$AWR
AMERICAN STATES WATER CO Stock $awr

$awr Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000162828024005922 Filed on February 21, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$135.3M	$125.2M	$595.7M
YoY Change	-16.21%	-0.15%	21.19%
Cost Of Revenue	$20.93M	$24.03M	$57.91M
YoY Change	-3.32%	-8.84%	8.92%
Gross Profit	$114.3M	$101.2M	$537.8M
YoY Change	-18.21%	2.16%	22.68%
Gross Profit Margin	84.53%	80.81%	90.28%
Selling, General & Admin	$25.35M	$22.24M	$88.27M
YoY Change	7.64%	5.11%	2.42%
% of Gross Profit	22.17%	21.99%	16.41%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$10.72M	$10.95M	$42.40M
YoY Change	-4.29%	-0.5%	2.63%
% of Gross Profit	9.38%	10.83%	7.88%
Operating Expenses	$75.35M	$66.38M	$300.1M
YoY Change	-14.97%	-7.13%	14.48%
Operating Profit	$38.97M	$34.78M	$196.7M
YoY Change	-23.83%	26.29%	55.36%
Interest Expense	$12.86M	-$9.238M	$42.76M
YoY Change	35.59%	35.02%	58.22%
% of Operating Profit	32.98%	-26.56%	21.74%
Other Income/Expense, Net	-$8.443M	$2.883M	-$30.22M
YoY Change	40.58%	15.55%	22.97%
Pretax Income	$30.53M	$28.52M	$166.5M
YoY Change	-32.39%	22.59%	63.16%
Income Tax	$7.396M	$8.096M	$41.60M
% Of Pretax Income	24.22%	28.38%	24.98%
Net Earnings	$23.14M	$20.34M	$124.9M
YoY Change	-32.76%	9.48%	59.35%
Net Earnings / Revenue	17.11%	16.25%	20.97%
Basic Earnings Per Share	$0.62		$3.37
Diluted Earnings Per Share	$0.62	$0.55	$3.36
COMMON SHARES
Basic Shares Outstanding	36.99M shares	36.98M shares	36.98M shares
Diluted Shares Outstanding	37.11M shares		37.08M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$17.01M	$14.07M	$14.07M
YoY Change	93.37%	-21.13%	-21.13%
Cash & Equivalents	$17.01M	$14.07M	$14.07M
Short-Term Investments		$0.00	$0.00
Other Short-Term Assets	$81.16M	$74.43M	$74.43M
YoY Change	79.7%	85.41%	85.41%
Inventory	$16.23M	$17.57M	$17.57M
Prepaid Expenses
Receivables	$28.90M	$34.25M	$99.85M
Other Receivables	$0.00	$52.00K	$52.00K
Total Short-Term Assets	$205.1M	$206.0M	$206.0M
YoY Change	46.82%	36.14%	36.14%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.934B	$1.892B	$1.943B
YoY Change	8.61%	7.9%	7.94%
Goodwill	$1.116M	$1.116M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$18.93M	$18.76M	$44.34M
YoY Change	41.23%	38.62%	130.64%
Total Long-Term Assets	$2.088B	$2.040B	$2.040B
YoY Change	8.7%	8.34%	8.34%
TOTAL ASSETS
Total Short-Term Assets	$205.1M	$206.0M	$206.0M
Total Long-Term Assets	$2.088B	$2.040B	$2.040B
Total Assets	$2.293B	$2.246B	$2.246B
YoY Change	11.29%	10.41%	10.41%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$69.58M	$68.71M	$68.71M
YoY Change	5.9%	-19.03%	-19.03%
Accrued Expenses	$41.80M	$39.86M	$39.86M
YoY Change	396.97%	6.41%	6.41%
Deferred Revenue	$653.0K	$1.352M
YoY Change	16.61%	49.72%
Short-Term Debt	$43.00M	$42.00M	$42.00M
YoY Change	-75.5%	-83.56%	-83.56%
Long-Term Debt Due	$358.0K	$353.0K	$353.0K
YoY Change	-11.39%	-11.53%	-11.53%
Total Short-Term Liabilities	$178.6M	$166.6M	$166.6M
YoY Change	-41.96%	-57.98%	-57.98%
LONG-TERM LIABILITIES
Long-Term Debt	$575.5M	$575.6M	$867.1M
YoY Change	-0.16%	28.89%	85.05%
Other Long-Term Liabilities	$14.52M	$14.41M	$274.8M
YoY Change	0.05%	0.06%	-11.39%
Total Long-Term Liabilities	$590.0M	$727.8M	$1.142B
YoY Change	-0.15%	51.08%	46.64%
TOTAL LIABILITIES
Total Short-Term Liabilities	$178.6M	$166.6M	$166.6M
Total Long-Term Liabilities	$590.0M	$727.8M	$1.142B
Total Liabilities	$768.6M	$894.5M	$1.470B
YoY Change	-14.47%	1.84%	10.96%
SHAREHOLDERS EQUITY
Retained Earnings	$520.1M	$512.9M
YoY Change	10.89%	14.14%
Common Stock	$280.4M	$263.2M
YoY Change	7.1%	1.16%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$800.5M	$776.1M	$776.1M
YoY Change
Total Liabilities & Shareholders Equity	$2.293B	$2.246B	$2.246B
YoY Change	11.29%	10.41%	10.41%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$23.14M	$20.34M	$124.9M
YoY Change	-32.76%	9.48%	59.35%
Depreciation, Depletion And Amortization	$10.72M	$10.95M	$42.40M
YoY Change	-4.29%	-0.5%	2.63%
Cash From Operating Activities	$45.81M	$11.18M	$67.68M
YoY Change	557.83%	-59.87%	-42.54%
INVESTING ACTIVITIES
Capital Expenditures	$47.55M	$52.44M	$188.5M
YoY Change	-3.62%	18.69%	13.41%
Acquisitions
YoY Change
Other Investing Activities	-$136.0K	-$1.224M	$224.0K
YoY Change	-20.93%	3.47%	-75.68%
Cash From Investing Activities	-$47.41M	-$53.56M	-$188.8M
YoY Change	-3.56%	18.07%	12.96%
FINANCING ACTIVITIES
Cash Dividend Paid	$15.91M		$61.20M
YoY Change	8.23%		8.59%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$115.0K		$334.0K
YoY Change	5.5%		-11.41%
Cash From Financing Activities	$4.537M	47.86M	$129.2M
YoY Change	-88.16%	125.32%	156.58%
NET CHANGE
Cash From Operating Activities	$45.81M	11.18M	$67.68M
Cash From Investing Activities	-$47.41M	-53.56M	-$188.8M
Cash From Financing Activities	$4.537M	47.86M	$129.2M
Net Change In Cash	$2.934M	5.476M	$8.076M
YoY Change	-175.79%	46.46%	681.04%
FREE CASH FLOW
Cash From Operating Activities	$45.81M	$11.18M	$67.68M
Capital Expenditures	$47.55M	$52.44M	$188.5M
Free Cash Flow	-$1.739M	-$41.26M	-$120.9M
YoY Change	-95.9%	152.83%	149.49%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001056903
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2023Q2	us-gaap	Debt Instrument Term DebtInstrumentTerm	P5Y
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	001-14431
CY2023	dei	Entity Registrant Name EntityRegistrantName	American States Water Company
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	95-4676679
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	CA
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	630 E. Foothill Boulevard,
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	San Dimas
