0001056903-21-000126 | 10-Q | XBRL Viewer

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2021	Oct. 29, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-14431
Entity Registrant Name	American States Water Co
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	95-4676679
Entity Address, Address Line One	630 E. Foothill Blvd
Entity Address, City or Town	San Dimas
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91773-1212
City Area Code	909
Local Phone Number	394-3600
Title of 12(b) Security	Common shares
Trading Symbol	AWR
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		36,936,252
Entity Central Index Key	0001056903
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
GOLDEN STATE WATER COMPANY
Entity Information [Line Items]
Entity File Number	001-12008
Entity Registrant Name	Golden State Water Co
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	95-1243678
Entity Address, Address Line One	630 E. Foothill Blvd
Entity Address, City or Town	San Dimas
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91773-1212
City Area Code	909
Local Phone Number	394-3600
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		170
Entity Central Index Key	0000092116
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment
Regulated utility plant, at cost	$ 2,144,543	$ 2,043,791
Non-utility property, at cost	37,717	36,578
Total	2,182,260	2,080,369
Less - Accumulated depreciation	(587,714)	(568,326)
Net property, plant and equipment	1,594,546	1,512,043
Other Property and Investments
Goodwill	1,116	1,116
Other property and investments	37,287	35,318
Total other property and investments	38,403	36,434
Current Assets
Cash and cash equivalents	7,141	36,737
Accounts receivable - customers, less allowance for doubtful accounts	33,251	29,162
Unbilled receivable	25,517	25,836
Receivable from the U.S. government (Note 2)	29,103	25,182
Other accounts receivable, less allowance for doubtful accounts	4,895	3,960
Income taxes receivable	124	103
Materials and supplies, at weighted average cost	10,240	8,619
Regulatory assets — current	13,026	13,088
Prepayments and other current assets	7,049	5,555
Unrealized gains on purchased power contracts	7,875	0
Contract assets	5,438	8,873
Total current assets	143,659	157,115
Other Assets
Unbilled revenue — receivable from U.S. government	7,700	9,945
Receivable from the U.S. government (Note 2)	52,751	49,488
Contract assets (Note 2)	5,310	1,384
Operating lease right-of-use assets	11,072	11,146
Regulatory Assets	10,662	3,451
Other	10,697	10,597
Total other assets	98,192	86,011
Total Assets	1,874,800	1,791,603
Capitalization
Common Stock, Value, Issued	258,264	256,666
Earnings reinvested in the business	420,671	385,007
Total common shareholders’ equity	678,935	641,673
Long-term debt	412,093	440,348
Total capitalization	1,091,028	1,082,021
Current Liabilities
Notes Payable to Bank	28,000	0
Long-term debt — current	377	358
Accounts payable	67,952	63,788
Income taxes payable	3,569	6,783
Accrued other taxes	12,174	11,902
Accrued employee expenses	15,680	15,122
Accrued interest	6,242	4,832
Unrealized losses on purchased power contracts	0	1,537
Contract liabilities (Note 2)	555	1,800
Regulatory Liability, Current	3,821	0
Operating lease liabilities	2,079	2,013
Other	10,671	10,437
Total current liabilities	151,120	118,572
Other Credits
Notes payable to bank	162,000	134,200
Advances for construction	66,505	63,374
Contributions in aid of construction - net	147,510	140,332
Deferred income taxes	136,531	131,172
Unamortized investment tax credits	1,170	1,224
Accrued pension and other postretirement benefits	93,671	95,639
Operating lease liabilities	9,433	9,636
Other	15,832	15,433
Total other credits	632,652	591,010
Commitments and Contingencies
Total Capitalization and Liabilities	$ 1,874,800	$ 1,791,603
Consolidated Balance Sheets(Parenthetical)
Common Stock, Shares Authorized	60,000,000	60,000,000
Common Stock, Shares, Outstanding	36,936,252	36,889,103
Common Stock, Par or Stated Value Per Share	$ 0	$ 0
Golden State Water Company
Property, Plant and Equipment
Total	$ 1,988,948	$ 1,902,772
Less - Accumulated depreciation	(517,208)	(502,283)
Net property, plant and equipment	1,471,740	1,400,489
Other Property and Investments
Total other property and investments	35,218	33,240
Current Assets
Cash and cash equivalents	2,959	35,578
Accounts receivable - customers, less allowance for doubtful accounts	31,147	26,920
Unbilled receivable	21,126	19,330
Other accounts receivable, less allowance for doubtful accounts	2,607	3,255
Intercompany receivable	0	1,107
Materials and supplies, at weighted average cost	3,921	3,659
Regulatory assets — current	13,026	11,325
Prepayments and other current assets	5,088	4,114
Total current assets	79,874	105,288
Other Assets
Operating lease right-of-use assets	10,965	11,103
Regulatory Assets	10,615	1,048
Other	9,702	9,614
Total other assets	31,282	21,765
Total Assets	1,618,114	1,560,782
Capitalization
Common Stock, Value, Issued	356,403	354,906
Earnings reinvested in the business	245,961	228,392
Total common shareholders’ equity	602,364	583,298
Long-term debt	412,093	440,348
Total capitalization	1,014,457	1,023,646
Current Liabilities
Long-term debt — current	377	358
Accounts payable	53,178	45,613
Income taxes payable	4,045	4,612
Accrued other taxes	10,432	10,382
Accrued employee expenses	12,750	12,351
Accrued interest	5,964	4,545
Operating lease liabilities	2,056	1,956
Other	9,695	9,403
Total current liabilities	98,497	89,220
Other Credits
Intercompany payble to Parent	44,522	0
Advances for construction	66,485	63,354
Contributions in aid of construction - net	145,869	138,691
Deferred income taxes	129,091	124,581
Unamortized investment tax credits	1,170	1,224
Accrued pension and other postretirement benefits	93,494	95,570
Operating lease liabilities	9,393	9,636
Other	15,136	14,860
Total other credits	505,160	447,916
Commitments and Contingencies
Total Capitalization and Liabilities	$ 1,618,114	$ 1,560,782
Consolidated Balance Sheets(Parenthetical)
Common Stock, Shares Authorized	1,000	1,000
Common Stock, Shares, Outstanding	170	170
Common Stock, Par or Stated Value Per Share	$ 0	$ 0

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts Receivable, Allowance for Credit Loss, Current	$ 9,074	$ 5,263
Other accounts receivable, allowance for doubtful accounts	$ 53	$ 53
Common Stock, Shares Authorized	60,000,000	60,000,000
Common Stock, Shares, Outstanding	36,936,252	36,889,103
Common Stock, Par or Stated Value Per Share	$ 0	$ 0
GOLDEN STATE WATER COMPANY
Accounts Receivable, Allowance for Credit Loss, Current	$ 8,493	$ 4,907
Other accounts receivable, allowance for doubtful accounts	$ 53	$ 53
Common Stock, Shares Authorized	1,000	1,000
Common Stock, Shares, Outstanding	170	170
Common Stock, Par or Stated Value Per Share	$ 0	$ 0

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating Revenues
Water	$ 102,768	$ 98,701	$ 269,430	$ 257,199
Electric	8,564	8,288	28,211	26,935
Contracted services	25,423	26,699	84,588	79,909
Total operating revenues	136,755	133,688	382,229	364,043
Operating Expenses
Water purchased	24,093	23,445	60,248	56,291
Power purchased for pumping	3,584	3,369	8,590	7,626
Groundwater production assessment	5,185	5,962	14,845	15,140
Power purchased for resale	2,875	2,117	8,203	7,127
Supply cost balancing accounts	(2,446)	(2,639)	(7,959)	(6,606)
Other operation	9,414	8,128	26,165	24,573
Administrative and general	20,255	20,644	62,938	63,992
Depreciation and amortization	9,826	9,348	29,156	27,190
Maintenance	2,979	4,246	8,908	12,224
Property and other taxes	6,052	5,693	17,265	16,098
ASUS construction	12,154	13,568	42,910	39,166
Total operating expenses	93,971	93,881	271,269	262,821
Operating Income	42,784	39,807	110,960	101,222
Other Income and Expenses
Interest expense	(5,553)	(6,161)	(17,843)	(17,533)
Interest income	333	316	1,136	1,364
Other, net	467	1,613	2,998	2,388
Total other income and expenses	(4,753)	(4,232)	(13,709)	(13,781)
Income before income tax expense	38,031	35,575	97,251	87,441
Income tax expense	9,878	9,045	23,254	21,227
Net Income	$ 28,153	$ 26,530	$ 73,997	$ 66,214
Basic Earnings Per Common Share
Weighted Average Number of Common Shares Outstanding (in shares)	36,933	36,886	36,916	36,877
Basic Earnings Per Common Share (in dollars per share)	$ 0.76	$ 0.72	$ 2.00	$ 1.79
Fully Diluted Earnings Per Share
Weighted Average Number of Diluted Shares (in shares)	37,025	37,002	37,004	36,990
Fully Diluted Earnings Per Common Share (in dollars per share)	$ 0.76	$ 0.72	$ 2.00	$ 1.79
Dividends Declared Per Common Share (in dollars per share)	$ 0.365	$ 0.335	$ 1.035	$ 0.945
GOLDEN STATE WATER COMPANY
Operating Revenues
Water	$ 102,768	$ 98,701	$ 269,430	$ 257,199
Electric	0	0	0	18,647
Total operating revenues	102,768	98,701	269,430	275,846
Operating Expenses
Water purchased	24,093	23,445	60,248	56,291
Power purchased for pumping	3,584	3,369	8,590	7,626
Groundwater production assessment	5,185	5,962	14,845	15,140
Power purchased for resale	0	0	0	5,010
Supply cost balancing accounts	(2,114)	(3,019)	(8,445)	(6,986)
Other operation	7,287	6,185	19,476	19,185
Administrative and general	13,677	13,610	41,973	46,181
Depreciation and amortization	8,272	7,835	24,547	24,073
Maintenance	2,140	3,219	6,236	9,613
Property and other taxes	5,185	4,946	14,665	14,297
Total operating expenses	67,309	65,552	182,135	190,430
Operating Income	35,459	33,149	87,295	85,416
Other Income and Expenses
Interest expense	(5,184)	(5,911)	(16,625)	(16,865)
Interest income	86	105	352	604
Other, net	429	1,483	2,684	2,329
Total other income and expenses	(4,669)	(4,323)	(13,589)	(13,932)
Income before income tax expense	30,790	28,826	73,706	71,484
Income tax expense	7,993	7,683	17,718	18,220
Net Income	$ 22,797	$ 21,143	$ 55,988	$ 53,264

