings per share amounts do not agree to the yearly total due to rounding.


(1)	The second quarter of 2019 includes approximately $4.0 million of operating income related to the first quarter of 2019 as a result of the final CPUC decision on the water general rate case, which was received in May 2019 and was retroactive to January 1, 2019.

(2)

Summary of Significant Accounting Policies (Details) customer in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) registrant customer shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)	Feb. 11, 2020 USD ($)	Mar. 31, 2019 USD ($)	Jan. 01, 2019 USD ($)
Accounting Policies [Line Items]
Asset Retirement Obligation, Legally Restricted Assets, Fair Value	$ 0
Reinvested earnings in the business	$ 345,964,000	$ 304,534,000						$ 0
Number of registrants filing combined report \| registrant	2
Operating Lease, Liability	$ 13,588,000							8,000,000.0
Goodwill
Goodwill arose from acquisition of subcontractor's business	1,100,000	1,100,000
Related Party Transaction, Amounts of Transaction	4,700,000	4,200,000	$ 4,000,000.0
Impairment of Long-Lived Assets
Impairment of long-lived assets	$ 0	0	$ 0
Fair Value of Financial Instruments
Short-term Debt, Terms	P24M
Notes Payable to Bank	$ 205,000,000.0
Notes payable to banks	5,000,000	0
Debt Issuance Costs, Net	3,359,000	3,571,000
Maximum borrowing capacity	$ 225,000,000.0
Nature of Operations:
Number of customers served \| customer	1,000,000,000
Number of States in which Entity Operates	9
Related Party Transactions
Operating lease right-of-use assets	$ 13,168,000	$ 0						$ 7,600,000
Property and Depreciation
Stock Issued During Period, Shares, New Issues \| shares	88,772	44,906	56,498
Sales and Use Taxes:
Non-income tax assessments accounted on a gross basis	$ 20,042,000	$ 18,404,000	$ 17,905,000
Long-term Debt [Member]
Fair Value of Financial Instruments
Notes Payable to Bank	$ 205,000,000.0
6.70% notes due 2019
Fair Value of Financial Instruments
Interest rate per annum (as a percent)	6.70%	6.70%
Contracted services:
Related Party Transactions
Period of Fixed Price Contracts to Maintain Water Systems at Various Military Bases	50 years
GSWC
Accounting Policies [Line Items]
Reinvested earnings in the business	$ 257,434,000	$ 211,163,000
Issuance of Common Shares		47,500,000
Advances for Construction and Contributions in aid of Constructions
Period for refund of advances for construction	40 years
Alternative-Revenue Programs
Number of months within which expected additional revenue collection is recorded	24 months
Estimated useful lives of utility plant, as authorized by the CPUC
Generation	40 years
Fair Value of Financial Instruments
Long-term debt-GSWC	$ 376,467,000
Debt Issuance Costs, Net	3,359,000	3,571,000
Related Party Transactions
Intercompany payable to Parent	158,845,000	0
Inter-company payable to Parent	0	57,289,000
Operating lease right-of-use assets	$ 12,745,000	$ 0
Property and Depreciation
Aggregate composite rate for depreciation (as a percent)	2.20%	2.70%	2.60%
Depreciation	$ 31,700,000	$ 37,300,000	$ 36,500,000
Depreciation on transportation equipment	316,000	238,000	242,000
Sales and Use Taxes:
Non-income tax assessments accounted on a gross basis	18,168,000	16,809,000	$ 16,402,000
GSWC \| Short-term Debt [Member]
Fair Value of Financial Instruments
Notes payable to banks	5,000,000.0
GSWC \| Level 1
Fair Value of Financial Instruments
Long-term debt-GSWC	0
GSWC \| Level 3
Fair Value of Financial Instruments
Long-term debt-GSWC	0
GSWC \| Carrying Amount
Fair Value of Financial Instruments
Long-term debt-GSWC	284,699,000	324,978,000
GSWC \| Fair Value
Fair Value of Financial Instruments
Long-term debt-GSWC		$ 387,889,000
GSWC \| Fair Value \| Level 2
Fair Value of Financial Instruments
Long-term debt-GSWC	$ 376,467,000
GSWC \| Minimum
Estimated useful lives of utility plant, as authorized by the CPUC
Source of water supply	30 years
Pumping	25 years
Water treatment	20 years
Transmission and distribution	25 years
Other plant	7 years
GSWC \| Maximum
Estimated useful lives of utility plant, as authorized by the CPUC
Source of water supply	50 years
Pumping	40 years
Water treatment	35 years
Transmission and distribution	55 years
Other plant	40 years
GSWC \| 6.70% notes due 2019
Fair Value of Financial Instruments
Debt Instrument, Annual Principal Payment							$ 40,000,000
Interest rate per annum (as a percent)	6.70%	6.70%					6.70%
GSWC \| Water:
Nature of Operations:
Number of customers served \| customer	261
GSWC \| Electric:
Nature of Operations:
Number of customers served \| customer	24
American States Utility Services [Member] \| Contracted services:
Nature of Operations:
Period of fixed price contracts to operate and maintain the water and/or wastewater systems at various military bases	50 years
Sales [Member] \| GSWC \| Water:
Nature of Operations:
Percentage of total revenues	90.00%
Sales [Member] \| GSWC \| Electric:
Nature of Operations:
Percentage of total revenues	90.00%
AWR
Fair Value of Financial Instruments
Notes payable to banks	$ 5,000,000	$ 0
Maximum borrowing capacity	$ 225,000,000.0
AWR \| Subsequent Event [Member]
Fair Value of Financial Instruments
Maximum borrowing capacity				$ 200,000,000.0	$ 200,000,000.0	$ 260,000,000.0
AWR \| Syndicated revolving credit facility
Fair Value of Financial Instruments
Maximum borrowing capacity							$ 200,000,000.0
AWR \| Syndicated revolving credit facility \| Minimum
Interest
Line of Credit Facility, Current Borrowing Capacity							$ 150,000,000.0
Common Stock [Member]
Property and Depreciation
Stock Issued During Period, Shares, New Issues \| shares	89,000	77,000	110,000
Common Stock [Member] \| GSWC
Property and Depreciation
Stock Issued During Period, Shares, New Issues \| shares		19

Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
Revenues (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue, Performance Obligation, Payment Terms	20 days
Cost of services	$ 55,673	$ 53,906	$ 49,838
GSWC
Disaggregation of Revenue [Line Items]
Period within which Expected Additional Revenue Collection is Recorded Subject to Undercollection of Revenue	24 months
Contracted services: \| American States Utility Services [Member]
Disaggregation of Revenue [Line Items]
Period of Fixed Price Contracts to Operate and Maintain Water Systems at Various Military Bases	50 years
Sales [Member] \| Water: \| GSWC
Disaggregation of Revenue [Line Items]
Percentage of total revenues	90.00%
Sales [Member] \| Electric: \| GSWC
Disaggregation of Revenue [Line Items]
Percentage of total revenues	90.00%
Franchisor \| GSWC
Disaggregation of Revenue [Line Items]
Cost of services	$ 4,000	$ 3,600	$ 3,600

Revenues Disaggregation of Revenue (Details) $ in Thousands	3 Months Ended								12 Months Ended
Revenues Disaggregation of Revenue (Details) $ in Thousands	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) unit	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Disaggregation of Revenue [Line Items]
Prerequisites for Billing, Long-term Contracts									P5Y
BRRAM over-collection (alternative revenue program)									$ (39,548)	$ (34,350)	$ (33,969)
Operating revenues	$ 112,993	$ 134,496	$ 124,647	$ 101,733	$ 111,005	$ 124,182	$ 106,901	$ 94,728	473,869	436,816	440,603
GSWC
Disaggregation of Revenue [Line Items]
BRRAM over-collection (alternative revenue program)									(39,548)	(34,350)	(33,969)
Operating revenues	$ 81,233	$ 107,245	$ 95,548	$ 75,352	$ 75,226	$ 95,564	$ 84,574	$ 74,244	359,378	329,608	340,301
GSWC \| Water:
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									311,572	303,593
Regulated Operating Revenue									8,258	(8,335)
Operating revenues									319,830	295,258	306,332
GSWC \| Water: \| Tariff-based revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									305,244	298,818
GSWC \| Water: \| CPUC-approved surcharges (cost-recovery activities)
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									4,322	2,962
GSWC \| Water: \| Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									2,006	1,813
GSWC \| Electric:
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									37,038	34,715
BRRAM over-collection (alternative revenue program)									2,510	(365)
Operating revenues									39,548	34,350	33,969
GSWC \| Electric: \| Tariff-based revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									36,628	34,501
GSWC \| Electric: \| CPUC-approved surcharges (cost-recovery activities)
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									$ 410	214
American States Utility Services [Member] \| Contracted services:
Disaggregation of Revenue [Line Items]
Period of Fixed Price Contracts to Operate and Maintain Water Systems at Various Military Bases									50 years
Revenue from contract with customers									$ 114,491	107,208
Operating revenues									$ 114,491	107,208	$ 100,302
Number of construction performance obligation \| unit									1
American States Utility Services [Member] \| Contracted services: \| Water
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									$ 59,868	62,273
American States Utility Services [Member] \| Contracted services: \| Wastewater
Disaggregation of Revenue [Line Items]
Revenue from contract with customers									$ 54,623	$ 44,935

Revenues Contract assets and Contract Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Contract with Customer, Asset and Liability [Line Items]
Contract with Customer, Liability, Revenue Recognized	$ 7,300
Revenue, Remaining Performance Obligation, Amount	3,200,000
American States Utility Services [Member]
Contract with Customer, Asset and Liability [Line Items]
Government Contract Receivable, Unbilled Amounts	10,467	$ 5,696
Government Contract Receivable	64,819	61,126
Contract assets	15,631	24,447
Contract liabilities	$ 11,167	$ 7,530
Minimum \| American States Utility Services [Member]
Contract with Customer, Asset and Liability [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	36 years
Maximum [Member] \| American States Utility Services [Member]
Contract with Customer, Asset and Liability [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	50 years
Contracted services: \| American States Utility Services [Member]
Contract with Customer, Asset and Liability [Line Items]
Period of Fixed Price Contracts to Operate and Maintain Water Systems at Various Military Bases	50 years