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	91773-1212
CY2023	dei	City Area Code CityAreaCode	(909)
CY2023	dei	Local Phone Number LocalPhoneNumber	394-3600
CY2023	dei	Security12b Title Security12bTitle	Common Shares
CY2023	dei	Trading Symbol TradingSymbol	AWR
CY2023	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	3189000557	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	36988764	shares
CY2023	dei	Auditor Firm AuditorFirmId	238
CY2023	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2023	dei	Auditor Location AuditorLocation	Los Angeles, California
CY2023Q4	awr	Utilities Water Property Plant And Equipment Gross UtilitiesWaterPropertyPlantAndEquipmentGross	2082927000	usd
CY2022Q4	awr	Utilities Water Property Plant And Equipment Gross UtilitiesWaterPropertyPlantAndEquipmentGross	2006468000	usd
CY2023Q4	awr	Utilities Electric Property Plant And Equipment Gross UtilitiesElectricPropertyPlantAndEquipmentGross	156471000	usd
CY2022Q4	awr	Utilities Electric Property Plant And Equipment Gross UtilitiesElectricPropertyPlantAndEquipmentGross	133815000	usd
CY2023Q4	awr	Utilities Property Plant And Equipment Gross UtilitiesPropertyPlantAndEquipmentGross	2239398000	usd
CY2022Q4	awr	Utilities Property Plant And Equipment Gross UtilitiesPropertyPlantAndEquipmentGross	2140283000	usd
CY2023Q4	awr	Non Utilities Property Plant And Equipment Gross NonUtilitiesPropertyPlantAndEquipmentGross	40223000	usd
CY2022Q4	awr	Non Utilities Property Plant And Equipment Gross NonUtilitiesPropertyPlantAndEquipmentGross	38066000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2279621000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2178349000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	624472000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	606231000	usd
CY2023Q4	awr	Property Plant And Equipment Before Construction Work In Progress PropertyPlantAndEquipmentBeforeConstructionWorkInProgress	1655149000	usd
CY2022Q4	awr	Property Plant And Equipment Before Construction Work In Progress PropertyPlantAndEquipmentBeforeConstructionWorkInProgress	1572118000	usd
CY2023Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	237131000	usd
CY2022Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	181648000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1892280000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1753766000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1116000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1116000	usd
CY2023Q4	awr	Property Plant And Equipment And Investments Other Net PropertyPlantAndEquipmentAndInvestmentsOtherNet	42932000	usd
CY2022Q4	awr	Property Plant And Equipment And Investments Other Net PropertyPlantAndEquipmentAndInvestmentsOtherNet	36907000	usd
CY2023Q4	awr	Property Plant And Equipment And Investments Other And Goodwill Net PropertyPlantAndEquipmentAndInvestmentsOtherAndGoodwillNet	44048000	usd
CY2022Q4	awr	Property Plant And Equipment And Investments Other And Goodwill Net PropertyPlantAndEquipmentAndInvestmentsOtherAndGoodwillNet	38023000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14073000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5997000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	34250000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	26206000	usd
CY2023Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	23516000	usd
CY2022Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	20663000	usd
CY2023Q4	awr	Accounts Receivable From Us Government Net Current AccountsReceivableFromUSGovernmentNetCurrent	49306000	usd
CY2022Q4	awr	Accounts Receivable From Us Government Net Current AccountsReceivableFromUSGovernmentNetCurrent	34974000	usd
CY2023Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	6340000	usd
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CY2023Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	52000	usd
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CY2022Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	14623000	usd
CY2023Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	45144000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	14028000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5767000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5450000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	9956000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	9390000	usd
CY2023Q4	us-gaap	Energy Marketing Contracts Assets Current EnergyMarketingContractsAssetsCurrent	0	usd
CY2022Q4	us-gaap	Energy Marketing Contracts Assets Current EnergyMarketingContractsAssetsCurrent	11847000	usd
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CY2022Q4	us-gaap	Assets Current AssetsCurrent	151294000	usd
CY2023Q4	us-gaap	Unbilled Receivables Not Billable At Balance Sheet Date UnbilledReceivablesNotBillableAtBalanceSheetDate	4886000	usd
CY2022Q4	us-gaap	Unbilled Receivables Not Billable At Balance Sheet Date UnbilledReceivablesNotBillableAtBalanceSheetDate	6456000	usd
CY2023Q4	awr	Account Receivablefrom Us Government Net Noncurrent AccountReceivablefromUSGovernmentNetNoncurrent	42183000	usd
CY2022Q4	awr	Account Receivablefrom Us Government Net Noncurrent AccountReceivablefromUSGovernmentNetNoncurrent	50482000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	4422000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	5592000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	7982000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	9535000	usd
CY2023Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	25585000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	5694000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	18758000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	13532000	usd