CONSOLIDATED STATEMENTS OF CHANGE IN COMMON SHAREHOLDERS' EQUITY Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Retained Earnings [Member]	GOLDEN STATE WATER COMPANY	GOLDEN STATE WATER COMPANY Common Stock [Member]	GOLDEN STATE WATER COMPANY Retained Earnings [Member]
Beginning balances (in shares) at Dec. 31, 2019		36,847,000			165
Beginning balances at Dec. 31, 2019	$ 601,530	$ 255,566	$ 345,964	$ 551,188	$ 293,754	$ 257,434
Add:
Net income	14,072		14,072	11,202		11,202
Exercise of stock options and other issuance of Common Shares (in shares)		37,000
Exercise of stock options and other issuances of Common Shares	30	$ 30
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	193	193		254	254
Dividend equivalent rights on stock-based awards not paid in cash	52	$ 52		46	$ 46
Deduct:
Dividends on Common Shares	11,242		11,242	11,250		11,250
Dividend equivalent rights on stock-based awards not paid in cash	52		52	46		46
Ending balances (in shares) at Mar. 31, 2020		36,884,000			165
Ending balances at Mar. 31, 2020	604,583	$ 255,841	348,742	551,394	$ 294,054	257,340
Beginning balances (in shares) at Dec. 31, 2019		36,847,000			165
Beginning balances at Dec. 31, 2019	601,530	$ 255,566	345,964	551,188	$ 293,754	257,434
Ending balances (in shares) at Jun. 30, 2020		36,884,000			165
Ending balances at Jun. 30, 2020	619,288	$ 256,223	363,065	561,359	$ 294,386	266,973
Beginning balances (in shares) at Dec. 31, 2019		36,847,000			165
Beginning balances at Dec. 31, 2019	601,530	$ 255,566	345,964	551,188	$ 293,754	257,434
Add:
Net income	$ 66,214			53,264
Exercise of stock options and other issuance of Common Shares (in shares)	42,447
Exercise of stock options and other issuances of Common Shares	$ 30
Ending balances (in shares) at Sep. 30, 2020		36,889,000			165
Ending balances at Sep. 30, 2020	633,820	$ 256,622	377,198	511,605	$ 294,873	216,732
Beginning balances (in shares) at Mar. 31, 2020		36,884,000			165
Beginning balances at Mar. 31, 2020	604,583	$ 255,841	348,742	551,394	$ 294,054	257,340
Add:
Net income	25,612		25,612	20,919		20,919
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	343	343		296	296
Dividend equivalent rights on stock-based awards not paid in cash	39	$ 39		36	$ 36
Deduct:
Dividends on Common Shares	11,250		11,250	11,250		11,250
Dividend equivalent rights on stock-based awards not paid in cash	39		39	36		36
Ending balances (in shares) at Jun. 30, 2020		36,884,000			165
Ending balances at Jun. 30, 2020	619,288	$ 256,223	363,065	561,359	$ 294,386	266,973
Add:
Net income	26,530		26,530	21,143		21,143
Exercise of stock options and other issuance of Common Shares (in shares)		5,000
Exercise of stock options and other issuances of Common Shares	0	$ 0
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	358	358		447	447
Dividend equivalent rights on stock-based awards not paid in cash	41	$ 41		40	$ 40
Deduct:
Dividends on Common Shares	12,356		12,356	71,344		71,344
Dividend equivalent rights on stock-based awards not paid in cash	41		41	40		40
Ending balances (in shares) at Sep. 30, 2020		36,889,000			165
Ending balances at Sep. 30, 2020	633,820	$ 256,622	377,198	511,605	$ 294,873	216,732
Beginning balances (in shares) at Dec. 31, 2020		36,889,000			170
Beginning balances at Dec. 31, 2020	641,673	$ 256,666	385,007	583,298	$ 354,906	228,392
Add:
Net income	19,268		19,268	12,231		12,231
Exercise of stock options and other issuance of Common Shares (in shares)		24,000
Exercise of stock options and other issuances of Common Shares	0	$ 0
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	813	813		782	782
Dividend equivalent rights on stock-based awards not paid in cash	49	$ 49		45	$ 45
Deduct:
Dividends on Common Shares	12,361		12,361	12,400		12,400
Dividend equivalent rights on stock-based awards not paid in cash	49		49	45		45
Ending balances (in shares) at Mar. 31, 2021		36,913,000			170
Ending balances at Mar. 31, 2021	649,393	$ 257,528	391,865	583,911	$ 355,733	228,178
Beginning balances (in shares) at Dec. 31, 2020		36,889,000			170
Beginning balances at Dec. 31, 2020	641,673	$ 256,666	385,007	583,298	$ 354,906	228,392
Add:
Net income	$ 73,997			55,988
Exercise of stock options and other issuance of Common Shares (in shares)	47,149
Ending balances (in shares) at Sep. 30, 2021		36,936,000			170
Ending balances at Sep. 30, 2021	$ 678,935	$ 258,264	420,671	602,364	$ 356,403	245,961
Beginning balances (in shares) at Mar. 31, 2021		36,913,000			170
Beginning balances at Mar. 31, 2021	649,393	$ 257,528	391,865	583,911	$ 355,733	228,178
Add:
Net income	26,576		26,576	20,960		20,960
Exercise of stock options and other issuance of Common Shares (in shares)		19,000
Exercise of stock options and other issuances of Common Shares	0	$ 0
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	531	531		479	479
Dividend equivalent rights on stock-based awards not paid in cash	42	$ 42		39	$ 39
Deduct:
Dividends on Common Shares	12,366		12,366	12,400		12,400
Dividend equivalent rights on stock-based awards not paid in cash	42		42	39		39
Ending balances (in shares) at Jun. 30, 2021		36,932,000			170
Ending balances at Jun. 30, 2021	664,134	$ 258,101	406,033	592,950	$ 356,251	236,699
Add:
Net income	28,153		28,153	22,797		22,797
Exercise of stock options and other issuance of Common Shares (in shares)		4,000
Exercise of stock options and other issuances of Common Shares	0	$ 0
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements	128	128		117	117
Dividend equivalent rights on stock-based awards not paid in cash	35	$ 35		35	$ 35
Deduct:
Dividends on Common Shares	13,480		13,480	13,500		13,500
Dividend equivalent rights on stock-based awards not paid in cash	35		35	35		35
Ending balances (in shares) at Sep. 30, 2021		36,936,000			170
Ending balances at Sep. 30, 2021	$ 678,935	$ 258,264	$ 420,671	$ 602,364	$ 356,403	$ 245,961

CONSOLIDATED STATEMENTS OF CASH FLOW - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash Flows From Operating Activities:
Net income	$ 73,997	$ 66,214
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	29,440	27,441
Provision for doubtful accounts	873	873
Deferred income taxes and investment tax credits	1,205	1,767
Stock-based compensation expense	2,456	2,474
Gain on investments held in a trust	(2,313)	(1,266)
Other — net	273	16
Changes in assets and liabilities:
Accounts receivable — customers	(8,748)	(14,759)
Unbilled receivable	2,564	(6,406)
Other accounts receivable	(935)	(337)
Receivables from the U.S. government	(7,847)	(4,834)
Materials and supplies	(1,621)	(2,270)
Prepayments and other assets	(1,139)	347
Contract assets	172	5,092
Regulatory assets	(8,319)	(367)
Accounts payable	2,924	2,657
Income taxes receivable/payable	(3,235)	8,480
Contract Liability	(1,245)	(2,497)
Accrued pension and other postretirement benefits	1,416	132
Other liabilities	2,005	5,086
Net Cash Provided by (Used in) Operating Activities	81,923	87,843
Cash Flows From Investing Activities:
Capital expenditures	(106,721)	(94,824)
Other investing activities	229	187
Net Cash Provided by (Used in) Investing Activities	(106,492)	(94,637)
Cash Flows From Financing Activities:
Proceeds from stock option exercises	0	30
Receipt of advances for and contributions in aid of construction	10,636	7,576
Refunds on advances for construction	(3,613)	(3,401)
Retirement or repayments of long-term debt	(28,356)	(335)
Proceeds from Issuance of Long-term Debt	0	159,422
Net change in notes payable to banks	55,800	(113,000)
Dividends paid	(38,207)	(34,848)
Other financing activities	(1,287)	(1,857)
Net Cash Provided by (Used in) Financing Activities	(5,027)	13,587
Net change in cash and cash equivalents	(29,596)	6,793
Cash and cash equivalents, beginning of period	36,737	1,334
Cash and cash equivalents, end of period	7,141	8,127
Non-cash transactions:
Accrued payables for investment in utility plant	29,101	20,407
Property installed by developers and conveyed	6,093	2,861
GOLDEN STATE WATER COMPANY
Cash Flows From Operating Activities:
Net income	55,988	53,264
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	24,741	24,293
Provision for doubtful accounts	789	855
Deferred income taxes and investment tax credits	578	1,357
Stock-based compensation expense	2,249	2,375
Gain on investments held in a trust	(2,313)	(1,266)
Other — net	248	296
Changes in assets and liabilities:
Accounts receivable — customers	(8,555)	(14,330)
Unbilled receivable	(1,796)	(3,828)
Other accounts receivable	648	(239)
Materials and supplies	(262)	(2,168)
Prepayments and other assets	(469)	144
Regulatory assets	(7,316)	582
Accounts payable	5,799	3,690
Intercompany receivable/payable	694	(1,730)
Income taxes receivable/payable	(567)	7,282
Accrued pension and other postretirement benefits	1,308	132
Other liabilities	1,563	4,384
Net Cash Provided by (Used in) Operating Activities	73,327	75,093
Cash Flows From Investing Activities:
Capital expenditures	(90,299)	(87,665)
Note receivable from AWR parent	(23,000)	0
Receipt of payment of note receivable from AWR parent	23,000	0
Other investing activities	181	136
Net Cash Provided by (Used in) Investing Activities	(90,118)	(87,529)
Cash Flows From Financing Activities:
Receipt of advances for and contributions in aid of construction	10,604	7,576
Refunds on advances for construction	(3,613)	(3,401)
Retirement or repayments of long-term debt	(28,356)	(335)
Proceeds from Issuance of Long-term Debt	0	159,422
Net change in intercompany borrowings	45,000	(123,000)
Dividends paid	(38,300)	(22,500)
Other financing activities	(1,163)	(1,654)
Net Cash Provided by (Used in) Financing Activities	(15,828)	16,108
Net change in cash and cash equivalents	(32,619)	3,672
Cash and cash equivalents, beginning of period	35,578	401
Cash and cash equivalents, end of period	2,959	4,073
Non-cash transactions:
Accrued payables for investment in utility plant	27,399	18,656
Property installed by developers and conveyed	6,093	2,861
Transfer of electric segment net assets (net of cash) for BVESI common shares	0	71,324
Distribution of BVESI common shares to AWR parent	$ 0	$ 71,344

Summary of Significant Accounting Policies	9 Months Ended
Summary of Significant Accounting Policies	Sep. 30, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	Summary of Significant Accounting Policies Nature of Operations: American States Water Company (“AWR”) is the parent company of Golden State Water Company (“GSWC”), Bear Valley Electric Service, Inc. ("BVESI"), 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")). The subsidiaries of ASUS are collectively referred to as the “Military Utility Privatization Subsidiaries”. On July 1, 2020, GSWC completed the transfer of the electric utility assets and liabilities from its electric division to BVESI, a separate legal entity and wholly owned subsidiary of AWR (Note 11). This reorganization did not result in any substantive changes to AWR's operations and business segments. AWR, through its wholly owned subsidiaries, serves over one million people in nine states. GSWC and BVESI are both California public utilities. GSWC is engaged in the purchase, production, distribution and sale of water throughout California serving approximately 262,500 customer connections. BVESI distributes electricity in several San Bernardino County mountain communities in California serving approximately 24,600 customer connections. The California Public Utilities Commission (“CPUC”) regulates GSWC’s and BVESI's businesses in matters including properties, rates, services, facilities, and transactions between GSWC, BVESI, and their affiliates. ASUS, through its wholly owned 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 initial 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 any of its wholly owned 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. AWR owns all of the outstanding common shares of GSWC, BVESI and ASUS. ASUS owns all of the outstanding common stock 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 ("GAAP"). Intercompany transactions and balances have been eliminated in the AWR consolidated financial statements. The consolidated financial statements included herein have been prepared by Registrant, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The December 31, 2020 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. In the opinion of management, all adjustments consisting of normal, recurring items, and estimates necessary for a fair statement of the results for the interim periods have been made. It is suggested that these consolidated financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Form 10-K for the year ended December 31, 2020 filed with the SEC. Related Party Transactions and Financing Activities: GSWC, BVESI and ASUS provide and/or receive various support services to and from their parent, AWR, and among themselves. GSWC has allocated certain corporate office administrative and general costs to its affiliates, BVESI and ASUS, using allocation factors approved by the CPUC. GSWC allocated corporate office administrative and general costs to the electric segment of approximately $653,000 and $643,000 during the three months ended September 30, 2021 and 2020, respectively and $2.1 million and $2.2 million during the nine months ended September 30, 2021 and 2020, respectively. GSWC allocated corporate office administrative and general costs to ASUS of approximately $1.2 million during each of the three months ended September 30, 2021 and 2020, and $4.0 million and $3.8 million during the nine months ended September 30, 2021 and 2020, respectively. AWR borrows under a $200.0 million credit facility and provides funds to GSWC and ASUS in support of their operations. This credit agreement expires in May 2023. The interest rate charged to GSWC and ASUS is sufficient to cover AWR’s interest expense under the credit facility. As of September 30, 2021, there was $162.0 million outstanding under this facility. BVESI has a separate $35 million revolving credit facility to support its operations and capital expenditures. BVESI's credit facility expires in July 2023. Under the terms of the credit agreement, BVESI has the option to request an increase in the facility of an additional $15 million, which is subject to approval by the financial institution. As of September 30, 2021, there was $28.0 million outstanding under this facility. GSWC’s intercompany borrowing agreement with AWR and BVESI’s revolving credit facility are considered short-term debt arrangements by the CPUC. Both GSWC and BVESI have been authorized by the CPUC to borrow under these arrangements for a term of up to 24 months. Borrowings under these arrangements are, therefore, required to be fully paid off within a 24-month period. GSWC’s next pay-off period for its intercompany borrowings from AWR ends in May 2023, and BVESI’s pay-off period for its credit facility ends in July 2022. Accordingly, as of September 30, 2021, the $28.0 million outstanding under BVESI's credit facility has been classified as a current liability in AWR's Consolidated Balance Sheet. On May 24, 2021, GSWC redeemed early its 9.56% private placement notes in the amount of $28.0 million, which pursuant to the note agreement included a redemption premium of 3.0% on par value, or $840,000. GSWC recovers redemption premiums in its embedded cost of debt as filed in cost of capital proceedings where the cost savings from redeeming higher interest rate debt are passed on to customers. Accordingly, the redemption premium has been deferred as a regulatory asset. GSWC funded the redemption by borrowing from AWR parent. AWR, in turn, funded from its revolving credit facility. In October 2020, AWR issued an interest bearing promissory note to GSWC, which expires in May 2023. Under the terms of the note, AWR may borrow amounts up to $30 million for working capital purposes. AWR agrees to pay any unpaid principal amounts outstanding under this note, plus accrued interest. The borrowing and repayment activity of this note is reflected on GSWC's statements of cash flows under investing activities. There were no amounts outstanding under this note as of September 30, 2021. COVID-19 Impact: GSWC, BVESI and ASUS have continued their operations throughout the COVID-19 pandemic given that their water, wastewater and electric utility services are deemed essential. AWR's responses take into account orders issued by the CPUC, and the guidance provided by federal, state, and local health authorities and other government officials for the COVID-19 pandemic. Some of the actions taken by GSWC and BVESI continue to include suspending service disconnections for nonpayment pursuant to CPUC and state orders, and telecommuting by employees. The suspension of water- service disconnections at GSWC was implemented in response to an executive order from the governor of California. On July 15, 2021, the CPUC issued a final decision in the second phase of the Low-Income Affordability Rulemaking which, among other things, extended the moratorium on water-service disconnections due to non-payment of past-due amounts billed to residential customers until the earlier of February 1, 2022 or pursuant to further CPUC guidance on the matter. On June 24, 2021, the CPUC issued a final decision to extend the moratorium on electric customer service disconnections until September 30, 2021. Under the terms of CPUC-adopted payment plans, actual electric service disconnections for non-payment will occur no earlier than December 1, 2021. The pandemic has caused volatility on financial markets resulting in fluctuations in the fair value of plan assets in GSWC's pension and other retirement plans. Furthermore, as discussed above, GSWC's and BVESI's response to the pandemic required the suspension of service disconnections for nonpayment, which has significantly increased the amount of delinquent customer accounts receivable during the COVID-19 pandemic. Due to the expected future credit losses on utility customer bills, GSWC and BVESI have increased their allowance for doubtful accounts for past due customer receivables. However, the CPUC has authorized GSWC and BVESI to track incremental costs, including bad debt expense, in excess of what is included in their respective revenue requirements incurred as a result of the pandemic in COVID-19-related memorandum accounts, such as a Catastrophic Event Memorandum Account ("CEMA"), which is to be filed with the CPUC for future recovery. GSWC and BVESI have recorded a combined total of approximately $8.5 million in these accounts as regulatory assets, as it is believed such amounts are probable of recovery. CEMA and other emergency-type memorandum accounts are well-established cost recovery mechanisms authorized as a result of a state/federal declared emergency, and are therefore recognized as regulatory assets for future recovery. As a result, the amounts recorded in the COVID-19-related memorandum accounts have not impacted GSWC's or BVESI's earnings. Thus far, the COVID-19 pandemic has not had a material impact on ASUS's operations. The CPUC requires that amounts tracked in GSWC's and BVESI's COVID-19 memorandum accounts for unpaid customer bills be offset by any (i) federal and state relief for water utility bill debt, and (ii) customer payments through payment plan arrangements, prior to receiving recovery from customers. After these offsets are made, GSWC will file with the CPUC for recovery of the remaining balance. BVESI intends to include the remaining balance in its COVID-19 memorandum account for recovery in its next general rate case application expected to be filed in 2022. On July 12, 2021, the governor of California approved SB-129 Budget Act of 2021, which includes almost $1 billion in relief funding for overdue water customer bills, and almost $1 billion in relief funding for overdue electric customer bills. The water utility relief funding is being managed by the State Water Resources Control Board through the California Water and Wastewater Arrearage Payment Program to provide direct assistance to community water systems to credit customer accounts for water debt accrued during the COVID-19 pandemic. The electric utility relief funding is being managed by the California Department of Community Services and Development through the California Arrearage Payment Program. Both GSWC and BVESI intend to seek recovery of overdue amounts from all available funding sources. Funds for both water and electric utility relief are expected to be distributed to utilities during the fourth quarter of 2021 or the first quarter of 2022. Accounting Pronouncements Adopted in 2021: In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("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 adoption of this guidance effective January 1, 2021 did not have a material impact on Registrant's financial statements.