Regulatory Matters (Details) - USD ($)	1 Months Ended		12 Months Ended
Regulatory Matters (Details) - USD ($)	Oct. 31, 2005	Jul. 31, 2005	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Regulatory matters:
Regulatory Assets			$ 2,700,000
Regulatory Asset Not Accruing Carrying Costs			43,100,000
Various refunds to customers
Regulatory matters:
Decrease in revenues requirement to reflect the newly adopted Cost of Capital for GSWC			982,000
Water Revenue Adjustment Mechanism [Member]
Regulatory matters:
Regulatory adjustment			16,300,000
Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Regulatory Asset Not Accruing Carrying Costs			43,400,000
GSWC
Regulatory matters:
Total			(2,450,000)	$ (28,340,000)
GSWC \| Revenue Subject to Refund for TCJA [Member]
Regulatory matters:
Total			0	(8,293,000)
GSWC \| Various refunds to customers
Regulatory matters:
Total			(8,478,000)	(7,517,000)
GSWC \| Revenue Subject to Refund for TCJA [Member]
Regulatory matters:
Adjustments recorded to revalue deferred taxes as a result of the tax cut and job act of 2017 impact				7,100,000
GSWC \| WRAM, net of MCBA
Regulatory matters:
Total			22,535,000	17,763,000
GSWC \| Water Revenue Adjustment Mechanism [Member]
Regulatory matters:
Total			11,000,000.0
Water			0
GSWC \| Costs deferred for future recovery on Aerojet case
Regulatory matters:
Total			8,292,000	9,516,000
Regulatory Asset Recovery Periods		20 years
GSWC \| Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Regulatory Assets			43,400,000
Total			40,693,000	33,124,000
GSWC \| Gain (Loss) on Derivative Instruments [Member]
Regulatory matters:
Total			3,171,000	311,000
GSWC \| Flow-through taxes, net
Regulatory matters:
Total			(12,439,000)	(15,273,000)
GSWC \| Deferred Income Tax Charge [Member]
Regulatory matters:
Total			(79,886,000)	(81,465,000)
GSWC \| Other regulatory assets, net
Regulatory matters:
Total			18,842,000	18,440,000
GSWC \| General Rate Case Memorandum Accounts [Member]
Regulatory matters:
Total			$ 4,820,000	5,054,000
GSWC \| Other Regulatory Assets (Liabilities) [Member]
Regulatory matters:
Total					$ 1,100,000
Electric general rate case [Member] [Member] \| Revenues retroactive due to GRC delay [Member]
Regulatory matters:
Regulatory adjustment				$ 2,300,000
Minimum \| GSWC \| General Rate Case Memorandum Accounts [Member]
Regulatory matters:
Regulatory Asset Recovery Periods			12 months
Maximum \| GSWC \| WRAM, net of MCBA
Regulatory matters:
Regulatory Asset Recovery Periods			24 months
Maximum \| GSWC \| Costs deferred for future recovery on Aerojet case
Regulatory matters:
Regulatory Asset Recovery Periods	20 years
Maximum \| GSWC \| General Rate Case Memorandum Accounts [Member]
Regulatory matters:
Regulatory Asset Recovery Periods			36 months
Under Collection in Two Way Pension Balancing Account [Member] \| GSWC \| Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Regulatory adjustment			$ (2,700,000)

Regulatory Matters 2 (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
Regulatory Matters 2 (Details) - USD ($) $ in Thousands	Oct. 31, 2005	Jul. 31, 2005	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Regulatory matters:
Regulatory Asset Not Accruing Carrying Costs			$ 43,100
Water			319,830	$ 295,258	$ 306,332
Regulatory Assets			2,700
Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Regulatory Asset Not Accruing Carrying Costs			43,400
WRAM
Regulatory matters:
Regulatory adjustment			$ 16,300
Cost of Capital, Proceeding for Water Regions [Member]
Regulatory matters:
Weighted Cost of Capital Percent			8.34%
GSWC
Regulatory matters:
Under (over) collection			$ 2,450	28,340
Water			319,830	295,258	$ 306,332
GSWC \| Deferred Income Tax Charge [Member]
Regulatory matters:
Under (over) collection			79,886	81,465
GSWC \| Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Under (over) collection			(40,693)	(33,124)
Regulatory Assets			43,400
GSWC \| Costs deferred for future recovery on Aerojet case
Regulatory matters:
Under (over) collection			(8,292)	(9,516)
Recovery period		20 years
Increase in Revenue Requirement, Recoverable through Surcharges		$ 21,300
GSWC \| Costs deferred for future recovery on Aerojet case \| Maximum
Regulatory matters:
Recovery period	20 years
GSWC \| Gain (Loss) on Derivative Instruments [Member]
Regulatory matters:
Under (over) collection			(3,171)	(311)
GSWC \| Flow-through taxes, net
Regulatory matters:
Under (over) collection			12,439	15,273
GSWC \| General Rate Case Memorandum Accounts [Member]
Regulatory matters:
Under (over) collection			$ (4,820)	(5,054)
GSWC \| General Rate Case Memorandum Accounts [Member] \| Minimum
Regulatory matters:
Recovery period			12 months
GSWC \| General Rate Case Memorandum Accounts [Member] \| Maximum
Regulatory matters:
Recovery period			36 months
GSWC \| WRAM, net of MCBA
Regulatory matters:
Commercial paper, term			90 days
Amount billed to customers as surcharges			$ 11,600
Under (over) collection			$ (22,535)	(17,763)
GSWC \| WRAM, net of MCBA \| Maximum
Regulatory matters:
Recovery period			24 months
GSWC \| WRAM
Regulatory matters:
Under (over) collection			$ (11,000)
GSWC \| Modified Cost Balancing Account
Regulatory matters:
Under (over) collection			$ (11,500)
GSWC \| Cost of Capital, Proceeding for Water Regions [Member]
Regulatory matters:
Weighted Cost of Capital Percent			7.91%
Revenue Subject to Refund for TCJA [Member] \| GSWC
Regulatory matters:
Under (over) collection			$ 0	8,293
Various refunds to customers \| GSWC
Regulatory matters:
Under (over) collection			8,478	$ 7,517
Under Collection in Two Way Pension Balancing Account [Member] \| GSWC \| Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Regulatory adjustment			$ (2,700)

Regulatory Matters 3 (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Regulatory matters:
Regulatory asset authorized under settlement	$ 2,700
Other Liabilities, Current	10,341	$ 10,731
GSWC
Regulatory matters:
Under (over) collection	(2,450)	(28,340)
Other Liabilities, Current	9,745	9,432
Other Regulatory Assets Net [Member] \| GSWC
Regulatory matters:
Under (over) collection	18,842	18,440
Pension Costs and Other Postretirement Benefit Costs \| GSWC
Regulatory matters:
Regulatory asset authorized under settlement	43,400
Under (over) collection	40,693	$ 33,124
Two-way pension balancing account \| Water Service Utility Operations [Member] \| Pension Costs and Other Postretirement Benefit Costs \| GSWC
Regulatory matters:
Regulatory asset authorized under settlement	(1,500)
Two-way pension balancing account \| Electric: \| Pension Costs and Other Postretirement Benefit Costs \| GSWC
Regulatory matters:
Regulatory asset authorized under settlement	$ (1,200)

Regulatory Matters 4 (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
Regulatory Matters 4 (Details) - USD ($) $ in Millions	Oct. 31, 2005	Jul. 31, 2005	Dec. 31, 2019
Regulatory matters:
Regulatory asset authorized under settlement			$ 2.7
GSWC \| Costs deferred for future recovery on Aerojet case
Regulatory matters:
Increase in Revenue Requirement, Recoverable through Surcharges		$ 21.3
Recovery period		20 years
Reimbursement to recover costs			$ 17.5
GSWC \| Costs deferred for future recovery on Aerojet case \| Maximum
Regulatory matters:
Recovery period	20 years
GSWC \| Water Revenue Adjustment Mechanism Net of Modified Cost Balancing Account [Member] \| Maximum
Regulatory matters:
Recovery period			24 months

Regulatory Matters 5 (Details) - USD ($) $ in Thousands	12 Months Ended
Regulatory Matters 5 (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Regulatory matters:
Regulatory asset	$ 2,700
GSWC
Regulatory matters:
Total	(2,450)	$ (28,340)
GSWC \| Revenue Subject to Refund for TCJA [Member]
Regulatory matters:
Adjustments recorded to revalue deferred taxes as a result of the tax cut and job act of 2017 impact		7,100
GSWC \| Pension Costs and Other Postretirement Benefit Costs
Regulatory matters:
Regulatory asset	43,400
Total	40,693	33,124
GSWC \| General Rate Case Memorandum Accounts [Member]
Regulatory matters:
Total	$ 4,820	$ 5,054
Maximum [Member] \| GSWC \| General Rate Case Memorandum Accounts [Member]
Regulatory matters:
Regulatory Asset Recovery Periods	36 months
Minimum \| GSWC \| General Rate Case Memorandum Accounts [Member]
Regulatory matters:
Regulatory Asset Recovery Periods	12 months