CY2023Q4	awr	Regulatory And Other Assets RegulatoryAndOtherAssets	103816000	usd
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CY2023Q4	us-gaap	Assets Assets	2246122000	usd
CY2022Q4	us-gaap	Assets Assets	2034374000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	776109000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	709549000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	575555000	usd
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CY2023Q4	us-gaap	Notes Payable To Bank Current NotesPayableToBankCurrent	42000000	usd
CY2022Q4	us-gaap	Notes Payable To Bank Current NotesPayableToBankCurrent	255500000	usd
CY2023Q4	us-gaap	Other Notes Payable Current OtherNotesPayableCurrent	353000	usd
CY2022Q4	us-gaap	Other Notes Payable Current OtherNotesPayableCurrent	399000	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	68705000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	84849000	usd
CY2023Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	492000	usd
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	1848000	usd
CY2023Q4	awr	Franchise And Assessment Fees Taxes FranchiseAndAssessmentFeesTaxes	14654000	usd
CY2022Q4	awr	Franchise And Assessment Fees Taxes FranchiseAndAssessmentFeesTaxes	16257000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	14738000	usd
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CY2023Q4	us-gaap	Interest Payable Current InterestPayableCurrent	8607000	usd
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CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1352000	usd
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CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1856000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1856000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1892000	usd
CY2023Q4	us-gaap	Energy Marketing Contract Liabilities Current EnergyMarketingContractLiabilitiesCurrent	2360000	usd
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CY2023Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	11506000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	10996000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	166623000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	396522000	usd
CY2023Q4	us-gaap	Notes Payable To Bank Noncurrent NotesPayableToBankNoncurrent	291500000	usd
CY2022Q4	us-gaap	Notes Payable To Bank Noncurrent NotesPayableToBankNoncurrent	22000000	usd
CY2023Q4	awr	Advances For Construction AdvancesForConstruction	67431000	usd
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CY2023Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	151414000	usd
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CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	161577000	usd
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CY2023Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1222000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	40602000	usd
CY2023Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	1011000	usd
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CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	32652000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	33636000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	6619000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	6619000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	8090000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	14409000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	14400000	usd
CY2023Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	727835000	usd
CY2022Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	481756000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2246122000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2034374000	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	60000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	60000000	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	36980612	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	36962241	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	263179000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	260158000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	512930000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	449391000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	776109000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	709549000	usd
CY2023Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	579047000	usd
CY2022Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	450373000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	353000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	399000	usd
CY2023Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3139000	usd
CY2022Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3427000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	575555000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	446547000	usd
CY2023Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1351664000	usd
CY2022Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1156096000	usd
CY2023	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	433473000	usd
CY2022	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	340602000	usd
CY2021	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	347112000	usd
CY2023	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	41832000	usd
CY2022	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	39986000	usd
CY2021	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	38345000	usd
CY2023	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	120394000	usd