Revenue from Contract with Customer

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer

Revenues

Most of Registrant's revenues are derived from contracts with customers, including tariff-based revenues of its regulated utilities, GSWC and BVESI. ASUS's initial 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 sheets.

Although GSWC and BVESI have a diversified base of residential, commercial, industrial, and other customers, revenues derived from residential and commercial customers generally account for approximately 90% of total water and electric revenues. Almost all of ASUS's revenues are from the U.S. government. For the three and nine months ended September 30, 2021 and 2020, disaggregated revenues from contracts with customers by segment were as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
(dollar in thousands)	2021		2020		2021		2020
Water:
Tariff-based revenues	$	100,256	$	97,036	$	261,231	$	243,553
Surcharges (cost-recovery activities)	1,095		1,217		2,604		2,913
Other	586		569		1,626		1,556
Water revenues from contracts with customers	101,937		98,822		265,461		248,022
WRAM under (over)-collection (alternative revenue program)	831		(121)		3,969		9,177
Total water revenues	102,768		98,701		269,430		257,199

Electric:
Tariff-based revenues	8,791		8,531		28,798		25,948
Surcharges (cost-recovery activities)	32		188		278		624
Electric revenues from contracts with customers	8,823		8,719		29,076		26,572
BRRAM (over) under-collection (alternative revenue program)	(259)		(431)		(865)		363
Total electric revenues	8,564		8,288		28,211		26,935

Contracted services:
Water	15,454		17,143		53,102		45,316
Wastewater	9,969		9,556		31,486		34,593
Contracted services revenues from contracts with customers	25,423		26,699		84,588		79,909

Total AWR revenues	$	136,755	$	133,688	$	382,229	$	364,043

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


(dollar in thousands)	September 30, 2021		December 31, 2020
Unbilled receivables	$	11,041	$	14,924
Receivable from the U.S. government	$	81,854	$	74,670
Contract assets	$	10,748	$	10,257
Contract liabilities	$	555	$	1,800

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 nine months ended September 30, 2021, which were included in contract liabilities at the beginning of the period totaled $838,000. There were no revenues recorded during the three months ended September 30, 2021 that were

included in contract liabilities at the beginning of the period. Contracted services revenues recognized during the three and nine months ended September 30, 2021 from performance obligations satisfied in previous periods were not material.

As of September 30, 2021, Registrant's aggregate remaining performance obligations, which are entirely for the contracted services segment, were $3.3 billion. Registrant expects to recognize revenue on these remaining performance obligations over the remaining term of each of the 50-year contracts, which range from 33 to 47 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 convenience of the U.S. government.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

+ Details

Regulatory Matters

9 Months Ended

Sep. 30, 2021

Regulated Operations [Abstract]

Regulatory Matters

In accordance with accounting principles for rate-regulated enterprises, GSWC and BVESI record 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 September 30, 2021, GSWC and BVESI had approximately $28.2 million of regulatory liabilities, net of regulatory assets, not accruing carrying costs. Of this amount, (i) $77.4 million of regulatory liabilities are excess deferred income taxes arising from the lower federal income tax rate due to the Tax Cuts and Jobs Act ("Tax Act") enacted in December 2017 that are expected to be refunded to customers, (ii) $7.2 million of regulatory liabilities are from flowed-through deferred income taxes, (iii) $63.2 million of net regulatory assets relates to the underfunded position in GSWC's pension and other retirement obligations (not including the two-way pension balancing accounts), and (iv) a $7.9 million regulatory liability related to a memorandum account authorized by the CPUC to track unrealized gains and losses on BVESI's purchase power contracts over the term of the contracts. The remainder relates to other items that do not provide for or incur carrying costs.

Regulatory assets represent costs incurred by GSWC and/or BVESI for which they have received or expect to receive rate recovery in the future. In determining the probability of costs being recognized in other periods, GSWC and BVESI consider 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 either GSWC’s or BVESI's assets are not recoverable in customer rates, the applicable utility 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 ratemaking area. Amounts expected to be collected or refunded in the next twelve months have been classified as current assets and current liabilities by ratemaking area. Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows:


(dollars in thousands)	September 30, 2021		December 31, 2020
GSWC
Water Revenue Adjustment Mechanism and Modified Cost Balancing Account	$	19,609	$	13,741
Costs deferred for future recovery on Aerojet case	5,557		6,751
Pensions and other post-retirement obligations (Note 8)	63,149		65,576
COVID-19 memorandum accounts	7,912		4,119
Excess deferred income taxes	(73,409)		(74,185)
Flow-through taxes, net	(6,620)		(9,722)
Other regulatory assets	11,372		10,670
Various refunds to customers	(3,929)		(4,577)
Total GSWC	$	23,641	$	12,373
BVESI
Derivative unrealized (gain) loss (Note 5)	(7,875)		1,537
Other regulatory assets	4,101		2,629
Total AWR	$	19,867	$	16,539

Regulatory matters are discussed in the consolidated financial statements and the notes thereto included in the Registrant's Form 10-K for the year ended December 31, 2020 filed with the SEC. The discussion below focuses on significant matters and developments since December 31, 2020.

Alternative-Revenue Programs:

GSWC records the difference between what it bills its water customers and that which is authorized by the CPUC using the Water Revenue Adjustment Mechanism ("WRAM") and the Modified Cost Balancing Account (“MCBA”) accounts approved by the CPUC. The over- or under-collection of the WRAM is aggregated with the MCBA over- or under-collection for the corresponding ratemaking area and bears interest at the current 90-day commercial paper rate.

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 in order to recognize such amounts as revenue. The recovery periods for the majority of GSWC's WRAM/MCBA balances are primarily within 12 to 24 months. During the nine months ended September 30, 2021, GSWC recorded additional net under-collections in the WRAM/MCBA accounts of approximately $10.7 million due primarily to higher-than-adopted supply costs currently in billed customer rates. As of September 30, 2021, GSWC had an aggregated regulatory asset of $19.6 million, which is comprised of a $3.4 million under-collection in the WRAM accounts and a $16.2 million under-collection in the MCBA accounts.

COVID-19 Memorandum Accounts:

The CPUC approved GSWC's and BVESI's requests to activate COVID-19-related memorandum accounts for the impact of the COVID-19 pandemic. GSWC's and BVESI's response to the pandemic has included suspending service disconnections for nonpayment, which has significantly increased the amount of delinquent customer accounts receivable during the COVID-19 pandemic. Costs incurred by GSWC and BVESI in response to the COVID-19 pandemic, including bad debt expense, in excess of what is included in their respective revenue requirements are being included in the COVID-19-related memorandum accounts for future recovery. As of September 30, 2021, GSWC and BVESI have recorded a total of $8.5 million in these accounts as regulatory assets, as it is believed such amounts are probable of recovery. The CPUC requires that amounts tracked in GSWC's and BVESI's COVID-19 memorandum accounts for unpaid customer bills be offset by any (i) federal and state relief for water utility bill debt, and (ii) customer payments through payment plan arrangements, prior to receiving recovery from customers. After these offsets are made, GSWC will file with the CPUC for recovery of the remaining balance. BVESI intends to include the remaining balance in its COVID-19 memorandum account for recovery in its next general rate case application expected to be filed in 2022.

Other Regulatory Assets:

Other regulatory assets represent costs incurred by GSWC or BVESI for which they have received or expect 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. If the CPUC determines that a portion of either GSWC’s or BVESI's assets are not recoverable in customer rates, the applicable entity must determine if it has suffered an asset impairment that requires it to write down the asset's value. Included in other regulatory assets are CPUC-approved memorandum accounts to track the costs incurred in connection with the development and implementation of BVESI’s wildfire mitigation plans (“WMPs”), which are required by California legislation to be submitted annually to the CPUC for approval. The CPUC’s Wildfire Safety Division (now part of the California Natural Resources Agency effective July 1, 2021) has engaged an independent accounting firm to conduct examinations of the expenses and capital investments identified in the 2019 and 2020 WMPs for each of the investor-owned electric utilities, including BVESI. As of September 30, 2021, BVESI has approximately $2.2 million related to expenses accumulated in its WMPs memorandum accounts that have been recognized as regulatory assets for future recovery. BVESI’s examination of these expenses, as well as the capital investments incurred for its WMPs, is currently in progress and at this time, management cannot predict the outcome or recommendations that may result from this examination.

BVESI Other CEMA Regulatory Asset: BVESI activated a CEMA account to track the incremental costs incurred in response to a severe winter storm that occurred in February 2019 and which resulted in the declaration of an emergency by the governor of California. Incremental costs of approximately $455,000 were included in the CEMA account and recorded as a regulatory asset. BVESI subsequently filed for recovery of these costs. In May 2021, the CPUC issued a final decision denying BVESI’s request for recovery, claiming that BVESI did not adequately demonstrate that the costs incurred were incremental and beyond costs already included in BVESI’s revenue requirement. The decision permits BVESI to file a new application on the issue of incrementality should it wish to continue pursuing recovery. BVESI believes the storm costs were incremental and beyond what was included in its revenue requirement, and in October 2021 filed a new application to continue pursuing recovery. As a result, the costs in this CEMA account remain a regulatory asset at September 30, 2021 as the Company continues to believe the incremental costs were properly tracked and included in the CEMA account consistent with the CPUC's well-established past practices. If BVESI does not ultimately prevail in obtaining recovery, it will result in a charge to earnings from a write-off of this CEMA regulatory asset of approximately $455,000. Management cannot currently predict the final outcome of this matter.