Regulatory Matters 6 (Details)	1 Months Ended	12 Months Ended
Regulatory Matters 6 (Details)	Dec. 31, 2012 renewable_energy	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2019 USD ($)
Regulatory matters:
Regulatory asset authorized under settlement		$ 2,700,000
Cost of Capital, Proceeding for Water Regions [Member]
Regulatory matters:
Weighted Cost of Capital Percent		8.34%
Settlement Agreement Proposed Authorized Return on Equity Percentage		9.43%
GSWC
Regulatory matters:
Net regulatory assets		$ (2,450,000)	$ (28,340,000)
GSWC \| Renewables Portfolio Standard [Member]
Regulatory matters:
Derivative, Term of Contract	10 years
Number of renewable energy credits that would be purchased \| renewable_energy	578,000
Provision for Other Losses		$ 0
GSWC \| Cost of Capital, Proceeding for Water Regions [Member]
Regulatory matters:
Return on Equity Percentage		8.90%
Weighted Cost of Capital Percent		7.91%
GSWC \| Other Regulatory Assets (Liabilities) [Member]
Regulatory matters:
Net regulatory assets				$ 1,100,000
Electric general rate case [Member] [Member] \| Revenues retroactive due to GRC delay [Member]
Regulatory matters:
Regulatory adjustment			2,300,000
Electric Service Utility Operations [Member] \| Electric general rate case [Member] [Member]
Regulatory matters:
Return on Equity Percentage		9.60%
Settlement Agreement Proposed Authorized Return on Equity Percentage		9.95%
Various refunds to customers
Regulatory matters:
Decrease in revenues requirement to reflect the newly adopted Cost of Capital for GSWC		$ 982,000
Various refunds to customers \| GSWC
Regulatory matters:
Net regulatory assets		$ (8,478,000)	$ (7,517,000)
Water Service Utility Operations [Member]
Regulatory matters:
Number of parties		3
Electric Service Utility Operations [Member]
Regulatory matters:
Number of parties		2

Utility Plant and Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Utility plant utilized in continuing operations by major asset class
Total amortized intangible assets	$ 29,989	$ 30,822
Total utility plant, at cost	1,839,421	1,780,110
Less - accumulated depreciation	(543,263)	(561,855)
Construction work in progress	(119,547)	(78,055)
Net utility plant	1,415,705	1,296,310	$ 1,204,992
American States Utility Services [Member] \| Intangible Assets [Member]
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	571	571
Water Service Utility Operations [Member]
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	1,730,996	1,674,046
Water Service Utility Operations [Member] \| Land
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	18,066	14,890
Water Service Utility Operations [Member] \| Intangible Assets [Member]
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	28,578	29,412
Water Service Utility Operations [Member] \| Source of water supply
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	91,685	91,349
Water Service Utility Operations [Member] \| Pumping
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	178,058	182,673
Water Service Utility Operations [Member] \| Water treatment
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	78,048	82,198
Water Service Utility Operations [Member] \| Transmission and distribution
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	1,219,285	1,142,105
Water Service Utility Operations [Member] \| General
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	117,276	131,419
Electric:
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	108,425	106,064
Electric: \| Intangible Assets [Member]
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	1,200	1,200
Electric: \| Transmission and distribution
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	84,018	82,257
Electric: \| Generation
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	12,583	12,583
Electric: \| General
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	11,824	11,224
GSWC
Utility plant utilized in continuing operations by major asset class
Total amortized intangible assets	29,418	30,251
Total utility plant, at cost	1,808,867	1,755,599
Less - accumulated depreciation	(531,801)	(551,244)
Construction work in progress	(117,676)	(76,737)
Net utility plant	1,394,742	1,281,092
GSWC \| Water Service Utility Operations [Member]
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	1,700,442	1,649,535
Net utility plant	1,322,062	1,218,468	1,137,995
GSWC \| Water Service Utility Operations [Member] \| Land
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	18,066	14,890
GSWC \| Water Service Utility Operations [Member] \| Intangible Assets [Member]
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	28,578	29,413
GSWC \| Water Service Utility Operations [Member] \| Source of water supply
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	91,685	91,349
GSWC \| Water Service Utility Operations [Member] \| Pumping
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	178,058	182,673
GSWC \| Water Service Utility Operations [Member] \| Water treatment
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	78,048	82,198
GSWC \| Water Service Utility Operations [Member] \| Transmission and distribution
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	1,219,285	1,142,105
GSWC \| Water Service Utility Operations [Member] \| General
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	86,722	106,907
GSWC \| Electric:
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	108,425	106,064
Net utility plant	72,680	62,624	$ 59,945
GSWC \| Electric: \| Transmission and distribution
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	84,018	82,257
GSWC \| Electric: \| Generation
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	12,583	12,583
GSWC \| Electric: \| General
Utility plant utilized in continuing operations by major asset class
Total utility plant, at cost	11,824	11,224
Conservation [Member]
Utility plant utilized in continuing operations by major asset class
Total amortized intangible assets	9,486	9,486
Conservation [Member] \| GSWC
Utility plant utilized in continuing operations by major asset class
Total amortized intangible assets	$ 9,486	$ 9,486

Utility Plant and Intangible Assets 2 (Details) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2017

Total utility plant, at cost

$ 1,839,421

$ 1,780,110

Less - accumulated amortization

29,989

30,822

(24,309)

(24,399)

Intangible assets, net of amortization

5,680

6,423

Unamortized intangible assets

^[1]

402

422

Amortization of intangible assets

1,300

1,100

$ 1,500

Estimated future consolidated amortization expenses related to intangible assets

$ 138

Conservation [Member]

Acquired Finite-lived Intangible Assets, Weighted Average Useful Life

3 years

Water and water service rights

$ 9,486

9,486

Acquired Finite-lived Intangible Assets, Weighted Average Useful Life

30 years

^[2]

$ 8,695

8,695

Water planning studies

Acquired Finite-lived Intangible Assets, Weighted Average Useful Life

14 years

$ 11,808

12,641

Total utility plant, at cost

1,808,867

1,755,599

Less - accumulated amortization

29,418

30,251

(24,166)

(24,268)

Intangible assets, net of amortization

5,252

5,983

Unamortized intangible assets

^[1]

$ 402

$ 404

GSWC | Conservation [Member]

Acquired Finite-lived Intangible Assets, Weighted Average Useful Life

3 years

GSWC | Water and water service rights

$ 9,486

Acquired Finite-lived Intangible Assets, Weighted Average Useful Life

30 years

GSWC | Water planning studies

^[2]

$ 8,124

Acquired Finite-lived Intangible Assets, Weighted Average Useful Life

14 years

Intangible Assets [Member] | American States Utility Services [Member]

$ 11,808

$ 12,641

Total utility plant, at cost

$ 571

[1]	The intangible assets not subject to amortization primarily consist of organization and consent fees.
[2]	Includes intangible assets of $571,000 for contracted services included in "Other Property and Investments" on the consolidated balance sheets as of December 31, 2019 and 2018.

Utility Plant and Intangible Assets 3 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of the beginning and ending aggregate carrying amount of the asset retirement obligations
Obligation at the beginning of the period	$ 5,228	$ 4,963
Additional liabilities incurred	271	256
Liabilities settled	(173)	(46)
Accretion	86	55
Asset Retirement Obligation, Revision of Estimate	3,451
Obligation at the end of the period	$ 8,863	$ 5,228
Wells and Related Equipment and Facilities [Member]
Intangible assets
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	50 years

Derivative Instruments (Details) MWh in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) MWh	Dec. 31, 2018 USD ($)
Purchase power contract
Changes in the fair value of the derivative
Balance, at end of the period	$ (3,200)
GSWC
Derivative instruments
Derivative Activity Volume \| MWh	638
GSWC \| Purchase power contract
Changes in the fair value of the derivative
Balance, at beginning of the period	$ 311	$ 2,941
Unrealized (loss) gain on purchased power contracts	(2,860)	2,630
Balance, at end of the period	$ (3,171)	$ 311
Minimum \| GSWC \| Purchase power contract
Derivative instruments
Derivative, Term of Contract	3 years
Maximum \| GSWC \| Purchase power contract
Derivative instruments
Derivative, Term of Contract	5 years

Military Privatization (Details) $ in Thousands	3 Months Ended								12 Months Ended
Military Privatization (Details) $ in Thousands	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Military Privatization
Contract liabilities (Note 2)	$ 11,167				$ 7,530				$ 11,167	$ 7,530
Receivables from the U.S. government:
Less: allowance for doubtful accounts	(916)				(951)				(916)	(951)	$ (1,041)	$ (764)
Pretax income
Increase in pretax operating income	$ 24,724	$ 42,724	$ 39,430	$ 20,195	$ 22,749	$ 33,975	$ 25,568	$ 18,691	$ 127,073	100,983	127,095
Contracted services:
Military Privatization
Period of fixed price contracts to maintain water systems at various military bases									50 years
Number of Operating Segments									8
American States Utility Services [Member] \| Contracted services:
Pretax income
Increase in pretax operating income									$ 21,990	$ 20,414	21,320
Reportable Legal Entities [Member] \| American States Utility Services [Member] \| Contracted services:
Military Privatization
Revenue Recognition, Retrospective Rate-Setting Systems, Amount											$ 1,000

Earnings Per Share and Capital Stock (Details) - USD ($)

3 Months Ended

12 Months Ended

Dec. 31, 2019

Sep. 30, 2019

Jun. 30, 2019

Mar. 31, 2019

Dec. 31, 2018

Sep. 30, 2018

Jun. 30, 2018

Mar. 31, 2018

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2017

Basic

Net Income

$ 16,700,000

$ 28,006,000

$ 26,784,000

$ 12,852,000

$ 13,789,000

$ 22,952,000

$ 16,348,000

$ 10,782,000

$ 84,342,000

$ 63,871,000

$ 69,367,000

Less: Distributed earnings to common shareholders

42,702,000

38,937,000

36,417,000

Less: Distributed earnings to participating securities

180,000

204,000

197,000

Undistributed earnings

41,460,000

24,730,000

32,753,000

Undistributed earnings allocated to common shareholders

41,285,000

24,601,000

32,577,000

Undistributed earnings allocated to participating securities

129,000

176,000

Total income available to common shareholders, basic

$ 83,987,000

$ 63,538,000

$ 68,994,000

Weighted average Common Shares outstanding, basic

36,814,000

36,733,000

36,638,000

Basic earnings per Common Share:

Earnings Per Share, Basic

$ 0.45

$ 0.76

$ 0.72

$ 0.35

$ 0.37

$ 0.62

$ 0.44

$ 0.29

$ 2.28

$ 1.73

$ 1.88

Diluted

Total income available to common shareholders, basic

$ 83,987,000

$ 63,538,000

$ 68,994,000

Undistributed earnings for dilutive stock options

175,000

129,000

176,000

Total common shareholders earnings, diluted

$ 84,162,000

$ 63,667,000

$ 69,170,000

Weighted average Common Shares outstanding, basic

36,814,000

36,733,000

36,638,000

Stock-based compensation (in shares)

^[1]

150,000

203,000

206,000

Weighted average common shares outstanding, diluted

36,964,000

36,936,000

36,844,000

Diluted earnings per Common Share:

Earnings Per Share, Diluted

$ 0.45

$ 0.76

$ 0.72

$ 0.35

$ 0.37

$ 0.62

$ 0.44

$ 0.29

$ 2.28

$ 1.72

$ 1.88

Share based compensation arrangement

Proceeds from Stock Options Exercised, Distributed to Subsidiaries

$ 0

Dividend Reinvestment Plan Common Stock Capital Shares Reserved for Future Issuance

1,055,948

Common Shares authorized for issuance but unissued under 401(k) Plan

387,300

Restricted Stock Units

Share based compensation arrangement

Restricted stock units outstanding (in shares)

159,720

[1]

Earnings Per Share and Capital Stock 2 (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Capital stock
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic		$ (129,000)	$ (176,000)
Additional disclosure
Common Shares issued under DRP and the Employee Plans	88,772	44,906	56,498
Dividend Reinvestment Plan Common Stock Capital Shares Reserved for Future Issuance	1,055,948
Common Shares authorized for issuance but unissued under 401(k) Plan	387,300
Common Shares issued as a result of the exercise of stock options	30,998	32,142	52,936
Cash proceeds from the exercise of stock options	$ 519,000	$ 546,000	$ 909,000
Proceeds from Stock Options Exercised, Distributed to Subsidiaries	0	0	0
AWR
Additional disclosure
Cash proceeds from the exercise of stock options	$ 519,000	546,000	$ 909,000
GSWC
Additional disclosure
Stock Issued During Period, Value, New Issues		$ 47,500,000
Common Stock [Member]
Additional disclosure
Common Shares issued under DRP and the Employee Plans	89,000	77,000	110,000
Common Stock [Member] \| GSWC
Additional disclosure
Common Shares issued under DRP and the Employee Plans		19

Dividend Limitations (Details)	12 Months Ended
Dividend Limitations (Details)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 01, 2019 USD ($)	Dec. 31, 2016 USD ($)
Dividend limitations
Common shareholder’s equity	$ 601,530,000	$ 558,223,000	$ 529,945,000		$ 494,297,000
Reinvested earnings in the business	345,964,000	304,534,000		$ 0
AWR
Dividend limitations
Common shareholder’s equity	601,530,000	558,223,000
Subsidiaries [Member]
Dividend limitations
Dividends paid	42,700,000	79,000,000.0	36,500,000
GSWC
Dividend limitations
Fixed amount in computing maximum ability to pay dividends	$ 21,000,000.0
Percentage of consolidated net income plus the aggregate net cash proceeds received from capital stock offerings or other instruments convertible into capital stock	100.00%
Amount available to pay dividends under the most restrictive of the Note Agreements	$ 473,900,000
Dividends paid	20,200,000	68,850,000	27,680,000
Common shareholder’s equity	$ 551,188,000	503,575,000	474,374,000		446,770,000
Ratio of Indebtedness to Net Capital	0.4445
Reinvested earnings in the business	$ 257,434,000	211,163,000
GSWC \| Maximum
Dividend limitations
Ratio of Indebtedness to Net Capital	0.6667
Earnings Reinvested in the Business
Dividend limitations
Common shareholder’s equity	$ 345,964,000	304,534,000	279,821,000		247,065,000
Earnings Reinvested in the Business \| GSWC
Dividend limitations
Common shareholder’s equity	257,434,000	$ 211,163,000	$ 232,193,000		$ 206,288,000
Earnings Reinvested in the Business \| American States Utility Services [Member]
Dividend limitations
Reinvested earnings in the business	$ 62,100,000

Bank Debt (Details) - USD ($)	12 Months Ended
Bank Debt (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020	Jun. 30, 2020	Feb. 11, 2020	Mar. 31, 2019
Bank debt
Maximum borrowing capacity	$ 225,000,000.0
Short-term borrowing activities (excluding letters of credit)
Balance outstanding at the end of the period	205,000,000.0
Notes payable to banks	5,000,000	$ 0
Long-term Debt [Member]
Short-term borrowing activities (excluding letters of credit)
Balance outstanding at the end of the period	$ 205,000,000.0
Short-term borrowing (excluding letters of credit)
Short-term borrowing activities (excluding letters of credit)
Notes payable to banks		$ 95,500,000
Interest Rate at the end of the period (as a percent)	2.44%	3.19%
Average amount outstanding	$ 167,392,000	$ 69,559,000
Weighted Average Annual Interest Rate (as a percent)	2.88%	2.66%
Maximum Amount Outstanding	$ 205,500,000	$ 95,500,000
Syndicated revolving credit facility
Bank debt
Variable rate basis	Euro rate
Syndicated revolving credit facility \| Minimum
Short-term borrowing activities (excluding letters of credit)
Interest coverage ratio	3.25
Syndicated revolving credit facility \| Maximum
Short-term borrowing activities (excluding letters of credit)
Total funded debt ratio	0.65
Syndicated revolving credit facility \| Letter of Credit Irrevocable Franchise Agreement with City of Rancho Cordova [Member]
Bank debt
Letter of credit, amount	$ 15,000,000
AWR
Bank debt
Maximum borrowing capacity	225,000,000.0
Short-term borrowing activities (excluding letters of credit)
Notes payable to banks	$ 5,000,000	$ 0
AWR \| Syndicated revolving credit facility
Short-term borrowing activities (excluding letters of credit)
Interest coverage ratio	6.89
Total funded debt ratio	0.45
AWR \| Syndicated revolving credit facility \| Minimum
Short-term borrowing activities (excluding letters of credit)
Interest coverage ratio	3.25
Total funded debt ratio	0.65
AWR \| Syndicated revolving credit facility \| Maximum
Short-term borrowing activities (excluding letters of credit)
Total funded debt ratio	1.00
AWR \| Syndicated revolving credit facility \| Letters of credit
Bank debt
Maximum borrowing capacity	$ 25,000,000.0
Letter of credit, amount	$ 940,000
Letter of credit fee (as a percent)	0.65%
AWR \| Syndicated revolving credit facility \| Letter of Credit Business Automobile Insurance Policy Security [Member]
Bank debt
Letter of credit, amount	$ 340,000
AWR \| Syndicated revolving credit facility \| Letter of Credit - Purchase of power
Bank debt
Letter of credit, amount	$ 585,000,000
Syndicated revolving credit facility \| AWR
Bank debt
Maximum borrowing capacity						$ 200,000,000.0
Syndicated revolving credit facility \| AWR \| Minimum
Bank debt
Line of Credit Facility, Current Borrowing Capacity						$ 150,000,000.0
Subsequent Event [Member] \| AWR
Bank debt
Maximum borrowing capacity			$ 200,000,000.0	$ 200,000,000.0	$ 260,000,000.0

Long-Term Debt (Details) - USD ($)	12 Months Ended
Long-Term Debt (Details) - USD ($)	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2014	Dec. 31, 2013
GSWC
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital	0.4445
Ratio of Indebtedness to EBITDA	3.1
GSWC \| Maximum
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital	0.6667
Ratio of Indebtedness to EBITDA	8
Private Placement Notes [Member] \| GSWC
Debt Instrument [Line Items]
Interest coverage ratio	4
Private Placement Notes [Member] \| GSWC \| Minimum
Debt Instrument [Line Items]
Interest coverage ratio	2
9.56% notes due 2031
Debt Instrument [Line Items]
Interest rate (as a percent)	9.56%		9.56%
9.56% notes due 2031 \| GSWC
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 28,000,000
Interest rate (as a percent)	9.56%		9.56%
Debt Instrument Redemption Premium above Treasury Yield	0.055%
9.56% notes due 2031 \| GSWC \| Maximum
Debt Instrument [Line Items]
Redemption premium after 2021 (as a percent)	3.00%
9.56% notes due 2031 \| American States Utility Services [Member]
Debt Instrument [Line Items]
Interest rate (as a percent)	9.56%
5.87% notes due 2028
Debt Instrument [Line Items]
Interest rate (as a percent)	5.87%		5.87%
5.87% notes due 2028 \| GSWC
Debt Instrument [Line Items]
Interest rate (as a percent)	5.87%		5.87%
5.87% notes due 2028 \| American States Utility Services [Member]
Debt Instrument [Line Items]
Interest rate (as a percent)	5.87%
6.70% notes due 2019
Debt Instrument [Line Items]
Interest rate (as a percent)	6.70%		6.70%
6.70% notes due 2019 \| GSWC
Debt Instrument [Line Items]
Debt Instrument, Annual Principal Payment		$ 40,000,000
Interest rate (as a percent)	6.70%	6.70%	6.70%
Senior Notes issued to Co-Bank \| GSWC
Debt Instrument [Line Items]
Additional spread on premium (as a percent)	0.50%
American Recovery and Reinvestment Act Obligation due 2033 \| GSWC
Debt Instrument [Line Items]
Interest rate (as a percent)					2.50%
3.45% notes due 2029
Debt Instrument [Line Items]
Interest rate (as a percent)	3.45%		3.45%
3.45% notes due 2029 \| GSWC
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 15,000,000.0			$ 15,000,000.0
Interest rate (as a percent)	3.45%		3.45%	3.45%