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	110940000	usd
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	113396000	usd
CY2023	us-gaap	Revenues Revenues	595699000	usd
CY2022	us-gaap	Revenues Revenues	491528000	usd
CY2021	us-gaap	Revenues Revenues	498853000	usd
CY2023	awr	Utilities Operating Expense Water Purchased UtilitiesOperatingExpenseWaterPurchased	72864000	usd
CY2022	awr	Utilities Operating Expense Water Purchased UtilitiesOperatingExpenseWaterPurchased	75939000	usd
CY2021	awr	Utilities Operating Expense Water Purchased UtilitiesOperatingExpenseWaterPurchased	77914000	usd
CY2023	awr	Power Purchased For Pumping PowerPurchasedForPumping	12829000	usd
CY2022	awr	Power Purchased For Pumping PowerPurchasedForPumping	11861000	usd
CY2021	awr	Power Purchased For Pumping PowerPurchasedForPumping	11103000	usd
CY2023	awr	Groundwater Production Assessment GroundwaterProductionAssessment	20850000	usd
CY2022	awr	Groundwater Production Assessment GroundwaterProductionAssessment	19071000	usd
CY2021	awr	Groundwater Production Assessment GroundwaterProductionAssessment	19412000	usd
CY2023	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	13275000	usd
CY2022	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	15039000	usd
CY2021	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	11240000	usd
CY2023	awr	Supply Cost Balancing Accounts SupplyCostBalancingAccounts	12118000	usd
CY2022	awr	Supply Cost Balancing Accounts SupplyCostBalancingAccounts	-12000000	usd
CY2021	awr	Supply Cost Balancing Accounts SupplyCostBalancingAccounts	-11421000	usd
CY2023	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	40271000	usd
CY2022	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	38095000	usd
CY2021	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	34738000	usd
CY2023	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	88273000	usd
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	86190000	usd
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	83547000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	42403000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	41315000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	39596000	usd
CY2023	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	14218000	usd
CY2022	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	13392000	usd
CY2021	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	12781000	usd
CY2023	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	24046000	usd
CY2022	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	22894000	usd
CY2021	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	22522000	usd
CY2023	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	57912000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	53171000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	56909000	usd
CY2023	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	100000	usd
CY2022	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	75000	usd
CY2021	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	465000	usd
CY2023	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	398959000	usd
CY2022	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	364892000	usd
CY2021	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	357876000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	196740000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	126636000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	140977000	usd
CY2023	us-gaap	Interest Expense InterestExpense	42762000	usd
CY2022	us-gaap	Interest Expense InterestExpense	27027000	usd
CY2021	us-gaap	Interest Expense InterestExpense	22834000	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	7416000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	2326000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	1493000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	5126000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	125000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	5134000	usd
CY2023	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-30220000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-24576000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-16207000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	166520000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	102060000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	124770000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41599000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23664000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30423000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	124921000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	78396000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	94347000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36976000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.37
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.12
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.55
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37077000	shares
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.36
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.55
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.655
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.525
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.400
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	641673000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	94347000	usd
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1616000	usd