Earnings per Share/Capital Stock

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Earnings per Share/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, and that have been issued under AWR's stock incentive plans for employees and the non-employee directors stock 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 used for calculating basic net income per share:


Basic:	For The Three Months Ended September 30,				For The Nine Months Ended September 30,
(in thousands, except per share amounts)	2021		2020		2021		2020
Net income	$	28,153	$	26,530	$	73,997	$	66,214
Less: (a) Distributed earnings to common shareholders	13,480		12,356		38,207		34,848
Distributed earnings to participating securities	37		43		100		116
Undistributed earnings	14,636		14,131		35,690		31,250

(b) Undistributed earnings allocated to common shareholders	14,596		14,083		35,597		31,146
Undistributed earnings allocated to participating securities	40		48		93		104

Total income available to common shareholders, basic (a)+(b)	$	28,076	$	26,439	$	73,804	$	65,994

Weighted average Common Shares outstanding, basic	36,933		36,886		36,916		36,877

Basic earnings per Common Share	$	0.76	$	0.72	$	2.00	$	1.79

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 stock incentive plans for employees and the non-employee directors stock plans, and net income. There were no options outstanding as of September 30, 2021 and 2020 under these plans. At September 30, 2021 and 2020, there were 101,267 and 127,234 restricted stock units outstanding, respectively, 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 Three Months Ended September 30,				For The Nine Months Ended September 30,
(in thousands, except per share amounts)	2021		2020		2021		2020
Common shareholders earnings, basic	$	28,076	$	26,439	$	73,804	$	65,994
Undistributed earnings for dilutive stock-based awards	40		48		93		104
Total common shareholders earnings, diluted	$	28,116	$	26,487	$	73,897	$	66,098

Weighted average common shares outstanding, basic	36,933		36,886		36,916		36,877
Stock-based compensation (1)	92		116		88		113
Weighted average common shares outstanding, diluted	37,025		37,002		37,004		36,990

Diluted earnings per Common Share	$	0.76	$	0.72	$	2.00	$	1.79

(1) All of the 101,267 and 127,234 restricted stock units at September 30, 2021 and 2020, respectively, were included in the calculation of diluted EPS for the three and nine months ended September 30, 2021 and 2020.

During the nine months ended September 30, 2021, AWR issued 47,149 common shares related to restricted stock units. During the nine months ended September 30, 2020, AWR issued 42,447 common shares related to restricted stock units and stock options for approximately $30,000, under Registrant’s stock incentive plans for employees.

During the nine months ended September 30, 2021 and 2020, AWR paid $1.3 million and $1.9 million, respectively, to taxing authorities on employees' behalf for shares withheld related to net share settlements. During the nine months ended September 30, 2021 and 2020, GSWC paid $1.2 million and $1.7 million, respectively, 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.

During the three months ended September 30, 2021 and 2020, AWR paid quarterly dividends of approximately $13.5 million, or $0.365 per share, and $12.4 million, or $0.335 per share, respectively. During the nine months ended September 30, 2021 and 2020, AWR paid quarterly dividends of approximately $38.2 million, or $1.035 per share, and $34.8 million, or $0.945 per share, respectively.

During the three months ended September 30, 2021, GSWC paid dividends of $13.5 million to AWR. GSWC did not pay a dividend to AWR during the three months ended September 30, 2020. During the nine months ended September 30, 2021 and 2020, GSWC paid dividends of $38.3 million and $22.5 million, respectively, to AWR during these periods.

Derivative Instruments

9 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

BVESI purchases power under long-term contracts at a fixed cost depending on the amount of power and the period during which the power may be purchased under such contracts. These contracts provide power at a fixed cost over approximately three- and five-year terms depending on the amount of power and period during which the power is purchased under the contracts.

BVESI's purchase power contracts are subject to the accounting guidance for derivatives and require mark-to-market derivative accounting. Among other things, the CPUC authorized the use of 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 the 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 terms of the contracts. As a result, these unrealized gains and losses did not impact AWR’s earnings. As of September 30, 2021, there was a $7.9 million unrealized gain recorded as a regulatory liability in the memorandum account for the purchased power contracts. The notional volume of derivatives remaining under these long-term contracts as of September 30, 2021 was 387,821 megawatt hours.

The accounting guidance for fair value measurements applies to all financial assets and financial liabilities that are measured and reported on a fair value basis. Under the accounting guidance, BVESI has made fair value measurements that are classified and disclosed in one of the following three categories:

Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2: 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; or

Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

To value the contracts, Registrant 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 this derivative instrument 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 instruments are categorized as Level 3. Accordingly, the valuation of the derivatives on Registrant’s purchased power contract has been classified as Level 3 for all periods presented.

The following table presents changes in the fair value of the Level 3 derivatives for the three and nine months ended September 30, 2021 and 2020. The change in fair value was due to an increase in energy prices during the three and nine months ended September 30, 2021.


	For The Three Months Ended September 30,				For The Nine Months Ended September 30,
(dollars in thousands)	2021		2020		2021		2020
Fair value at beginning of the period	$	2,810	$	(3,827)	$	(1,537)	$	(3,171)
Unrealized gains on purchased power contracts	5,065		1,309		9,412		653
Fair value at end of the period	$	7,875	$	(2,518)	$	7,875	$	(2,518)

Fair Value of Financial Instruments

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

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 these items.

Investments held in a Rabbi Trust for Registrant's supplemental executive retirement plan ("SERP") are measured at fair value and totaled $28.2 million as of September 30, 2021. All equity investments in the Rabbi Trust are Level 1 (as described in Note 5) investments in mutual funds. The investments held in the Rabbi Trust are included in "Other Property and Investments" on Registrant's balance sheets.

The table below estimates the fair value of long-term debt held by GSWC. The fair values as of September 30, 2021 and December 31, 2020 were determined using rates for similar financial instruments of the same duration utilizing Level 2 (as described in Note 5) methods and assumptions. Changes in the assumptions will produce different results.


	September 30, 2021				December 31, 2020
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—GSWC (1)	$	415,788	$	501,974	$	444,271	$	559,752

___________________

(1) Excludes debt issuance costs.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesAWR's effective income tax rate (“ETR”) was 26.0% and 25.4% for the three months ended September 30, 2021 and 2020, respectively, and was 23.9% and 24.3% for the nine months ended September 30, 2021 and 2020, respectively. GSWC's ETR was 26.0% and 26.7% for the three months ended September 30, 2021 and 2020, respectively, and was 24.0% and 25.5% for the nine months ended September 30, 2021 and 2020, respectively.The AWR and GSWC effective tax rates differed from the federal corporate statutory tax rate of 21% 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 during the three and nine months ended September 30, 2021 and 2020; (iii) the ongoing amortization of the excess deferred income tax liability; 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 related items). 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.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Employee Benefit Plans

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Employee Benefit Plans

The components of net periodic benefit costs for Registrant’s pension plan, postretirement medical benefit plan and SERP for the three and nine months ended September 30, 2021 and 2020 were as follows:


	For The Three Months Ended September 30,
	Pension Benefits				Other Postretirement Benefits				SERP
(dollars in thousands)	2021		2020		2021		2020		2021		2020
Components of Net Periodic Benefits Cost:
Service cost	$	1,487	$	1,390	$	31	$	35	$	348	$	244
Interest cost	1,700		1,970		22		44		229		247
Expected return on plan assets	(3,137)		(2,950)		(134)		(130)		—		—
Amortization of prior service cost	109		109		—		—		—		—
Amortization of actuarial (gain) loss	876		484		(488)		(334)		419		211
Net periodic benefits costs under accounting standards	1,035		1,003		(569)		(385)		996		702
Regulatory adjustment - deferred	(254)		(121)		—		—		—		—
Total expense (benefit) recognized, before surcharges and allocation to overhead pool	$	781	$	882	$	(569)	$	(385)	$	996	$	702


	For The Nine Months Ended September 30,
	Pension Benefits				Other Postretirement Benefits				SERP
(dollars in thousands)	2021		2020		2021		2020		2021		2020
Components of Net Periodic Benefits Cost:
Service cost	$	4,737	$	4,170	$	111	$	129	$	1,044	$	732
Interest cost	5,124		5,910		84		156		687		741
Expected return on plan assets	(9,405)		(8,850)		(402)		(384)		—		—
Amortization of prior service cost	327		327		—		—		—		—
Amortization of actuarial (gain) loss	2,862		1,452		(1,062)		(732)		1,257		633
Net periodic benefits costs under accounting standards	3,645		3,009		(1,269)		(831)		2,988		2,106
Regulatory adjustment - deferred	(956)		(362)		—		—		—		—
Total expense (benefit) recognized, before surcharges and allocation to overhead pool	$	2,689	$	2,647	$	(1,269)	$	(831)	$	2,988	$	2,106

In September 2021, Registrant contributed approximately $3.5 million to its pension plan.

As authorized by the CPUC in the water and electric general rate case decisions, GSWC and BVESI each utilize two-way balancing accounts to track differences between the forecasted annual pension expenses in rates, or expected to be in rates, and the actual annual expense recorded in accordance with the accounting guidance for pension costs.

During the three months ended September 30, 2021 and 2020, GSWC's actual pension expense was higher than the amounts included in water customer rates by $254,000 and $121,000, respectively. During the nine months ended September 30, 2021 and 2020, GSWC's actual pension expense was higher than the amounts included in water customer rates by $956,000 and $362,000, respectively. BVESI's actual expense was lower than the amounts included in electric customer rates for all periods presented. As of September 30, 2021, GSWC and BVESI had over-collections in their two-way pension balancing accounts of $60,000 and $184,000, respectively, included as part of regulatory assets and liabilities (Note 3).

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section S99
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (o)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (p)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 60
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(03)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (q)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (r)(1)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iii)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (l)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (r)(2)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

Contingencies	9 Months Ended
Contingencies	Sep. 30, 2021
Loss Contingencies [Line Items]
Contingencies	Contingencies Environmental Clean-Up and Remediation: GSWC has been involved in an environmental remediation and cleanup at one of its plant sites that contained an underground storage tank that was used to store gasoline for its vehicles. The tank was removed from the ground in July 1990 along with its dispenser and ancillary piping. Since then, GSWC has been involved in various remediation activities at the site. Analysis indicates that off-site monitoring wells may be necessary to document effectiveness of remediation. As of September 30, 2021, the total amount spent to clean up and remediate GSWC’s plant facility was approximately $6.1 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 September 30, 2021, GSWC has a regulatory asset and an accrued liability for the estimated additional cost of $1.3 million to complete the cleanup at the site. The estimate includes costs for two 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. 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.

Business Segments

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Business Segments

AWR has three reportable segments: water, electric and contracted services. Prior to July 1, 2020, GSWC had two segments, water and electric. On July 1, 2020, GSWC completed the transfer of the electric utility assets and liabilities from its electric division to BVESI, a separate legal entity and now a wholly owned subsidiary of AWR (Note 11). On a stand-alone basis, AWR has no material assets or liabilities other than its equity investments in its subsidiaries, note payables to its subsidiaries and deferred taxes.

All activities of GSWC and BVESI are geographically located within California. Activities of ASUS and its subsidiaries are conducted in California, Florida, Georgia, Kansas, Maryland, New Mexico, North Carolina, South Carolina, Texas and Virginia. Each of ASUS’s wholly owned 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 AWR’s operating segments and AWR Parent. The utility plant amounts are net of respective accumulated provisions for depreciation. Capital additions reflect capital expenditures paid in cash, excluding U.S. government- and third-party contractor-funded capital expenditures for ASUS, and property installed by developers and conveyed to GSWC or BVESI.