Long-Term Debt 2 (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Annual maturities of all long-term debt, including capitalized leases
Total	$ 284,699	$ 324,978
GSWC
Annual maturities of all long-term debt, including capitalized leases
2019	344
2020	365
2021	392
2022	406
2023	425
Thereafter	282,767
Total	$ 284,699	$ 324,978

Long-Term Debt 3 (Details)	3 Months Ended	12 Months Ended
Long-Term Debt 3 (Details)	Dec. 31, 2009 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2013	Dec. 31, 2018	Dec. 31, 2014 USD ($)	Oct. 31, 2009 USD ($)
Debt Instrument [Line Items]
Maximum amount of loan that can be borrowed		$ 225,000,000.0
Notes Payable 3.45 Percent Due 2029 [Member]
Debt Instrument [Line Items]
Interest rate (as a percent)		3.45%		3.45%
GSWC
Debt Instrument [Line Items]
Ratio of Indebtedness to EBITDA		3.1
GSWC \| Maximum
Debt Instrument [Line Items]
Ratio of Indebtedness to EBITDA		8
GSWC \| Private Placement Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Covenant Interest Coverage Ratio		4
GSWC \| Private Placement Notes [Member] \| Minimum
Debt Instrument [Line Items]
Debt Instrument Covenant Interest Coverage Ratio		2
GSWC \| Notes Payable 3.45 Percent Due 2029 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 15,000,000.0			$ 15,000,000.0
Interest rate (as a percent)		3.45%		3.45%	3.45%
GSWC \| American Recovery and Reinvestment Act Obligation due 2033
Debt Instrument [Line Items]
Maximum amount of loan that can be borrowed						$ 9,000,000.0
Interest rate (as a percent)			2.50%
Maturity term			20 years
Loan proceeds received for reimbursement of costs of conversion	$ 8,600,000

Taxes on Income (Details) - USD ($)	3 Months Ended	12 Months Ended
Taxes on Income (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Taxes on income
Unrecognized Tax Benefits		$ 0	$ 0	$ 0
Deferred tax assets:
Regulatory-liability-related		33,080,000	33,419,000
Contributions and advances		5,777,000	5,281,000
Deferred Tax Assets, Other		5,792,000	2,988,000
Deferred tax assets		44,649,000	41,688,000
Deferred tax liabilities:
Fixed assets		(144,444,000)	(131,413,000)
Regulatory-asset-related: depreciation and other		(20,641,000)	(18,146,000)
Balancing and memorandum accounts (non-flow-through)		(4,868,000)	(6,325,000)
Deferred tax liabilities		(169,953,000)	(155,884,000)
Accumulated deferred income taxes - net		(125,304,000)	(114,196,000)
Current
Federal		12,507,000	17,252,000	20,978,000
State		5,540,000	6,538,000	5,844,000
Total current tax expense		18,047,000	23,790,000	26,822,000
Deferred
Federal		6,407,000	(4,334,000)	11,543,000
State		216,000	(1,439,000)	609,000
Total deferred tax (benefit) expense		6,623,000	(5,773,000)	12,152,000
Reconciliations of the effective tax rates to the federal statutory rate
Federal taxes on pretax income at statutory rate (21% in 2018; 35% in 2017 and 2016)		22,872,000	17,196,000	37,919,000
Increase (decrease) in taxes resulting from:		4,758,000	3,693,000	4,382,000
Change in tax rate		0	(14,000)	(82,000)
Excess deferred tax amortization		(1,579,000)	(2,101,000)	0
Flow-through on fixed assets		1,244,000	429,000	845,000
Flow-through on removal costs		(1,582,000)	(1,445,000)	(1,980,000)
Domestic production activities deduction		0	(26,000)	(1,421,000)
Investment tax credit		(71,000)	(69,000)	(93,000)
Other- net		(972,000)	354,000	(596,000)
Total income tax expense operations		24,670,000	18,017,000	38,974,000
Income before income tax expense		$ 109,012,000	$ 81,888,000	$ 108,341,000
Effective income tax rate (as a percent)		22.60%	22.00%	36.00%
Proceeds from Income Tax Refunds	$ 2,200,000				$ 2,100,000
GSWC
Deferred tax assets:
Regulatory-liability-related		$ 33,080,000	$ 33,419,000
Contributions and advances		6,158,000	5,666,000
Deferred Tax Assets, Other		6,618,000	3,310,000
Deferred tax assets		45,856,000	42,395,000
Deferred tax liabilities:
Fixed assets		(147,759,000)	(135,617,000)
Regulatory-asset-related: depreciation and other		(20,641,000)	(18,146,000)
Balancing and memorandum accounts (non-flow-through)		(5,262,000)	(6,873,000)
Deferred tax liabilities		(173,662,000)	(160,636,000)
Accumulated deferred income taxes - net		(127,806,000)	(118,241,000)
Current
Federal		9,616,000	14,488,000	$ 15,044,000
State		5,480,000	5,932,000	5,045,000
Total current tax expense		15,096,000	20,420,000	20,089,000
Deferred
Federal		4,924,000	(5,531,000)	11,770,000
State		157,000	(1,286,000)	2,200,000
Total deferred tax (benefit) expense		5,081,000	(6,817,000)	13,970,000
Reconciliations of the effective tax rates to the federal statutory rate
Federal taxes on pretax income at statutory rate (21% in 2018; 35% in 2017 and 2016)		18,236,000	12,939,000	30,736,000
Increase (decrease) in taxes resulting from:		4,656,000	3,335,000	4,924,000
Change in tax rate		0	0
Excess deferred tax amortization		(1,579,000)	(2,101,000)	0
Flow-through on fixed assets		1,244,000	429,000	845,000
Flow-through on removal costs		(1,582,000)	(1,445,000)	(1,980,000)
Domestic production activities deduction		0	(25,000)	(1,148,000)
Investment tax credit		(71,000)	(69,000)	(93,000)
Other- net		(727,000)	540,000	(288,000)
Total income tax expense operations		20,177,000	13,603,000	34,059,000
Income before income tax expense		86,840,000	61,615,000	87,816,000
Pretax income from operations		$ 86,840,000	$ 61,615,000	$ 87,816,000
Effective income tax rate (as a percent)		23.20%	22.10%	38.80%

Employee Benefit Plans Employee Benefit Plans 1 (Details) - Pension Benefits $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) item participant	Dec. 31, 2018 USD ($)
Employee benefit plans
Defined Benefit Plan Amounts Recognized in Regulatory Asset, Liability New Prior Service Cost (Credit) \| $	$ 0	$ 3,626
Minimum age for eligibility under the Pension Plan \| item	21
Minimum period of service for eligibility under the Pension Plan	5 years
Normal retirement benefit (as a percent)	2.00%
Defined Benefit Plan Number of Highest Consecutive Years Average Earnings Used in Computing Retirement Benefit	5 years
Maximum number of years of credited service considered in determining retirement benefit	40 years
Number of participants in the Pension Plan \| participant	939
Eligibility for employer matching contributions, period of service	3 years
Maximum [Member]
Employee benefit plans
Percentage of participant's eligible pay contributed to the plan by the employer	5.25%
Minimum
Employee benefit plans
Percentage of participant's eligible pay contributed to the plan by the employer	3.00%

Employee Benefit Plans Employee Benefit Plans 2 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension Benefits
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year	$ 196,082	$ 207,690
Service cost	4,441	5,342	$ 4,999
Interest cost	8,527	7,646	7,904
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment	0	3,626
Actuarial (gain) loss	29,784	(21,717)
Benefits/expenses paid	(6,982)	(6,505)
Projected benefit obligation at end of year	231,852	196,082	207,690
Changes in Plan Assets:
Fair value of plan assets at beginning of year	162,529	173,648
Actual return on plan assets	33,018	(10,626)
Employer contributions	3,913	6,012
Benefits/expenses paid	(6,983)	(6,505)
Fair value of plan assets at end of year	192,477	162,529	173,648
Funded Status:
Net amount recognized as accrued pension cost	(39,375)	(33,553)
Postemployment Retirement Benefits [Member]
Change in Projected Benefit Obligation:
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment	0	0
Post-Retirement Medical Benefits
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year	7,886	8,491
Service cost	186	218	227
Interest cost	285	292	324
Actuarial (gain) loss	(538)	(701)
Benefits/expenses paid	(424)	(414)
Projected benefit obligation at end of year	7,395	7,886	8,491
Changes in Plan Assets:
Fair value of plan assets at beginning of year	10,010	11,053
Actual return on plan assets	1,685	(629)
Employer contributions	170	0
Benefits/expenses paid	(594)	(414)
Fair value of plan assets at end of year	11,271	10,010	$ 11,053
Funded Status:
Net amount recognized as accrued pension cost	$ 3,876	$ 2,124