CY2021	awr	Dividends Equivalent Rights On Share Based Compensation Not Paid In Cash Net Of Tax DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax	160000	usd
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	51689000	usd
CY2021	awr	Dividends Equivalent Rights On Share Based Compensation Net Of Tax DividendsEquivalentRightsOnShareBasedCompensationNetOfTax	160000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	685947000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	78396000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1562000	usd
CY2022	awr	Dividends Equivalent Rights On Share Based Compensation Not Paid In Cash Net Of Tax DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax	154000	usd
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	56356000	usd
CY2022	awr	Dividends Equivalent Rights On Share Based Compensation Net Of Tax DividendsEquivalentRightsOnShareBasedCompensationNetOfTax	154000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	709549000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	124921000	usd
CY2023	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2834000	usd
CY2023	awr	Dividends Equivalent Rights On Share Based Compensation Not Paid In Cash Net Of Tax DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax	187000	usd
CY2023	us-gaap	Dividends Common Stock DividendsCommonStock	61195000	usd
CY2023	awr	Dividends Equivalent Rights On Share Based Compensation Net Of Tax DividendsEquivalentRightsOnShareBasedCompensationNetOfTax	187000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	776109000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	124921000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	78396000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	94347000	usd
CY2023	us-gaap	Depreciation And Amortization DepreciationAndAmortization	43254000	usd
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	41697000	usd
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	39974000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	932000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1043000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1119000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	4783000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	2803000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	3561000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	3298000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	2571000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	2566000	usd
CY2023	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	5008000	usd
CY2022	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-5177000	usd
CY2021	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	4287000	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-289000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-38000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	381000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6632000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-5424000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4688000	usd
CY2023	awr	Increase Decrease In Unbilled Contracts Receivables IncreaseDecreaseInUnbilledContractsReceivables	1283000	usd
CY2022	awr	Increase Decrease In Unbilled Contracts Receivables IncreaseDecreaseInUnbilledContractsReceivables	-9699000	usd
CY2021	awr	Increase Decrease In Unbilled Contracts Receivables IncreaseDecreaseInUnbilledContractsReceivables	1037000	usd
CY2023	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	2241000	usd
CY2022	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-2115000	usd
CY2021	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	1422000	usd
CY2023	awr	Increase Decrease Receivable From Government IncreaseDecreaseReceivableFromGovernment	6033000	usd
CY2022	awr	Increase Decrease Receivable From Government IncreaseDecreaseReceivableFromGovernment	5638000	usd
CY2021	awr	Increase Decrease Receivable From Government IncreaseDecreaseReceivableFromGovernment	4713000	usd
CY2023	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	2951000	usd
CY2022	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	2460000	usd
CY2021	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	3544000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1581000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3146000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1323000	usd
CY2023	awr	Increase Decreasein Contract Assets IncreaseDecreaseinContractAssets	-604000	usd
CY2022	awr	Increase Decreasein Contract Assets IncreaseDecreaseinContractAssets	5395000	usd
CY2021	awr	Increase Decreasein Contract Assets IncreaseDecreaseinContractAssets	-235000	usd
CY2023	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	81373000	usd
CY2022	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	18915000	usd
CY2021	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	5842000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-10862000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	11767000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2881000	usd
CY2023	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	2493000	usd
CY2022	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-6479000	usd
CY2021	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-2254000	usd
CY2023	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	449000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	646000	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-1543000	usd
CY2023	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	1046000	usd
CY2022	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-3087000	usd