	As Of And For The Three Months Ended September 30, 2021
					Contracted		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Parent		AWR
Operating revenues	$	102,768	$	8,564	$	25,423	$	—	$	136,755
Operating income (loss)	35,459		2,053		5,273		(1)		42,784
Interest expense, net	5,098		101		(141)		162		5,220
Net property, plant and equipment	1,471,740		101,952		20,854		—		1,594,546
Depreciation and amortization expense (1)	8,272		644		910		—		9,826
Income tax expense	7,993		537		1,265		83		9,878
Capital additions	26,490		3,941		143		—		30,574


	As Of And For The Three Months Ended September 30, 2020
					Contracted		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Parent		AWR
Operating revenues	$	98,701	$	8,288	$	26,699	$	—	$	133,688
Operating income (loss)	33,149		1,865		4,794		(1)		39,807
Interest expense, net	5,806		54		(74)		59		5,845
Net property, plant and equipment	1,373,323		83,188		22,599		—		1,479,110
Depreciation and amortization expense (1)	7,835		626		887		—		9,348
Income tax expense (benefit)	7,683		533		1,150		(321)		9,045
Capital additions	28,076		3,039		1,122		—		32,237


	As Of And For The Nine Months Ended September 30, 2021
					Contracted		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Parent		AWR
Operating revenues	$	269,430	$	28,211	$	84,588	$	—	$	382,229
Operating income (loss)	87,295		7,296		16,375		(6)		110,960
Interest expense, net	16,273		275		(458)		617		16,707
Net property, plant and equipment	1,471,740		101,952		20,854		—		1,594,546
Depreciation and amortization expense (1)	24,547		1,925		2,684		—		29,156
Income tax expense (benefit)	17,718		1,879		3,927		(270)		23,254
Capital additions	90,299		15,139		1,283		—		106,721


	As Of And For The Nine Months Ended September 30, 2020
					Contracted		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Parent		AWR
Operating revenues	$	257,199	$	26,935	$	79,909	$	—	$	364,043
Operating income (loss)	80,416		6,865		13,946		(5)		101,222
Interest expense, net	15,796		519		(371)		225		16,169
Net property, plant and equipment	1,373,323		83,188		22,599		—		1,479,110
Depreciation and amortization expense (1)	22,858		1,841		2,491		—		27,190
Income tax expense (benefit)	17,031		1,722		3,199		(725)		21,227
Capital additions	78,611		12,093		4,120		—		94,824

(1) Depreciation computed on GSWC’s and BVESI's transportation equipment is recorded in other operating expenses and totaled $94,000 and $84,000 for the three months ended September 30, 2021 and 2020, respectively, and totaled $283,000 and $249,000 for the nine months ended September 30, 2021 and 2020, respectively.

The following table reconciles total net property, plant and equipment (a key figure for ratemaking) to total consolidated assets (in thousands):


	September 30,
	2021		2020
Total net property, plant and equipment	1,594,546		$	1,479,110
Other assets	280,254		247,308
Total consolidated assets	$	1,874,800	$	1,726,418

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Completion of Electric Utility Reorganization Plan

9 Months Ended

Sep. 30, 2021

Restructuring and Related Activities [Abstract]

Completion of Electric Utility Reorganization Plan

Completion of Electric Utility Reorganization PlanOn July 1, 2020, GSWC completed the transfer of approximately $71.3 million in net assets and equity (based on their recorded amounts) from its electric utility division to BVESI in exchange for common shares of BVESI of equal value. This was a non-cash transaction, and no gain or loss was recognized. GSWC then immediately distributed all of BVESI's common shares to AWR, whereupon BVESI became wholly owned directly by AWR. The reorganization did not result in any substantive changes to AWR's operations or business segments. In addition, pursuant to federal and state tax law, the exchange and distribution

qualify as a tax-free reorganization; consequently, no income tax liability was triggered for the AWR consolidated group or any of its members.

The transfer between GSWC and BVESI, both wholly owned subsidiaries of AWR, was considered a common control transaction. Although the electric utility division was considered a separate business segment and component of GSWC, the transfer did not qualify as a discontinued operation based on management's assessment of the applicable accounting guidance. As a result of this transfer, from July 1, 2020 onward, operating results and cash flows of the electric segment, as well as its assets and liabilities, are no longer included in GSWC's financial statements, but continue to be included in AWR's consolidated financial statements. GSWC's statements of income and cash flows for the three and six months ended June 30, 2020 include the electric segment's results.

The table below sets forth selected information relating to the electric segment's results of operations for the nine months ended September 30, 2021 as a subsidiary of AWR, and for the six months ended June 30, 2020 while a division of GSWC plus the three months ended September 30, 2020 as a new subsidiary of AWR:


	Nine Months Ended		Six Months Ended		Three Months Ended
	September 30, 2021		June 30, 2020		September 30, 2020		Nine Months Ended
(in thousands)	(Subsidiary of AWR)		(Division of GSWC)		(Subsidiary of AWR)		September 30, 2020
Electric revenues	$	28,211	$	18,647	$	8,288	$	26,935
Operating expenses	20,915		13,647		6,423		20,070
Operating income	7,296		5,000		1,865		6,865

Net income	$	5,310	$	3,409	$	1,308	$	4,717

The table below sets forth the electric segment's post-spinoff cash flows for the nine months ended September 30, 2021, and for the three months ended September 30, 2020.


	Nine Months Ended September 30, 2021		Three Months Ended September 30, 2020
(in thousands)	(Subsidiary of AWR)		(Subsidiary of AWR)
Net cash provided from operating activities	$	7,215	$	603

Net cash used in investing activities	(15,139)		(3,039)

Net cash provided from financing activities (1)	7,824		2,999

Net change in cash and cash equivalents	(100)		563
Cash and cash equivalents, beginning of period	367		20
Cash and cash equivalents, end of period	$	267	$	583

(1) Effective July 1, 2020, BVESI has a 3-year, $35 million revolving credit facility agreement. As of September 30, 2021, there was $28.0 million outstanding under this facility. Under the terms of the credit agreement, BVESI has the option to request an increase in the facility of an additional $15.0 million subject to approval by the financial institution.

Summary of Significant Accounting Policies: (Policies)	9 Months Ended
Summary of Significant Accounting Policies: (Policies)	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Accounting, Policy	Nature of Operations: American States Water Company (“AWR”) is the parent company of Golden State Water Company (“GSWC”), Bear Valley Electric Service, Inc. ("BVESI"), 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")). The subsidiaries of ASUS are collectively referred to as the “Military Utility Privatization Subsidiaries”. On July 1, 2020, GSWC completed the transfer of the electric utility assets and liabilities from its electric division to BVESI, a separate legal entity and wholly owned subsidiary of AWR (Note 11). This reorganization did not result in any substantive changes to AWR's operations and business segments. AWR, through its wholly owned subsidiaries, serves over one million people in nine states. GSWC and BVESI are both California public utilities. GSWC is engaged in the purchase, production, distribution and sale of water throughout California serving approximately 262,500 customer connections. BVESI distributes electricity in several San Bernardino County mountain communities in California serving approximately 24,600 customer connections. The California Public Utilities Commission (“CPUC”) regulates GSWC’s and BVESI's businesses in matters including properties, rates, services, facilities, and transactions between GSWC, BVESI, and their affiliates. ASUS, through its wholly owned 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 initial 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 any of its wholly owned 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. AWR owns all of the outstanding common shares of GSWC, BVESI and ASUS. ASUS owns all of the outstanding common stock 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 ("GAAP"). Intercompany transactions and balances have been eliminated in the AWR consolidated financial statements. The consolidated financial statements included herein have been prepared by Registrant, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The December 31, 2020 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. In the opinion of management, all adjustments consisting of normal, recurring items, and estimates necessary for a fair statement of the results for the interim periods have been made. It is suggested that these consolidated financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Form 10-K for the year ended December 31, 2020 filed with the SEC.
Related Party Transactions and Financing Activities	Related Party Transactions and Financing Activities: GSWC, BVESI and ASUS provide and/or receive various support services to and from their parent, AWR, and among themselves. GSWC has allocated certain corporate office administrative and general costs to its affiliates, BVESI and ASUS, using allocation factors approved by the CPUC. GSWC allocated corporate office administrative and general costs to the electric segment of approximately $653,000 and $643,000 during the three months ended September 30, 2021 and 2020, respectively and $2.1 million and $2.2 million during the nine months ended September 30, 2021 and 2020, respectively. GSWC allocated corporate office administrative and general costs to ASUS of approximately $1.2 million during each of the three months ended September 30, 2021 and 2020, and $4.0 million and $3.8 million during the nine months ended September 30, 2021 and 2020, respectively. AWR borrows under a $200.0 million credit facility and provides funds to GSWC and ASUS in support of their operations. This credit agreement expires in May 2023. The interest rate charged to GSWC and ASUS is sufficient to cover AWR’s interest expense under the credit facility. As of September 30, 2021, there was $162.0 million outstanding under this facility. BVESI has a separate $35 million revolving credit facility to support its operations and capital expenditures. BVESI's credit facility expires in July 2023. Under the terms of the credit agreement, BVESI has the option to request an increase in the facility of an additional $15 million, which is subject to approval by the financial institution. As of September 30, 2021, there was $28.0 million outstanding under this facility. GSWC’s intercompany borrowing agreement with AWR and BVESI’s revolving credit facility are considered short-term debt arrangements by the CPUC. Both GSWC and BVESI have been authorized by the CPUC to borrow under these arrangements for a term of up to 24 months. Borrowings under these arrangements are, therefore, required to be fully paid off within a 24-month period. GSWC’s next pay-off period for its intercompany borrowings from AWR ends in May 2023, and BVESI’s pay-off period for its credit facility ends in July 2022. Accordingly, as of September 30, 2021, the $28.0 million outstanding under BVESI's credit facility has been classified as a current liability in AWR's Consolidated Balance Sheet. On May 24, 2021, GSWC redeemed early its 9.56% private placement notes in the amount of $28.0 million, which pursuant to the note agreement included a redemption premium of 3.0% on par value, or $840,000. GSWC recovers redemption premiums in its embedded cost of debt as filed in cost of capital proceedings where the cost savings from redeeming higher interest rate debt are passed on to customers. Accordingly, the redemption premium has been deferred as a regulatory asset. GSWC funded the redemption by borrowing from AWR parent. AWR, in turn, funded from its revolving credit facility. In October 2020, AWR issued an interest bearing promissory note to GSWC, which expires in May 2023. Under the terms of the note, AWR may borrow amounts up to $30 million for working capital purposes. AWR agrees to pay any unpaid principal amounts outstanding under this note, plus accrued interest. The borrowing and repayment activity of this note is reflected on GSWC's statements of cash flows under investing activities. There were no amounts outstanding under this note as of September 30, 2021.
COVID-19 Impact	COVID-19 Impact: GSWC, BVESI and ASUS have continued their operations throughout the COVID-19 pandemic given that their water, wastewater and electric utility services are deemed essential. AWR's responses take into account orders issued by the CPUC, and the guidance provided by federal, state, and local health authorities and other government officials for the COVID-19 pandemic. Some of the actions taken by GSWC and BVESI continue to include suspending service disconnections for nonpayment pursuant to CPUC and state orders, and telecommuting by employees. The suspension of water- service disconnections at GSWC was implemented in response to an executive order from the governor of California. On July 15, 2021, the CPUC issued a final decision in the second phase of the Low-Income Affordability Rulemaking which, among other things, extended the moratorium on water-service disconnections due to non-payment of past-due amounts billed to residential customers until the earlier of February 1, 2022 or pursuant to further CPUC guidance on the matter. On June 24, 2021, the CPUC issued a final decision to extend the moratorium on electric customer service disconnections until September 30, 2021. Under the terms of CPUC-adopted payment plans, actual electric service disconnections for non-payment will occur no earlier than December 1, 2021. The pandemic has caused volatility on financial markets resulting in fluctuations in the fair value of plan assets in GSWC's pension and other retirement plans. Furthermore, as discussed above, GSWC's and BVESI's response to the pandemic required the suspension of service disconnections for nonpayment, which has significantly increased the amount of delinquent customer accounts receivable during the COVID-19 pandemic. Due to the expected future credit losses on utility customer bills, GSWC and BVESI have increased their allowance for doubtful accounts for past due customer receivables. However, the CPUC has authorized GSWC and BVESI to track incremental costs, including bad debt expense, in excess of what is included in their respective revenue requirements incurred as a result of the pandemic in COVID-19-related memorandum accounts, such as a Catastrophic Event Memorandum Account ("CEMA"), which is to be filed with the CPUC for future recovery. GSWC and BVESI have recorded a combined total of approximately $8.5 million in these accounts as regulatory assets, as it is believed such amounts are probable of recovery. CEMA and other emergency-type memorandum accounts are well-established cost recovery mechanisms authorized as a result of a state/federal declared emergency, and are therefore recognized as regulatory assets for future recovery. As a result, the amounts recorded in the COVID-19-related memorandum accounts have not impacted GSWC's or BVESI's earnings. Thus far, the COVID-19 pandemic has not had a material impact on ASUS's operations. The CPUC requires that amounts tracked in GSWC's and BVESI's COVID-19 memorandum accounts for unpaid customer bills be offset by any (i) federal and state relief for water utility bill debt, and (ii) customer payments through payment plan arrangements, prior to receiving recovery from customers. After these offsets are made, GSWC will file with the CPUC for recovery of the remaining balance. BVESI intends to include the remaining balance in its COVID-19 memorandum account for recovery in its next general rate case application expected to be filed in 2022. On July 12, 2021, the governor of California approved SB-129 Budget Act of 2021, which includes almost $1 billion in relief funding for overdue water customer bills, and almost $1 billion in relief funding for overdue electric customer bills. The water utility relief funding is being managed by the State Water Resources Control Board through the California Water and Wastewater Arrearage Payment Program to provide direct assistance to community water systems to credit customer accounts for water debt accrued during the COVID-19 pandemic. The electric utility relief funding is being managed by the California Department of Community Services and Development through the California Arrearage Payment Program. Both GSWC and BVESI intend to seek recovery of overdue amounts from all available funding sources. Funds for both water and electric utility relief are expected to be distributed to utilities during the fourth quarter of 2021 or the first quarter of 2022.
Recently Issued Accounting Pronouncements	Accounting Pronouncements Adopted in 2021: In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("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 adoption of this guidance effective January 1, 2021 did not have a material impact on Registrant's financial statements.