Employee Benefit Plans Employee Benefit Plans 3 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Amounts recognized on the balance sheets:
Non-current liabilities				$ 68,469	$ 57,636
Pension Benefits
Amounts recognized on the balance sheets:
Non-current assets				0	0
Current liabilities				0	0
Non-current liabilities				39,375	33,553
Net amount recognized				(39,375)	(33,553)
Amounts recognized in regulatory assets consist of:
Prior service cost (credit)				3,191	3,626
Net (gain) loss				(37,309)	(31,587)
Regulatory assets (liabilities)	$ 40,500	$ 35,213	$ 32,761	40,500	35,213
Unfunded accrued pension cost				(1,125)	(1,660)
Net liability (asset) recognized				39,375	33,553
Changes in plan assets and benefit obligations recognized in regulatory assets:
Regulatory asset at beginning of year	35,213	32,761
Net loss (gain)	(7,140)	(81)
Amortization of prior service (cost) credit	(434)	0
Amortization of net gain (loss)	(1,419)	(1,255)
Total change in regulatory asset	5,287	2,452
Regulatory asset (liability) at end of year	40,500	35,213	32,761
Defined Benefit Plan Amounts Recognized in Regulatory Asset, Liability New Prior Service Cost (Credit)				0	3,626
Net periodic pension costs	4,447	3,070	4,121
Change in regulatory asset	5,287	2,452
Total recognized in net periodic pension cost and regulatory asset (liability)	9,734	5,522
Estimated amounts that will be amortized from regulatory asset over the next fiscal year:
Prior service (cost) credit				(434)	(434)
Net gain (loss)	(1,768)	(1,435)
Additional year-end information for plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation				231,852	196,082
Accumulated benefit obligation				215,996	183,036
Fair value of plan assets				$ 192,477	$ 162,529
Weighted-average assumptions used to determine benefit obligations at December 31:
Discount rate				3.43%	4.43%
Post-Retirement Medical Benefits
Amounts recognized on the balance sheets:
Non-current assets				$ 3,876	$ 2,124
Current liabilities				0	0
Non-current liabilities				0	0
Net amount recognized				3,876	2,124
Amounts recognized in regulatory assets consist of:
Prior service cost (credit)				0	0
Net (gain) loss				5,432	4,459
Regulatory assets (liabilities)	(5,432)	(4,459)	(5,650)	(5,432)	(4,459)
Unfunded accrued pension cost				1,556	2,335
Net liability (asset) recognized				(3,876)	(2,124)
Changes in plan assets and benefit obligations recognized in regulatory assets:
Regulatory asset at beginning of year	(4,459)	(5,650)
Net loss (gain)	1,775	(421)
Amortization of prior service (cost) credit	0	0
Amortization of net gain (loss)	802	770
Total change in regulatory asset	(973)	1,191
Regulatory asset (liability) at end of year	(5,432)	(4,459)	(5,650)
Net periodic pension costs	(779)	(752)	$ (690)
Change in regulatory asset	(973)	1,191
Total recognized in net periodic pension cost and regulatory asset (liability)	(1,752)	439
Estimated amounts that will be amortized from regulatory asset over the next fiscal year:
Prior service (cost) credit				0	0
Net gain (loss)	$ 796	$ 598
Additional year-end information for plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation				7,395	7,886
Fair value of plan assets				$ 11,271	$ 10,010
Weighted-average assumptions used to determine benefit obligations at December 31:
Discount rate				3.12%	4.20%
Minimum \| Pension Benefits
Weighted-average assumptions used to determine benefit obligations at December 31:
Rate of compensation increase				3.00%	3.00%
Maximum \| Pension Benefits
Weighted-average assumptions used to determine benefit obligations at December 31:
Rate of compensation increase				8.00%	8.00%

Employee Benefit Plans Employee Benefit Plans 4 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Weighted-average assumptions used to determine net periodic cost:
Expected long-term return on plan assets		4.20%
Expected long-term return on plan assets		4.20%
Pension Benefits
Components of Net Periodic Benefits Cost:
Service cost	$ 4,441	$ 5,342	$ 4,999
Interest cost	8,527	7,646	7,904
Expected return on plan assets	(10,374)	(11,172)	(9,705)
Amortization of prior service cost (credit)	434	0	0
Amortization of actuarial (gain) loss	1,419	1,254	923
Net periodic pension cost under accounting standards	4,447	3,070	4,121
Regulatory adjustment	593	0	(465)
Total expense recognized, before surcharges and allocation to overhead pool	$ 3,854	$ 3,070	$ 4,586
Weighted-average assumptions used to determine net periodic cost:
Discount rate	4.43%	3.76%	4.44%
Expected long-term return on plan assets	6.50%	6.50%	6.50%
Expected long-term return on plan assets	6.50%	6.50%	6.50%
Post-Retirement Medical Benefits
Components of Net Periodic Benefits Cost:
Service cost	$ 186	$ 218	$ 227
Interest cost	285	292	324
Expected return on plan assets	(449)	(493)	(466)
Amortization of prior service cost (credit)	0	0	0
Amortization of actuarial (gain) loss	(801)	(769)	(775)
Net periodic pension cost under accounting standards	(779)	(752)	(690)
Regulatory adjustment	0	0	0
Total expense recognized, before surcharges and allocation to overhead pool	$ (779)	$ (752)	$ (690)
Weighted-average assumptions used to determine net periodic cost:
Discount rate	4.20%	3.52%	3.97%
Union plan
Weighted-average assumptions used to determine net periodic cost:
Expected long-term return on plan assets	6.00%	6.00%	6.00%
Expected long-term return on plan assets	6.00%	6.00%	6.00%
Non-union plan
Weighted-average assumptions used to determine net periodic cost:
Expected long-term return on plan assets		4.20%	4.20%
Expected long-term return on plan assets		4.20%	4.20%
Minimum \| Pension Benefits
Weighted-average assumptions used to determine net periodic cost:
Rate of compensation increase	3.00%	3.00%
Maximum \| Pension Benefits
Weighted-average assumptions used to determine net periodic cost:
Rate of compensation increase	8.00%	8.00%

Employee Benefit Plans Employee Benefit Plans 5 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Employee benefit plans
Regulatory asset authorized under settlement	$ 2,700
Pension Benefits
Employee benefit plans
Regulatory adjustment	593	$ 0	$ (465)
GSWC \| Pension Benefits
Employee benefit plans
Regulatory adjustment		$ 1,700	$ 583
Pension Costs and Other Postretirement Benefit Costs \| GSWC
Employee benefit plans
Regulatory asset authorized under settlement	43,400
Two-way pension balancing account \| Pension Costs and Other Postretirement Benefit Costs \| GSWC
Employee benefit plans
Regulatory adjustment	$ (2,700)

Employee Benefit Plans Employee Benefit Plans 6 (Details)	Dec. 31, 2019	Dec. 31, 2018
Pension Benefits
Employee benefit plans
Actual asset allocations	100.00%	100.00%
Target asset allocations	100.00%
Pension Benefits \| Equity securities
Employee benefit plans
Actual asset allocations	56.00%	53.00%
Target asset allocations	60.00%
Pension Benefits \| Debt securities
Employee benefit plans
Actual asset allocations	39.00%	43.00%
Target asset allocations	40.00%
Pension Benefits \| Real Estate Funds
Employee benefit plans
Actual asset allocations	5.00%	4.00%
Pension Benefits \| Cash equivalents
Employee benefit plans
Actual asset allocations	0.00%	0.00%
Post-Retirement Medical Benefits
Employee benefit plans
Actual asset allocations	100.00%	100.00%
Target asset allocations	100.00%
Post-Retirement Medical Benefits \| Equity securities
Employee benefit plans
Actual asset allocations	61.00%	59.00%
Target asset allocations	60.00%
Post-Retirement Medical Benefits \| Debt securities
Employee benefit plans
Actual asset allocations	38.00%	39.00%
Target asset allocations	40.00%
Post-Retirement Medical Benefits \| Real Estate Funds
Employee benefit plans
Actual asset allocations	0.00%	0.00%
Post-Retirement Medical Benefits \| Cash equivalents
Employee benefit plans
Actual asset allocations	1.00%	2.00%

Employee Benefit Plans Employee Benefit Plans 7 (Details) - Pension Benefits - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Employee benefit plans
Fair Value	$ 192,477	$ 162,529	$ 173,648
Unfunded Commitments	0	0
Cash equivalents
Employee benefit plans
Fair Value	600	590
Unfunded Commitments	0	0
Fixed income fund
Employee benefit plans
Fair Value	74,123	70,642
Unfunded Commitments	0	0
U.S. small/mid cap funds
Employee benefit plans
Fair Value	17,865	22,313
Unfunded Commitments	0	0
U.S. large cap funds
Employee benefit plans
Fair Value	47,132	46,133
Unfunded Commitments	0	0
International funds
Employee benefit plans
Fair Value	43,778	15,548
Unfunded Commitments	0	0
Total equity funds
Employee benefit plans
Fair Value	108,775	83,994
Unfunded Commitments	0
Real estate funds
Employee benefit plans
Fair Value	8,979	7,303
Unfunded Commitments	$ 0	$ 0