CY2021	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	3051000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	416000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-4749000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	2000000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	67683000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	117799000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	115584000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	188540000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	166240000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	144515000	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	224000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	862000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	577000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-188764000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-167102000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-145092000	usd
CY2023	awr	Proceeds From Contribution In Aid Of Construction And Repayments Of Advances For Construction ProceedsFromContributionInAidOfConstructionAndRepaymentsOfAdvancesForConstruction	11889000	usd
CY2022	awr	Proceeds From Contribution In Aid Of Construction And Repayments Of Advances For Construction ProceedsFromContributionInAidOfConstructionAndRepaymentsOfAdvancesForConstruction	6901000	usd
CY2021	awr	Proceeds From Contribution In Aid Of Construction And Repayments Of Advances For Construction ProceedsFromContributionInAidOfConstructionAndRepaymentsOfAdvancesForConstruction	12432000	usd
CY2023	awr	Refunds On Advances For Construction RefundsOnAdvancesForConstruction	4540000	usd
CY2022	awr	Refunds On Advances For Construction RefundsOnAdvancesForConstruction	5321000	usd
CY2021	awr	Refunds On Advances For Construction RefundsOnAdvancesForConstruction	4666000	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	334000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	377000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	28356000	usd
CY2023	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	129665000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	34789000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2023	us-gaap	Proceeds From Repayments Of Notes Payable ProceedsFromRepaymentsOfNotesPayable	54590000	usd
CY2022	us-gaap	Proceeds From Repayments Of Notes Payable ProceedsFromRepaymentsOfNotesPayable	72000000	usd
CY2021	us-gaap	Proceeds From Repayments Of Notes Payable ProceedsFromRepaymentsOfNotesPayable	71300000	usd
CY2023	us-gaap	Payments Of Dividends PaymentsOfDividends	61195000	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	56356000	usd
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	51689000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	918000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1299000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1287000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	129157000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	50337000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2266000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	8076000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	1034000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-31774000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	5997000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4963000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36737000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	14073000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	5997000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4963000	usd
CY2023	awr	Number Of Customers NumberOfCustomers	1000000	customer
CY2023Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	10	state
CY2023	awr	Number Of Registrants Filing Combined Report NumberOfRegistrantsFilingCombinedReport	2	registrant
CY2023	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	5000000	usd
CY2022	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	5200000	usd
CY2021	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	5300000	usd
CY2023Q4	us-gaap	Asset Retirement Obligation Legally Restricted Assets Fair Value AssetRetirementObligationLegallyRestrictedAssetsFairValue	0	usd
CY2023Q4	us-gaap	Net Regulatory Assets NetRegulatoryAssets	69507000	usd
CY2022Q4	us-gaap	Net Regulatory Assets NetRegulatoryAssets	-25454000	usd
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2023	awr	Goodwill Acquired In Prior Period GoodwillAcquiredInPriorPeriod	1100000	usd
CY2022	awr	Goodwill Acquired In Prior Period GoodwillAcquiredInPriorPeriod	1100000	usd
CY2023	awr	Goodwill Acquired In Prior Period GoodwillAcquiredInPriorPeriod	1100000	usd
CY2023	awr	Period Of Refund Of Customer Advances For Construction PeriodOfRefundOfCustomerAdvancesForConstruction	P40Y
CY2023Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	556214000	usd
CY2023	awr	Revenue Performance Obligation Payment Terms RevenuePerformanceObligationPaymentTerms	P20D
CY2023	us-gaap	Revenues Revenues	595699000	usd
CY2022	us-gaap	Revenues Revenues	491528000	usd
CY2021	us-gaap	Revenues Revenues	498853000	usd
CY2023	awr	Retroactive Water Revenues Impact As A Result Of A Proposed Decision RetroactiveWaterRevenuesImpactAsAResultOfAProposedDecision	30000000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	4000000000	usd
CY2023Q4	awr	Regulatory Asset Not Accruing Carrying Costs RegulatoryAssetNotAccruingCarryingCosts	68400000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	624472000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	606231000	usd
CY2023Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	237131000	usd