Revenue from Contract with Customers (Tables)

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

For the three and nine months ended September 30, 2021 and 2020, disaggregated revenues from contracts with customers by segment were as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
(dollar in thousands)	2021		2020		2021		2020
Water:
Tariff-based revenues	$	100,256	$	97,036	$	261,231	$	243,553
Surcharges (cost-recovery activities)	1,095		1,217		2,604		2,913
Other	586		569		1,626		1,556
Water revenues from contracts with customers	101,937		98,822		265,461		248,022
WRAM under (over)-collection (alternative revenue program)	831		(121)		3,969		9,177
Total water revenues	102,768		98,701		269,430		257,199

Electric:
Tariff-based revenues	8,791		8,531		28,798		25,948
Surcharges (cost-recovery activities)	32		188		278		624
Electric revenues from contracts with customers	8,823		8,719		29,076		26,572
BRRAM (over) under-collection (alternative revenue program)	(259)		(431)		(865)		363
Total electric revenues	8,564		8,288		28,211		26,935

Contracted services:
Water	15,454		17,143		53,102		45,316
Wastewater	9,969		9,556		31,486		34,593
Contracted services revenues from contracts with customers	25,423		26,699		84,588		79,909

Total AWR revenues	$	136,755	$	133,688	$	382,229	$	364,043

Contract with Customer, Asset and Liability


(dollar in thousands)	September 30, 2021		December 31, 2020
Unbilled receivables	$	11,041	$	14,924
Receivable from the U.S. government	$	81,854	$	74,670
Contract assets	$	10,748	$	10,257
Contract liabilities	$	555	$	1,800

Regulatory Matters: (Tables)

9 Months Ended

Sep. 30, 2021

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:


(dollars in thousands)	September 30, 2021		December 31, 2020
GSWC
Water Revenue Adjustment Mechanism and Modified Cost Balancing Account	$	19,609	$	13,741
Costs deferred for future recovery on Aerojet case	5,557		6,751
Pensions and other post-retirement obligations (Note 8)	63,149		65,576
COVID-19 memorandum accounts	7,912		4,119
Excess deferred income taxes	(73,409)		(74,185)
Flow-through taxes, net	(6,620)		(9,722)
Other regulatory assets	11,372		10,670
Various refunds to customers	(3,929)		(4,577)
Total GSWC	$	23,641	$	12,373
BVESI
Derivative unrealized (gain) loss (Note 5)	(7,875)		1,537
Other regulatory assets	4,101		2,629
Total AWR	$	19,867	$	16,539

Earnings per Share/Capital Stock: (Tables)

9 Months Ended

Sep. 30, 2021

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


Basic:	For The Three Months Ended September 30,				For The Nine Months Ended September 30,
(in thousands, except per share amounts)	2021		2020		2021		2020
Net income	$	28,153	$	26,530	$	73,997	$	66,214
Less: (a) Distributed earnings to common shareholders	13,480		12,356		38,207		34,848
Distributed earnings to participating securities	37		43		100		116
Undistributed earnings	14,636		14,131		35,690		31,250

(b) Undistributed earnings allocated to common shareholders	14,596		14,083		35,597		31,146
Undistributed earnings allocated to participating securities	40		48		93		104

Total income available to common shareholders, basic (a)+(b)	$	28,076	$	26,439	$	73,804	$	65,994

Weighted average Common Shares outstanding, basic	36,933		36,886		36,916		36,877

Basic earnings per Common Share	$	0.76	$	0.72	$	2.00	$	1.79

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 Three Months Ended September 30,				For The Nine Months Ended September 30,
(in thousands, except per share amounts)	2021		2020		2021		2020
Common shareholders earnings, basic	$	28,076	$	26,439	$	73,804	$	65,994
Undistributed earnings for dilutive stock-based awards	40		48		93		104
Total common shareholders earnings, diluted	$	28,116	$	26,487	$	73,897	$	66,098

Weighted average common shares outstanding, basic	36,933		36,886		36,916		36,877
Stock-based compensation (1)	92		116		88		113
Weighted average common shares outstanding, diluted	37,025		37,002		37,004		36,990

Diluted earnings per Common Share	$	0.76	$	0.72	$	2.00	$	1.79

Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2021

GOLDEN STATE WATER COMPANY

Derivative Instruments, Gain (Loss) [Line Items]

Derivative Instruments


	For The Three Months Ended September 30,				For The Nine Months Ended September 30,
(dollars in thousands)	2021		2020		2021		2020
Fair value at beginning of the period	$	2,810	$	(3,827)	$	(1,537)	$	(3,171)
Unrealized gains on purchased power contracts	5,065		1,309		9,412		653
Fair value at end of the period	$	7,875	$	(2,518)	$	7,875	$	(2,518)

Fair Value of Financial Instruments: (Tables)

9 Months Ended

Sep. 30, 2021

GOLDEN STATE WATER COMPANY

Fair value of financial instruments

Schedule of estimates of the fair value of long-term debt


	September 30, 2021				December 31, 2020
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—GSWC (1)	$	415,788	$	501,974	$	444,271	$	559,752

Employee Benefit Plans: (Tables)

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Schedule of components of net periodic benefit costs, before allocation to the overhead pool, for Registrant's pension plan, postretirement plan, and SERP


	For The Three Months Ended September 30,
	Pension Benefits				Other Postretirement Benefits				SERP
(dollars in thousands)	2021		2020		2021		2020		2021		2020
Components of Net Periodic Benefits Cost:
Service cost	$	1,487	$	1,390	$	31	$	35	$	348	$	244
Interest cost	1,700		1,970		22		44		229		247
Expected return on plan assets	(3,137)		(2,950)		(134)		(130)		—		—
Amortization of prior service cost	109		109		—		—		—		—
Amortization of actuarial (gain) loss	876		484		(488)		(334)		419		211
Net periodic benefits costs under accounting standards	1,035		1,003		(569)		(385)		996		702
Regulatory adjustment - deferred	(254)		(121)		—		—		—		—
Total expense (benefit) recognized, before surcharges and allocation to overhead pool	$	781	$	882	$	(569)	$	(385)	$	996	$	702


	For The Nine Months Ended September 30,
	Pension Benefits				Other Postretirement Benefits				SERP
(dollars in thousands)	2021		2020		2021		2020		2021		2020
Components of Net Periodic Benefits Cost:
Service cost	$	4,737	$	4,170	$	111	$	129	$	1,044	$	732
Interest cost	5,124		5,910		84		156		687		741
Expected return on plan assets	(9,405)		(8,850)		(402)		(384)		—		—
Amortization of prior service cost	327		327		—		—		—		—
Amortization of actuarial (gain) loss	2,862		1,452		(1,062)		(732)		1,257		633
Net periodic benefits costs under accounting standards	3,645		3,009		(1,269)		(831)		2,988		2,106
Regulatory adjustment - deferred	(956)		(362)		—		—		—		—
Total expense (benefit) recognized, before surcharges and allocation to overhead pool	$	2,689	$	2,647	$	(1,269)	$	(831)	$	2,988	$	2,106

Business Segments: (Tables)

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Schedule of reporting segments information


	As Of And For The Three Months Ended September 30, 2021
					Contracted		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Parent		AWR
Operating revenues	$	102,768	$	8,564	$	25,423	$	—	$	136,755
Operating income (loss)	35,459		2,053		5,273		(1)		42,784
Interest expense, net	5,098		101		(141)		162		5,220
Net property, plant and equipment	1,471,740		101,952		20,854		—		1,594,546
Depreciation and amortization expense (1)	8,272		644		910		—		9,826
Income tax expense	7,993		537		1,265		83		9,878
Capital additions	26,490		3,941		143		—		30,574


	As Of And For The Three Months Ended September 30, 2020
					Contracted		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Parent		AWR
Operating revenues	$	98,701	$	8,288	$	26,699	$	—	$	133,688
Operating income (loss)	33,149		1,865		4,794		(1)		39,807
Interest expense, net	5,806		54		(74)		59		5,845
Net property, plant and equipment	1,373,323		83,188		22,599		—		1,479,110
Depreciation and amortization expense (1)	7,835		626		887		—		9,348
Income tax expense (benefit)	7,683		533		1,150		(321)		9,045
Capital additions	28,076		3,039		1,122		—		32,237


	As Of And For The Nine Months Ended September 30, 2021
					Contracted		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Parent		AWR
Operating revenues	$	269,430	$	28,211	$	84,588	$	—	$	382,229
Operating income (loss)	87,295		7,296		16,375		(6)		110,960
Interest expense, net	16,273		275		(458)		617		16,707
Net property, plant and equipment	1,471,740		101,952		20,854		—		1,594,546
Depreciation and amortization expense (1)	24,547		1,925		2,684		—		29,156
Income tax expense (benefit)	17,718		1,879		3,927		(270)		23,254
Capital additions	90,299		15,139		1,283		—		106,721


	As Of And For The Nine Months Ended September 30, 2020
					Contracted		AWR		Consolidated
(dollars in thousands)	Water		Electric		Services		Parent		AWR
Operating revenues	$	257,199	$	26,935	$	79,909	$	—	$	364,043
Operating income (loss)	80,416		6,865		13,946		(5)		101,222
Interest expense, net	15,796		519		(371)		225		16,169
Net property, plant and equipment	1,373,323		83,188		22,599		—		1,479,110
Depreciation and amortization expense (1)	22,858		1,841		2,491		—		27,190
Income tax expense (benefit)	17,031		1,722		3,199		(725)		21,227
Capital additions	78,611		12,093		4,120		—		94,824

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

The following table reconciles total net property, plant and equipment (a key figure for ratemaking) to total consolidated assets (in thousands):


	September 30,
	2021		2020
Total net property, plant and equipment	1,594,546		$	1,479,110
Other assets	280,254		247,308
Total consolidated assets	$	1,874,800	$	1,726,418

Completion of Electric Utility Reorganization Plan (Tables)

9 Months Ended

Sep. 30, 2021

Restructuring and Related Activities [Abstract]

Completion of Electric utility reorganization plan -selected information for the results of operations and its cash flows


	Nine Months Ended		Six Months Ended		Three Months Ended
	September 30, 2021		June 30, 2020		September 30, 2020		Nine Months Ended
(in thousands)	(Subsidiary of AWR)		(Division of GSWC)		(Subsidiary of AWR)		September 30, 2020
Electric revenues	$	28,211	$	18,647	$	8,288	$	26,935
Operating expenses	20,915		13,647		6,423		20,070
Operating income	7,296		5,000		1,865		6,865

Net income	$	5,310	$	3,409	$	1,308	$	4,717

The table below sets forth the electric segment's post-spinoff cash flows for the nine months ended September 30, 2021, and for the three months ended September 30, 2020.