Employee Benefit Plans Employee Benefit Plans 8 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension Benefits
Employee benefit plans
Defined Benefit Plan Number of Highest Consecutive Years Average Earnings Used in Computing Retirement Benefit	5 years
Fair value of post-retirement plan assets	$ 192,477	$ 162,529	$ 173,648
Pension Benefits \| Cash equivalents
Employee benefit plans
Fair value of post-retirement plan assets	600	590
Pension Benefits \| Fixed income fund
Employee benefit plans
Fair value of post-retirement plan assets	74,123	70,642
Pension Benefits \| U.S. large cap funds
Employee benefit plans
Fair value of post-retirement plan assets	47,132	46,133
Post-Retirement Medical Benefits
Employee benefit plans
Fair value of post-retirement plan assets	11,271	10,010	$ 11,053
Post-Retirement Medical Benefits \| Level 1
Employee benefit plans
Fair value of post-retirement plan assets	11,271	10,010
Post-Retirement Medical Benefits \| Level 2
Employee benefit plans
Fair value of post-retirement plan assets	0	0
Post-Retirement Medical Benefits \| Level 3
Employee benefit plans
Fair value of post-retirement plan assets	0	0
Post-Retirement Medical Benefits \| Cash equivalents \| Level 1
Employee benefit plans
Fair value of post-retirement plan assets	69	263
Post-Retirement Medical Benefits \| Cash equivalents \| Level 2
Employee benefit plans
Fair value of post-retirement plan assets	0	0
Post-Retirement Medical Benefits \| Cash equivalents \| Level 3
Employee benefit plans
Fair value of post-retirement plan assets	0	0
Post-Retirement Medical Benefits \| Fixed income fund \| Level 1
Employee benefit plans
Fair value of post-retirement plan assets	4,279	3,871
Post-Retirement Medical Benefits \| Fixed income fund \| Level 2
Employee benefit plans
Fair value of post-retirement plan assets	0	0
Post-Retirement Medical Benefits \| Fixed income fund \| Level 3
Employee benefit plans
Fair value of post-retirement plan assets	0	0
Post-Retirement Medical Benefits \| U.S. large cap funds \| Level 1
Employee benefit plans
Fair value of post-retirement plan assets	6,923	5,876
Post-Retirement Medical Benefits \| U.S. large cap funds \| Level 2
Employee benefit plans
Fair value of post-retirement plan assets	0
Post-Retirement Medical Benefits \| U.S. large cap funds \| Level 3
Employee benefit plans
Fair value of post-retirement plan assets	0
Fair Value \| Post-Retirement Medical Benefits
Employee benefit plans
Fair value of post-retirement plan assets	11,271	10,010
Fair Value \| Post-Retirement Medical Benefits \| Cash equivalents
Employee benefit plans
Fair value of post-retirement plan assets	69	263
Fair Value \| Post-Retirement Medical Benefits \| Fixed income fund
Employee benefit plans
Fair value of post-retirement plan assets	4,279	3,871
Fair Value \| Post-Retirement Medical Benefits \| U.S. large cap funds
Employee benefit plans
Fair value of post-retirement plan assets	$ 6,923	$ 5,876
Minimum \| Post-Retirement Medical Benefits \| Fixed income fund
Employee benefit plans
Investments Maturity Period	1 year
Maximum \| Post-Retirement Medical Benefits \| Fixed income fund
Employee benefit plans
Investments Maturity Period	20 years

Employee Benefit Plans Employee Benefit Plans 9 (Details) - Pension Benefits - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Employee benefit plans
Employer contributions	$ 3,913	$ 6,012
Expected future employer's contribution	$ 3,300

Employee Benefit Plans Employee Benefit Plans 10 (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Pension Benefits
Employee benefit plans
2020	$ 7,910
2021	8,574
2022	9,263
2023	9,839
2024	10,441
Thereafter	60,621
Total	106,648
Post-Retirement Medical Benefits
Employee benefit plans
2020	526
2021	599
2022	642
2023	677
2024	652
Thereafter	2,607
Total	$ 5,703

Employee Benefit Plans Employee Benefit Plans 11 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Employee benefit plans
Expected long-term return on plan assets		4.20%
Healthcare Cost Trend Rate
Initial health care cost for employees under age of 65 (as a percent)	5.90%
Ultimate health care cost for employees under age of 65 (as a percent)	4.40%
Initial Health care cost for employees of age 65 and over (as a percent)	5.00%
Ultimate health care cost for employees of age 65 and over (as a percent)	4.20%
Effects of one-percentage-point change in assumed health care cost trend rates
Effect on total of service and interest cost components -1 Percentage Point Increase	$ 34
Effect on total of service and interest cost components -1 Percentage Point Decrease	(29)
Effect on post-retirement benefit obligation -1 Percentage Point Increase	749
Effect on post-retirement benefit obligation -1 Percentage Point Decrease	$ (645)
Union plan
Employee benefit plans
Expected long-term return on plan assets	6.00%	6.00%	6.00%
Non-union plan
Employee benefit plans
Expected long-term return on plan assets		4.20%	4.20%

Employee Benefit Plans Employee Benefit Plans 12 (Details) - SERP - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Balance in Rabbi Trust
Balance in Rabbi Trust	$ 21,600
Fair value of assets held in Rabbi Trust	0	$ 0
Rabbi Trust \| Level 1
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	21,553	16,412
Rabbi Trust \| Level 2
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	0	0
Rabbi Trust \| Level 3
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	0	0
Rabbi Trust \| Cash equivalents \| Level 1
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	72	166
Rabbi Trust \| Cash equivalents \| Level 2
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	0	0
Rabbi Trust \| Cash equivalents \| Level 3
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	0	0
Rabbi Trust \| Fixed income fund \| Level 1
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	8,427	6,251
Rabbi Trust \| Fixed income fund \| Level 2
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	0	0
Rabbi Trust \| Fixed income fund \| Level 3
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	0	0
Rabbi Trust \| Equity securities \| Level 1
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	13,054	9,995
Rabbi Trust \| Equity securities \| Level 2
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	0	0
Rabbi Trust \| Equity securities \| Level 3
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	0	0
Fair Value \| Rabbi Trust
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	21,553	16,412
Fair Value \| Rabbi Trust \| Cash equivalents
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	72	166
Fair Value \| Rabbi Trust \| Fixed income fund
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	8,427	6,251
Fair Value \| Rabbi Trust \| Equity securities
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	$ 13,054	$ 9,995

Employee Benefit Plans Employee Benefit Plans 13 (Details) - SERP - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Change in Benefit Obligation:
Projected benefit obligation at beginning of year	$ 24,517	$ 24,062
Service cost	1,193	1,096	$ 930
Interest cost	1,069	888	893
Actuarial (gain) loss	3,419	(1,104)
Benefits/expenses paid	(495)	(425)
Projected benefit obligation at end of year	29,703	24,517	$ 24,062
Changes in Plan Assets:
Fair value of plan assets at beginning of year	0
Fair value of plan assets at end of year	0	0
Funded Status:
Net amount recognized as accrued pension cost	$ (29,703)	$ (24,517)

Employee Benefit Plans Employee Benefit Plans 14 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amounts recognized on the balance sheets:
Non-current liabilities				$ 68,469	$ 57,636
SERP
Amounts recognized on the balance sheets:
Current liabilities				(609)	(433)
Non-current liabilities				29,094	24,084
Net amount recognized				(29,703)	(24,517)
Amounts recognized in regulatory assets consist of:
Prior service cost (credit)				0	0
Net loss				8,352	5,403
Regulatory assets (liabilities)	$ 8,352	$ 5,403	$ 7,556	8,352	5,403	$ 7,556
Unfunded accrued pension cost				21,351	19,114
Net liability (asset) recognized				29,703	24,517
Changes in plan assets and benefit obligations recognized in regulatory assets:
Regulatory asset at beginning of year	5,403	7,556
Net (gain) loss	3,419	(1,104)
Amortization of prior service (cost) credit	0	0
Amortization of net gain (loss)	(470)	(1,049)
Change in regulatory asset	2,949	(2,153)
Regulatory asset (liability) at end of year	8,352	5,403	7,556
Net periodic pension costs	2,733	3,033	$ 2,612
Change in regulatory asset	2,949	(2,153)
Total recognized in net periodic pension cost and regulatory asset (liability)	5,682	880
Estimated amounts that will be amortized from regulatory asset over the next fiscal year:
Initial net asset (obligation)	0	0
Prior service cost	0	0
Net gain (loss)	$ (844)	$ (471)
Additional year-end information for plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation				29,703	24,517	$ 24,062
Accumulated benefit obligation				26,251	21,229
Fair value of plan assets				$ 0	$ 0
Weighted-average assumptions used to determine benefit obligations at December 31:
Discount rate				3.36%	4.40%
Rate of compensation increase				4.00%	4.00%

Employee Benefit Plans Employee Benefit Plans 15 (Details) - SERP - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Components of Net Periodic Benefits Cost:
Service cost	$ 1,193	$ 1,096	$ 930
Interest cost	1,069	888	893
Amortization of prior service cost (credit)	0	0	12
Amortization of actuarial (gain) loss	471	1,049	777
Net periodic pension cost under accounting standards	$ 2,733	$ 3,033	$ 2,612
Weighted-average assumptions used to determine net periodic cost:
Discount rate	4.40%	3.72%	4.34%
Rate of compensation increase	4.00%	4.00%	4.00%

Employee Benefit Plans Employee Benefit Plans 16 (Details) - SERP $ in Thousands	Dec. 31, 2019 USD ($)
Employee benefit plans
2020	$ 609
2021	830
2022	932
2023	1,624
2024	1,704
Thereafter	10,117
Total	$ 15,816

Employee Benefit Plans Employee Benefit Plans 17 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Retirement Benefits [Abstract]
Employer's contribution	$ 2.5	$ 2.4	$ 2.3
Employer discretionary contribution amount	$ 1.6	$ 1.3	$ 1.1

Stock-Based Compensation Plans (Details) $ in Thousands	12 Months Ended
Stock-Based Compensation Plans (Details) $ in Thousands	Dec. 31, 2019 USD ($) stock_plan shares	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Stock compensation plans
Number of stock incentive plans \| stock_plan	3
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 245
Stock-based compensation recognized in the income statement, before taxes	$ 2,517	$ 3,851	$ 2,885
Immediate vesting for employees of certain age and above	55 years
GSWC
Stock compensation plans
Stock-based compensation recognized in the income statement, before taxes	$ 2,253	3,397	2,420
Capitalized equity-based compensation cost	265	199	195
Nonqualified stock options
Stock compensation plans
Tax benefits from exercise of stock-based awards	1,800	1,600	1,000
Nonqualified stock options \| GSWC
Stock compensation plans
Tax benefits from exercise of stock-based awards	1,800	1,600	1,000
Restricted Stock Units \| Employees and directors
Stock compensation plans
Stock-based compensation recognized in the income statement, before taxes	2,517	3,851	2,885
Restricted Stock Units \| Employees and directors \| GSWC
Stock compensation plans
Stock-based compensation recognized in the income statement, before taxes	$ 2,253	$ 3,397	$ 2,420
Performance awards
Stock compensation plans
Vesting period	3 years
2000 and 2008 Employee Plans \| Nonqualified stock options
Stock compensation plans
Vesting period	3 years
Percentage of rights vesting in the third year from the date of grant	34.00%
2000 and 2008 Employee Plans \| Restricted Stock Units
Stock compensation plans
Common stock entitled to be received under each award \| shares	1
Percentage of rights vesting in the first two years from the date of grant	33.00%
Percentage of rights vesting in the third year from the date of grant	34.00%
2000 and 2008 Employee Plans \| Performance awards
Stock compensation plans
Vesting period	3 years
Percentage of rights vesting in the first two years from the date of grant	33.00%
Percentage of rights vesting in the third year from the date of grant	34.00%
2003 and 2013 Directors plans [Member]
Stock compensation plans
Vesting period	90 days
Maximum
Stock compensation plans
Chang in control, term	P24M
Weighted Average [Member]
Stock compensation plans
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 25 days
Weighted Average [Member] \| Restricted Stock [Member]
Stock compensation plans
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 6 months 18 days