CY2022Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	181648000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1892280000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1753766000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	32345000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	31938000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	27275000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	26811000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5070000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5070000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5127000	usd
CY2023Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	383000	usd
CY2022Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	383000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1100000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	641000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	700000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	911000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	911000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	911000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	911000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	911000	usd
CY2023Q4	awr	Finite Lived Intangible Assets Estimated Future Amortization Expense FiniteLivedIntangibleAssetsEstimatedFutureAmortizationExpense	4555000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	9717000	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	386000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	10103000	usd
CY2023	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	406000	usd
CY2023Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	10509000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	124921000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	78396000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	94347000	usd
CY2023	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	372000	usd
CY2022	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	197000	usd
CY2021	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	244000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	124549000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	78199000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	94103000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36976000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.37
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.12
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.55
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	124549000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	78199000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	94103000	usd
CY2023	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	189000	usd
CY2022	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	55000	usd
CY2021	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	110000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	124738000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	78254000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	94213000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36976000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36955000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36921000	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	101000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	84000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	89000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37077000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37039000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37010000	shares
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.36
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.55
CY2023	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	18371	shares
CY2022	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	25956	shares
CY2021	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	47182	shares
CY2021	awr	Proceedsfrom Stock Options Exercised Distributedto Subsidiaries ProceedsfromStockOptionsExercisedDistributedtoSubsidiaries	0	usd
CY2023	awr	Proceedsfrom Stock Options Exercised Distributedto Subsidiaries ProceedsfromStockOptionsExercisedDistributedtoSubsidiaries	0	usd
CY2022	awr	Proceedsfrom Stock Options Exercised Distributedto Subsidiaries ProceedsfromStockOptionsExercisedDistributedtoSubsidiaries	0	usd
CY2023Q4	awr	Dividend Reinvestment Plan Common Stock Capital Shares Reserved For Future Issuance DividendReinvestmentPlanCommonStockCapitalSharesReservedForFutureIssuance	1055948	shares
CY2023Q4	awr	Defined Contribution Plan Common Stock Capital Shares Reserved For Future Issuance DefinedContributionPlanCommonStockCapitalSharesReservedForFutureIssuance	387300	shares
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	776100000	usd
CY2023Q4	awr	Number Of Credit Facilities NumberOfCreditFacilities	3	unit
CY2023Q2	us-gaap	Debt Instrument Term DebtInstrumentTerm	P5Y
CY2023Q4	awr	Lineof Credit Facility Incremental Expansionof Borrowing Capacity LineofCreditFacilityIncrementalExpansionofBorrowingCapacity	75000000	usd
CY2023Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	165000000	usd
CY2023Q4	awr	Ratioof Indebtednessto Ebitda RatioofIndebtednesstoEBITDA	8
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations Repayments Of Principal In Next Twelve Months LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths	353000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	370000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Three LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree	8116000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	403000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	55421000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal After Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive	514384000	usd