	Nine Months Ended September 30, 2021		Three Months Ended September 30, 2020
(in thousands)	(Subsidiary of AWR)		(Subsidiary of AWR)
Net cash provided from operating activities	$	7,215	$	603

Net cash used in investing activities	(15,139)		(3,039)

Net cash provided from financing activities (1)	7,824		2,999

Net change in cash and cash equivalents	(100)		563
Cash and cash equivalents, beginning of period	367		20
Cash and cash equivalents, end of period	$	267	$	583

Summary of Significant Accounting Policies: (Details)		3 Months Ended		9 Months Ended
Summary of Significant Accounting Policies: (Details)	May 24, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) customer registrant	Sep. 30, 2020 USD ($)	Oct. 30, 2020 USD ($)	Jul. 01, 2020 USD ($)
Basis of Presentation [Abstract]
Number of registrants filing combined report \| registrant				2
Nature of Operations:
Number of customers \| customer				1,000,000
Number of States in which Entity Operates		9		9
Related Party Transactions
Incremental expansion of borrowing capacity						$ 30,000,000
Parent Company [Member] \| Syndicated Revolving Credit Facility member [Member]
Related Party Transactions
Notes Payable, Noncurrent		$ 162,000,000		$ 162,000,000
ASUS
Related Party Transactions
Payments to affiliate for corporate office administrative and general costs		1,200,000	$ 1,200,000	$ 4,000,000	$ 3,800,000
ASUS \| Contracted Services
Nature of Operations:
Period of fixed price contracts to operate and maintain water systems at various military bases				50 years
Bear Valley Electric Service, Inc.
Related Party Transactions
Payments to affiliate for corporate office administrative and general costs		653,000	$ 643,000	$ 2,100,000	$ 2,200,000
Maximum borrowing capacity on line of credit							$ 35,000,000
Incremental expansion of borrowing capacity		15,000,000		15,000,000
Outstanding borrowings		28,000,000		28,000,000
COVID-19 Impact [Line Items]
Funding for overdue electric bills per Budget Act of 2021		1,000,000,000		$ 1,000,000,000
Bear Valley Electric Service, Inc. \| Electric Service Utility Operations
Nature of Operations:
Number of customers \| customer				24,600
Golden State Water Company
Related Party Transactions
Related Party Transaction, Terms and Manner of Settlement				24
Debt Instrument, Interest Rate, Stated Percentage	9.56%
Debt Instrument, Face Amount	$ 28,000,000
Debt Instrument Redemption Premium as Percentage of Par Value after Specified Period	3.00%
Redemption price of debt instrument	$ 840,000
Notes Payable, Related Parties		0		$ 0
COVID-19 Impact [Line Items]
Water Utility Relief Funding for Overdue Water Bills per Budget Act of 2021 [Line Items]		1,000,000,000		$ 1,000,000,000
Golden State Water Company \| Water Service Utility Operations
Nature of Operations:
Number of customers \| customer				262,500
Golden State Water Company and Bear Valley Electric Service Inc.
COVID-19 Impact [Line Items]
Regulatory asset-CEMA		8,500,000		$ 8,500,000
Maximum [Member] \| Parent Company [Member] \| Revolving Credit Facility [Member]
Related Party Transactions
Line of Credit Facility, Current Borrowing Capacity		$ 200,000,000		$ 200,000,000

Revenue from Contract with Customers - Additional Information (Details) - Sales - Customer Concentration Risk	9 Months Ended
	Sep. 30, 2021
GOLDEN STATE WATER COMPANY \| Water Service Utility Operations [Member]
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage	90.00%
Golden State Water Company and Bear Valley Electric Service Inc. \| Electric Service Utility Operations
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage	90.00%

Revenue from Contract with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total operating revenues	$ 136,755	$ 133,688	$ 382,229	$ 364,043
GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Total operating revenues	102,768	98,701	269,430	275,846
Water Service Utility Operations \| GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	101,937	98,822	265,461	248,022
Total operating revenues	102,768	98,701	269,430	257,199
Electric Service Utility Operations \| Bear Valley Electric Service, Inc.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	8,823	8,719	29,076
Total operating revenues	8,564	8,288	28,211
Electric Service Utility Operations \| Golden State Water Company and Bear Valley Electric Service Inc.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax				26,572
Total operating revenues				26,935
Contracted Services \| ASUS
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	25,423	26,699	84,588	79,909
Tariff-based Revenues \| Water Service Utility Operations \| GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	100,256	97,036	261,231	243,553
Tariff-based Revenues \| Electric Service Utility Operations \| Bear Valley Electric Service, Inc.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	8,791	8,531	28,798
Tariff-based Revenues \| Electric Service Utility Operations \| Golden State Water Company and Bear Valley Electric Service Inc.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax				25,948
Surcharges (Cost-recovery Activities) \| Water Service Utility Operations \| GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,095	1,217	2,604	2,913
Surcharges (Cost-recovery Activities) \| Electric Service Utility Operations \| Bear Valley Electric Service, Inc.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	32	188	278
Surcharges (Cost-recovery Activities) \| Electric Service Utility Operations \| Golden State Water Company and Bear Valley Electric Service Inc.
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax				624
Other Products and Services \| Water Service Utility Operations \| GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	586	569	1,626	1,556
Alternative revenues program [Member] \| Water Service Utility Operations \| GOLDEN STATE WATER COMPANY
Disaggregation of Revenue [Line Items]
Alternative revenue program	831	121	(3,969)	(9,177)
Alternative revenues program [Member] \| Electric Service Utility Operations \| Bear Valley Electric Service, Inc.
Disaggregation of Revenue [Line Items]
Alternative revenue program	(259)	431	865
Alternative revenues program [Member] \| Electric Service Utility Operations \| Golden State Water Company and Bear Valley Electric Service Inc.
Disaggregation of Revenue [Line Items]
Alternative revenue program				(363)
Water \| Contracted Services \| ASUS
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	15,454	17,143	53,102	45,316
Wastewater \| Contracted Services \| ASUS
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 9,969	$ 9,556	$ 31,486	$ 34,593

Revenue from Contract with Customers - Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Unbilled receivable	$ 25,517	$ 25,517	$ 25,836
Contract with Customer, Liability, Revenue Recognized	0	838
Revenue, Remaining Performance Obligation, Amount	3,300,000	3,300,000
ASUS
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Unbilled receivable	11,041	11,041	14,924
Receivable from the U.S. government	81,854	81,854	74,670
Contract assets	10,748	10,748	10,257
Contract liabilities	$ 555	$ 555	$ 1,800
Maximum \| ASUS
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation		47
Minimum \| ASUS
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation		33
Contracted Services [Member] \| ASUS
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Period of Fixed Price Contracts to Operate and Maintain Water Systems at Various Military Bases		50 years

Regulatory Matters: (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Regulatory matters:
Regulatory asset not accruing carrying costs	$ (28,200)
Regulatory assets	(19,867)	$ (16,539)
Pension and other post-retirement obligations
Regulatory matters:
Regulatory asset not accruing carrying costs	(63,200)
Deferred Income Tax Charge
Regulatory matters:
Regulatory asset not accruing carrying costs	(77,400)
Flow-through taxes, net
Regulatory matters:
Regulatory asset not accruing carrying costs	(7,200)
Derivative unrealized (gain) loss
Regulatory matters:
Regulatory asset not accruing carrying costs	(7,900)
Bear Valley Electric Service, Inc.
Regulatory matters:
Regulatory asset-Wildfire mitigation Plans (WMP)	2,200
Regulatory asset CEMA - Storm	455
Bear Valley Electric Service, Inc. \| Other Regulatory Assets Net [Member]
Regulatory matters:
Regulatory assets	(4,101)	(2,629)
Bear Valley Electric Service, Inc. \| Derivative unrealized (gain) loss
Regulatory matters:
Regulatory assets	7,875	(1,537)
Golden State Water Company
Regulatory matters:
Regulatory assets	(23,641)	(12,373)
Golden State Water Company \| Revenue Subject to Refund [Member]
Regulatory matters:
Regulatory assets	3,929	4,577
Golden State Water Company \| Costs deferred for future recovery on Aerojet case
Regulatory matters:
Regulatory assets	(5,557)	(6,751)
Golden State Water Company \| Pension and other post-retirement obligations
Regulatory matters:
Regulatory assets	(63,149)	(65,576)
Golden State Water Company \| Catastrophic Event Memo Account (CEMA) [Member]
Regulatory matters:
Regulatory assets	(7,912)	(4,119)
Golden State Water Company \| Deferred Income Tax Charge
Regulatory matters:
Regulatory assets	73,409	74,185
Golden State Water Company \| Flow-through taxes, net
Regulatory matters:
Regulatory assets	6,620	9,722
Golden State Water Company \| Other Regulatory Assets Net [Member]
Regulatory matters:
Regulatory assets	(11,372)	(10,670)
Golden State Water Company \| Water Revenue Adjustment Mechanism and Modified Cost Balancing Account
Regulatory matters:
Regulatory assets	(19,609)	$ (13,741)
Golden State Water Company \| Water Revenue Adjustment Mechanism [Member]
Regulatory matters:
Regulatory assets	(3,400)
Golden State Water Company and Bear Valley Electric Service Inc.
Regulatory matters:
Regulatory asset-CEMA	$ 8,500

Regulatory Matters: Alternative-Revenue Programs (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Regulatory matters:
Regulatory assets	$ 19,867	$ 16,539
Water Revenue Adjustment Mechanism and Modified Cost Balancing Account
Regulatory matters:
Increase (Decrease) in Other Regulatory Assets	10,700
Increase (decrease) in other regulatory assets	10,700
GOLDEN STATE WATER COMPANY
Regulatory matters:
Regulatory assets	$ 23,641	12,373
GOLDEN STATE WATER COMPANY \| Water Revenue Adjustment Mechanism and Modified Cost Balancing Account
Regulatory matters:
Commercial paper, term	90 days
Regulatory assets	$ 19,609	$ 13,741
GOLDEN STATE WATER COMPANY \| Water Revenue Adjustment Mechanism and Modified Cost Balancing Account \| Minimum
Regulatory matters:
Regulatory Asset Recovery Periods	12 months
GOLDEN STATE WATER COMPANY \| Water Revenue Adjustment Mechanism and Modified Cost Balancing Account \| Maximum
Regulatory matters:
Regulatory Asset Recovery Periods	24 months
GOLDEN STATE WATER COMPANY \| Water Revenue Adjustment Mechanism [Member]
Regulatory matters:
Regulatory assets	$ 3,400
GOLDEN STATE WATER COMPANY \| Modified Cost Balancing Account
Regulatory matters:
Regulatory assets	$ 16,200

Earnings per Share/Capital Stock: (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Exercise of stock options and other issuances of Common Shares	$ 0	$ 0	$ 0	$ 0		$ 30		$ 30
Dividends Declared Per Common Share (in dollars per share)	$ 0.365			$ 0.335			$ 1.035	$ 0.945
Payment, Tax Withholding, Share-based Payment Arrangement							$ 1,287	$ 1,857
Dividends paid							38,207	34,848
Basic
Net income	$ 28,153	$ 26,576	$ 19,268	$ 26,530	$ 25,612	$ 14,072	73,997	66,214
Weighted Average Dividends Common Stock	13,480			12,356			38,207	34,848
Less: Distributed earnings to participating securities	37			43			100	116
Undistributed earnings	14,636			14,131			35,690	31,250
Undistributed earnings allocated to common shareholders	14,596			14,083			35,597	31,146
Undistributed earnings allocated to participating securities	40			48			93	104
Total income available to common shareholders, basic	$ 28,076			$ 26,439			$ 73,804	$ 65,994
Weighted average Common Shares outstanding, basic (in shares)	36,933			36,886			36,916	36,877
Basic earnings per Common Share (in dollars per share)	$ 0.76			$ 0.72			$ 2.00	$ 1.79
Diluted
Total income available to common shareholders, basic	$ 28,076			$ 26,439			$ 73,804	$ 65,994
Undistributed earnings for dilutive stock-based awards	40			48			93	104
Total common shareholders earnings, diluted	$ 28,116			$ 26,487			$ 73,897	$ 66,098
Weighted average Common Shares outstanding, basic (in shares)	36,933			36,886			36,916	36,877
Stock-based compensation (in shares)	92			116			88	113
Weighted Average Number of Diluted Shares (in shares)	37,025			37,002			37,004	36,990
Diluted earnings per Common Share (in dollars per share)	$ 0.76			$ 0.72			$ 2.00	$ 1.79

Earnings per Share/Capital Stock: (Details 2) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Additional disclosure
Options outstanding (in shares)	0			0			0	0
Restricted stock units outstanding (in shares)	101,267			127,234			101,267	127,234
Common Shares issued under DRP and the 2000 and 2008 Employee Plans							47,149	42,447
Payment, Tax Withholding, Share-based Payment Arrangement							$ 1,287	$ 1,857
Weighted Average Dividends Common Stock	$ 13,480			$ 12,356			38,207	34,848
Dividends paid							$ 38,207	$ 34,848
Dividends Declared Per Common Share (in dollars per share)	$ 0.365			$ 0.335			$ 1.035	$ 0.945
Net income	$ 28,153	$ 26,576	$ 19,268	$ 26,530	$ 25,612	$ 14,072	$ 73,997	$ 66,214
Total income available to common shareholders, basic	28,076			26,439			73,804	65,994
Preferred Stock Dividends and Other Adjustments	37			43			100	116
Undistributed Earnings, Basic	14,636			14,131			35,690	31,250
Undistributed earnings allocated to common shareholders	14,596			14,083			35,597	31,146
Undistributed earnings allocated to participating securities	$ 40			$ 48			$ 93	$ 104
Weighted average Common Shares outstanding, basic (in shares)	36,933,000			36,886,000			36,916,000	36,877,000
Basic earnings per Common Share (in dollars per share)	$ 0.76			$ 0.72			$ 2.00	$ 1.79
AWR
Additional disclosure
Dividends paid	$ 13,500			$ 12,400			$ 38,200	$ 34,800
GOLDEN STATE WATER COMPANY
Additional disclosure
Payment, Tax Withholding, Share-based Payment Arrangement							1,163	1,654
Dividends paid	13,500						38,300	22,500
Net income	$ 22,797	$ 20,960	$ 12,231	$ 21,143	$ 20,919	$ 11,202	$ 55,988	$ 53,264