Stock-Based Compensation Plans 2 (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of Options
Common Shares issued as a result of the exercise of stock options	30,998	32,142	52,936
Additional disclosure
Cash proceeds from the exercise of stock options	$ 519	$ 546	$ 909
Unrecognized compensation cost	$ 245
Maximum
Additional disclosure
Percentage of target amount of performance shares	200.00%
Minimum
Additional disclosure
Percentage of target amount of performance shares	0.00%
Weighted Average [Member]
Additional disclosure
Expected recognition period for unrecognized compensation cost	1 year 25 days
Restricted Stock Units
Additional disclosure
Unrecognized compensation cost related to performance awards	$ 390
Number of Restricted/Performance Share Units
Restricted share units at the beginning of the period (in shares)	102,235
Granted (in shares)	23,550
Vested (in shares)	(48,017)
Forfeited (in shares)	(2,697)
Restricted share units at the end of the period (in shares)	75,071	102,235
Weighted Average Grant-Date Value
Restricted share units at the beginning of the period (in dollars per share)	$ 34.73
Granted (in dollars per share)	67.57
Vested (in dollars per share)	30.99
Forfeited (in dollars per share)	48.64
Restricted share units at the end of the period (in dollars per share)	$ 46.92	$ 34.73
Stock options
Additional disclosure
Tax benefit for the tax deduction from awards exercised	$ (1,800)	$ (1,600)	(1,000)
Performance awards
Additional disclosure
Vesting period	3 years
Period to meet the performance goals	3 years
Number of Restricted/Performance Share Units
Restricted share units at the beginning of the period (in shares)	95,661
Granted (in shares)	22,035
Performance criteria adjustment (in shares)	1,772
Vested (in shares)	(33,080)
Forfeited (in shares)	(1,739)
Restricted share units at the end of the period (in shares)	84,649	95,661
Weighted Average Grant-Date Value
Restricted share units at the beginning of the period (in dollars per share)	$ 45.36
Granted (in dollars per share)	65.86
Performance criteria adjustment (in dollars per share)	38.14
Vested (in dollars per share)	41.15
Forfeited (in dollars per share)	61.74
Restricted share units at the end of the period (in dollars per share)	$ 51.85	$ 45.36
GSWC \| Stock options
Additional disclosure
Tax benefit for the tax deduction from awards exercised	$ (1,800)	$ (1,600)	$ (1,000)

Commitments (Details) $ in Thousands	12 Months Ended
Commitments (Details) $ in Thousands	Dec. 31, 2019 USD ($)
GSWC \| Water Supply
Estimated future minimum payments
2019	$ 417
2020	417
2021	417
2022	417
2023	417
Thereafter	2,031
Total	4,116
GSWC \| Water Supply \| City of Claremont [Member]
Purchase commitments
Remaining amount of commitment	2,100
GSWC \| Water Supply \| Various third parties
Estimated future minimum payments
Total	2,000
Electric: \| Electric Power Purchase Commitments [Member]
Estimated future minimum payments
Total	$ 26,300
Minimum \| Electric: \| Electric Power Purchase Commitments [Member]
Purchase commitments
Derivative, Term of Contract	3 years
Maximum [Member] \| Electric: \| Electric Power Purchase Commitments [Member]
Purchase commitments
Derivative, Term of Contract	5 years
Purchase power contract \| Minimum \| GSWC
Purchase commitments
Derivative, Term of Contract	3 years
Purchase power contract \| Maximum [Member] \| GSWC
Purchase commitments
Derivative, Term of Contract	5 years

Commitments Commitments 2 (Details) - Electric Power Purchase Commitments [Member] - Electric:	12 Months Ended
	Dec. 31, 2019
Minimum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Derivative, Term of Contract	3 years
Maximum [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Derivative, Term of Contract	5 years

Contingencies (Details) $ in Millions	6 Months Ended	12 Months Ended
Contingencies (Details) $ in Millions	Jun. 30, 2017 USD ($) customer	Dec. 31, 2019 USD ($)
Contingencies
Loss Contingency Number of Customers Served \| customer	2,900
Proceeds from Sale of Other Assets	$ 34.3
Gain (Loss) on Disposition of Assets	$ 8.3
Term estimate for the environmental cleanup		2 years
Environmental Clean-Up and Remediation \| GSWC
Contingencies
Amount spent in clean-up and remediation activities		$ 6.3
Amount paid by the State of California Underground Storage Tank Fund for clean-up and remediation of plant facilities		1.5
Accrued liability for the estimated additional cost to complete the clean-up at the site		$ 1.3

Leases Lease- additional information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019
Leases [Abstract]
Operating lease liabilities	$ 1,849	$ 0
Operating lease liabilities	11,739	0
Operating lease right-of-use assets	13,168	0		$ 7,600
Debt Instrument [Line Items]
Notes Payable to Bank	205,000
Operating Lease, Expense	2,800	$ 2,500	$ 2,400
9.56% notes due 2031
Debt Instrument [Line Items]
Notes Payable to Bank	$ 28,000
Interest rate (as a percent)	9.56%	9.56%
Golden State Water Company [Member]
Leases [Abstract]
Operating lease liabilities	$ 1,612	$ 0
Operating lease liabilities	11,588	0
Operating lease right-of-use assets	$ 12,745	$ 0
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital	0.4445
Golden State Water Company [Member] \| 9.56% notes due 2031
Debt Instrument [Line Items]
Interest rate (as a percent)	9.56%	9.56%
Golden State Water Company [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital	0.6667

Leases Supplemental lease information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Lease, Cost	$ 3,166
Operating lease right-of-use assets	13,168	$ 7,600	$ 0
Short-term Lease, Cost	$ 159
Operating Lease, Weighted Average Remaining Lease Term	7 years 2 months 26 days
Operating Lease, Weighted Average Discount Rate, Percent	3.50%
Operating Lease, Payments, Use	$ 18,034

Leases Lessee Operating Lease Liability Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
2020	$ 2,709
2021	2,533
2022	2,217
2023	1,779
2024	1,499
Thereafter	5,246
Total lease payments	15,983
Less: imputed interest	2,395
Total lease obligations	13,588	$ 8,000
Less: current obligations	1,849		$ 0
Long-term lease obligations	$ 11,739		0
2020			2,530
2021			1,497
2022			1,007
2023			546
2024			293
Thereafter			311
Total			$ 6,184

Business Segments (Details)
$ in Thousands

3 Months Ended

12 Months Ended

Dec. 31, 2019

USD ($)

Sep. 30, 2019

USD ($)

Jun. 30, 2019

USD ($)

Mar. 31, 2019

USD ($)

Dec. 31, 2018

USD ($)

Sep. 30, 2018

USD ($)

Jun. 30, 2018

USD ($)

Mar. 31, 2018

USD ($)

Dec. 31, 2019

USD ($)

segment

Dec. 31, 2018

USD ($)

Dec. 31, 2017

USD ($)

$ 112,993

$ 134,496

$ 124,647

$ 101,733

$ 111,005

$ 124,182

$ 106,901

$ 94,728

$ 473,869

$ 436,816

$ 440,603

24,724

42,724

39,430

20,195

22,749

33,975

25,568

18,691

127,073

100,983

127,095

(21,337)

(19,855)

(20,792)

1,415,705

1,296,310

1,415,705

1,296,310

1,204,992

^[1]

35,397

40,425

39,031

24,670

18,017

38,974

$ 151,940

126,561

113,126

Parent Company

Number of reportable segments | segment

$ 0

(9)

(96)

(539)

(451)

(248)

^[1]

(709)

(525)

(2,221)

$ 0

Number of reportable segments | segment

81,233

107,245

95,548

75,352

75,226

95,564

84,574

74,244

$ 359,378

329,608

340,301

18,746

$ 36,982

$ 34,037

$ 15,327

14,080

$ 27,540

$ 22,645

$ 16,297

105,092

80,562

105,871

1,394,742

1,281,092

1,394,742

1,281,092

32,441

38,395

37,852

GSWC | Water Service Utility Operations [Member]

20,177

13,603

34,059

319,830

295,258

306,332

93,895

74,342

98,678

(20,304)

(18,403)

(18,909)

1,322,062

1,218,468

1,322,062

1,218,468

1,137,995

^[1]

29,956

36,137

35,706

17,295

12,391

32,212

131,353

110,934

104,546

GSWC | Electric:

39,548

34,350

33,969

11,197

6,220

7,193

(1,228)

(1,328)

(1,380)

72,680

62,624

72,680

62,624

59,945

^[1]

2,485

2,258

2,146

2,882

1,212

1,847

American States Utility Services [Member] | Contracted services:

11,499

5,420

5,941

114,491

107,208

100,302

21,990

20,414

21,320

734

327

(255)

$ 20,963

$ 15,218

20,963

15,218

7,052

^[1]

2,956

2,030

1,179

5,202

4,939

7,136