Derivative Instruments (Details) $ in Thousands	3 Months Ended		9 Months Ended
Derivative Instruments (Details) $ in Thousands	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) MWh	Sep. 30, 2020 USD ($)
Commodity Contract
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at end of the period	$ (7,900)		$ (7,900)
GOLDEN STATE WATER COMPANY
Derivative Instruments, Gain (Loss) [Line Items]
Description of derivative activity volume \| MWh			387,821
GOLDEN STATE WATER COMPANY \| Minimum \| Commodity Contract
Derivative Instruments, Gain (Loss) [Line Items]
Term of derivative contract			3 years
GOLDEN STATE WATER COMPANY \| Maximum \| Commodity Contract
Derivative Instruments, Gain (Loss) [Line Items]
Term of derivative contract			5 years
Bear Valley Electric Service, Inc. \| Commodity Contract
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of the period	2,810	$ (3,827)	$ (1,537)	$ (3,171)
Unrealized gains on purchased power contracts	5,065	1,309	9,412	653
Fair value at end of the period	$ 7,875	$ (2,518)	$ 7,875	$ (2,518)

Fair Value of Financial Instruments: (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
GOLDEN STATE WATER COMPANY \| Reported Value Measurement
Fair value of financial instruments
Long-term Debt, Fair Value	$ 415,788	$ 444,271
GOLDEN STATE WATER COMPANY \| Estimate of Fair Value Measurement
Fair value of financial instruments
Long-term Debt, Fair Value	501,974	$ 559,752
Mutual Funds \| Fair Value, Inputs, Level 1
Financial liabilities:
Long-term debt-GSWC	$ 28,200

Income Taxes: (Details)	3 Months Ended		9 Months Ended
Income Taxes: (Details)	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Effective income tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%
Golden State Water Company
Effective income tax rate
ETRs ( as a percent)	26.00%	26.70%	24.00%	25.50%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Parent [Member]
Effective income tax rate
ETRs ( as a percent)	26.00%	25.40%	23.90%	24.30%

Employee Benefit Plans: (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Employee Benefit Plans: (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Components of Net Periodic Benefits Cost:
Increase (Decrease) in Regulatory Assets and Liabilities			$ (8,319)	$ (367)
GOLDEN STATE WATER COMPANY
Components of Net Periodic Benefits Cost:
Increase (Decrease) in Regulatory Assets and Liabilities			(7,316)	582
Pension Benefits
Components of Net Periodic Benefits Cost:
Service cost	$ 1,487	$ 1,390	4,737	4,170
Interest cost	1,700	1,970	5,124	5,910
Expected return on plan assets	(3,137)	(2,950)	(9,405)	(8,850)
Amortization of prior service cost	109	109	327	327
Amortization of actuarial (gain) loss	876	484	2,862	1,452
Net periodic benefits costs under accounting standards	1,035	1,003	3,645	3,009
Increase (Decrease) in Regulatory Assets and Liabilities	(254)	(121)	(956)	(362)
Defined Benefit Plan, Net Periodic Benefit Cost before Allocation to Overhead Pool	781	882	2,689	2,647
Expected contributions in current fiscal year	3,500		3,500
Pension Benefits \| GOLDEN STATE WATER COMPANY
Components of Net Periodic Benefits Cost:
Regulatory adjustment — deferred	(60)		(60)
Pension Benefits \| Bear Valley Electric Service, Inc.
Components of Net Periodic Benefits Cost:
Regulatory adjustment — deferred	(184)		(184)
Other Postretirement Benefits
Components of Net Periodic Benefits Cost:
Service cost	31	35	111	129
Interest cost	22	44	84	156
Expected return on plan assets	(134)	(130)	(402)	(384)
Amortization of prior service cost	0	0	0	0
Amortization of actuarial (gain) loss	(488)	(334)	(1,062)	(732)
Net periodic benefits costs under accounting standards	(569)	(385)	(1,269)	(831)
Increase (Decrease) in Regulatory Assets and Liabilities	0	0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost before Allocation to Overhead Pool	(569)	(385)	(1,269)	(831)
SERP
Components of Net Periodic Benefits Cost:
Service cost	348	244	1,044	732
Interest cost	229	247	687	741
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	0	0	0	0
Amortization of actuarial (gain) loss	419	211	1,257	633
Net periodic benefits costs under accounting standards	996	702	2,988	2,106
Increase (Decrease) in Regulatory Assets and Liabilities	0	0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost before Allocation to Overhead Pool	996	702	2,988	2,106
Water Service Utility Operations [Member] \| Pension Benefits \| GOLDEN STATE WATER COMPANY
Components of Net Periodic Benefits Cost:
Increase (Decrease) in Regulatory Assets and Liabilities	$ (254)	$ (121)	$ (956)	$ (362)

Contingencies (Details) $ in Millions	9 Months Ended
Contingencies (Details) $ in Millions	Sep. 30, 2021 USD ($)
Loss Contingencies [Line Items]
Amount spent in clean-up and remediation activities [Abstract]	$ 1.5
Term estimate for the environmental cleanup	2 years
Environmental Clean-Up and Remediation \| GOLDEN STATE WATER COMPANY
Loss Contingencies [Line Items]
Environmental Remediation Expense	$ 6.1
Accrued liability for the estimated additional cost to complete the clean-up at the site	$ 1.3

Business Segments: (Details) $ in Thousands	3 Months Ended		9 Months Ended
Business Segments: (Details) $ in Thousands	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) segment	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Details of reportable segment
Revenues	$ 136,755	$ 133,688	$ 382,229	$ 364,043
Operating income (loss)	42,784	39,807	110,960	101,222
Interest expense, net	(5,220)	(5,845)	(16,707)	(16,169)
Net property, plant and equipment	1,594,546	1,479,110	1,594,546	1,479,110	$ 1,512,043
Depreciation and amortization	9,826	9,348	29,156	27,190
Income tax expense	9,878	9,045	23,254	21,227
Capital additions	30,574	32,237	$ 106,721	94,824
AWR
Details of reportable segment
Number of reportable segments \| segment			3
GOLDEN STATE WATER COMPANY
Details of reportable segment
Number of reportable segments \| segment			2
Revenues	102,768	98,701	$ 269,430	275,846
Operating income (loss)	35,459	33,149	87,295	85,416
Net property, plant and equipment	1,471,740		1,471,740		$ 1,400,489
Depreciation and amortization	8,272	7,835	24,547	24,073
Income tax expense	7,993	7,683	17,718	18,220
GOLDEN STATE WATER COMPANY \| Water Service Utility Operations
Details of reportable segment
Revenues	102,768	98,701	$ 269,430	257,199
ASUS \| Contracted Services
Details of reportable segment
Period of fixed price contracts to operate and maintain water systems at various military bases			50 years
Bear Valley Electric Service, Inc. \| Electric Service Utility Operations
Details of reportable segment
Revenues	8,564	8,288	$ 28,211
Golden State Water Company and Bear Valley Electric Service Inc.
Details of reportable segment
Public Utilities Property Plant and Equipment Depreciation on Transportation Equipment	94	84	283	249
Golden State Water Company and Bear Valley Electric Service Inc. \| Electric Service Utility Operations
Details of reportable segment
Revenues				26,935
Reportable Legal Entities \| GOLDEN STATE WATER COMPANY \| Water Service Utility Operations
Details of reportable segment
Revenues	102,768	98,701	269,430	257,199
Operating income (loss)	35,459	33,149	87,295	80,416
Interest expense, net	(5,098)	(5,806)	(16,273)	(15,796)
Net property, plant and equipment	1,471,740	1,373,323	1,471,740	1,373,323
Depreciation and amortization	8,272	7,835	24,547	22,858
Income tax expense	7,993	7,683	17,718	17,031
Capital additions	26,490	28,076	90,299	78,611
Reportable Legal Entities \| ASUS \| Contracted Services
Details of reportable segment
Revenues	25,423	26,699	84,588	79,909
Operating income (loss)	5,273	4,794	16,375	13,946
Interest expense, net	141	(74)	458	371
Net property, plant and equipment	20,854	22,599	20,854	22,599
Depreciation and amortization	910	887	2,684	2,491
Income tax expense	1,265	1,150	3,927	3,199
Capital additions	143	1,122	1,283	4,120
Reportable Legal Entities \| Bear Valley Electric Service, Inc. \| Electric Service Utility Operations
Details of reportable segment
Revenues	8,564	8,288	28,211
Operating income (loss)	2,053	1,865	7,296
Interest expense, net	(101)	(54)	(275)
Net property, plant and equipment	101,952	83,188	101,952	83,188
Depreciation and amortization	644	626	1,925
Income tax expense	537	533	1,879
Capital additions	3,941	3,039	15,139
Reportable Legal Entities \| Golden State Water Company and Bear Valley Electric Service Inc. \| Electric Service Utility Operations
Details of reportable segment
Revenues				26,935
Operating income (loss)				6,865
Interest expense, net				(519)
Depreciation and amortization				1,841
Income tax expense				1,722
Capital additions				12,093
Intersegment Eliminations \| AWR
Details of reportable segment
Revenues	0	0	0	0
Operating income (loss)	(1)	(1)	(6)	(5)
Interest expense, net	162	59	617	225
Net property, plant and equipment	0	0	0	0
Depreciation and amortization	0	0	0	0
Income tax expense	83	(321)	(270)	(725)
Capital additions	$ 0	$ 0	$ 0	$ 0

Business Segments: (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Business Segments: (Details 2) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Details of reportable segment
Total utility plant	$ 1,594,546	$ 1,479,110	$ 1,594,546	$ 1,479,110	$ 1,512,043
Other assets	280,254	247,308	280,254	247,308
Total Assets	1,874,800	1,726,418	1,874,800	1,726,418	1,791,603
GOLDEN STATE WATER COMPANY
Details of reportable segment
Total utility plant	1,471,740		1,471,740		1,400,489
Total Assets	1,618,114		1,618,114		$ 1,560,782
Golden State Water Company and Bear Valley Electric Service Inc.
Details of reportable segment
Depreciation on transportation equipment	$ 94	$ 84	$ 283	$ 249

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

+ Details

Completion of Electric Utility Reorganization Plan (Details) - USD ($) $ in Thousands		3 Months Ended						6 Months Ended	9 Months Ended
	Jul. 01, 2020	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Oct. 30, 2020
Completion of Electric Utility Reorganization Plan[Line Items]
Gain (loss) on asset transfer	$ 0
Electric		$ 8,564			$ 8,288				$ 28,211	$ 26,935
Net income		28,153	$ 26,576	$ 19,268	26,530	$ 25,612	$ 14,072		73,997	66,214
Net cash provided from operating activities									81,923	87,843
Net cash used in investing activities									(106,492)	(94,637)
Net cash provided from financing activities (1)									(5,027)	13,587
Incremental expansion of borrowing capacity											$ 30,000
Bear Valley Electric Service, Inc.
Completion of Electric Utility Reorganization Plan[Line Items]
Net assets transferred	71,300
Bear Valley Electric Service, Inc.
Completion of Electric Utility Reorganization Plan[Line Items]
Taxes Payable	$ 0
Debt instrument term	3 years
Maximum borrowing capacity on line of credit	$ 35,000
Outstanding borrowings		28,000							28,000
Incremental expansion of borrowing capacity		15,000							15,000
Bear Valley Electric Service, Inc. \| Electric Service Utility Operations
Completion of Electric Utility Reorganization Plan[Line Items]
Electric					8,288				28,211	26,935
Operating expenses					6,423				20,915	20,070
Operating income					1,865				7,296	6,865
Net income					1,308				5,310	4,717
Net cash provided from operating activities					603				7,215
Net cash used in investing activities					(3,039)				(15,139)
Net cash provided from financing activities (1)					2,999				7,824
Net change in cash and cash equivalents					563				(100)
Cash and cash equivalents, beginning of period	$ 20			367	20				367
Cash and cash equivalents, end of period		267			583	20		$ 20	267	583
Golden State Water Company
Completion of Electric Utility Reorganization Plan[Line Items]
Electric		0			0				0	18,647
Net income		$ 22,797	$ 20,960	$ 12,231	$ 21,143	$ 20,919	$ 11,202		55,988	53,264
Net cash provided from operating activities									73,327	75,093
Net cash used in investing activities									(90,118)	(87,529)
Net cash provided from financing activities (1)									$ (15,828)	$ 16,108
Golden State Water Company \| Electric Service Utility Operations
Completion of Electric Utility Reorganization Plan[Line Items]
Electric								18,647
Operating expenses								13,647
Operating income								5,000
Net income								$ 3,409