CY2023Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	579047000	usd
CY2023Q4	awr	Deferred Tax Assets Regulatory Assets And Liabilities Related To Itc And Excess Deferred Taxes DeferredTaxAssetsRegulatoryAssetsAndLiabilitiesRelatedToITCAndExcessDeferredTaxes	32042000	usd
CY2022Q4	awr	Deferred Tax Assets Regulatory Assets And Liabilities Related To Itc And Excess Deferred Taxes DeferredTaxAssetsRegulatoryAssetsAndLiabilitiesRelatedToITCAndExcessDeferredTaxes	31330000	usd
CY2023Q4	awr	Deferred Tax Assets Contributions And Advances DeferredTaxAssetsContributionsAndAdvances	6660000	usd
CY2022Q4	awr	Deferred Tax Assets Contributions And Advances DeferredTaxAssetsContributionsAndAdvances	6544000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5924000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7424000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	44626000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	45298000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	161820000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	155955000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	36337000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	30226000	usd
CY2023Q4	awr	Deferred Tax Liabilities Balancing And Memorandum Accounts DeferredTaxLiabilitiesBalancingAndMemorandumAccounts	8046000	usd
CY2022Q4	awr	Deferred Tax Liabilities Balancing And Memorandum Accounts DeferredTaxLiabilitiesBalancingAndMemorandumAccounts	8794000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	206203000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	194975000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	161577000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	149677000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	26327000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	14845000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	19592000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10489000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6016000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7270000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	36816000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	20861000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	26862000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4157000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2991000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2802000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	626000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-188000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	759000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4783000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2803000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3561000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41599000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23664000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30423000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	34969000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	21433000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	26202000	usd
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	9785000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4335000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6425000	usd
CY2023	awr	Incometaxratereconciliationexcessdeferredtaxamortization Incometaxratereconciliationexcessdeferredtaxamortization	1648000	usd
CY2022	awr	Incometaxratereconciliationexcessdeferredtaxamortization Incometaxratereconciliationexcessdeferredtaxamortization	1311000	usd
CY2021	awr	Incometaxratereconciliationexcessdeferredtaxamortization Incometaxratereconciliationexcessdeferredtaxamortization	1356000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	1067000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	1076000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	1069000	usd
CY2023	awr	Income Tax Reconciliation Costof Removal IncomeTaxReconciliationCostofRemoval	2255000	usd
CY2022	awr	Income Tax Reconciliation Costof Removal IncomeTaxReconciliationCostofRemoval	1802000	usd
CY2021	awr	Income Tax Reconciliation Costof Removal IncomeTaxReconciliationCostofRemoval	1962000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	71000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	71000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	71000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-248000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	4000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	116000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41599000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23664000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30423000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	166520000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	102060000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	124770000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.250
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.232
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.244
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023	awr	Defined Benefit Plan Initial Health Care Cost Trend Rate For Employees Under Age Sixty Five DefinedBenefitPlanInitialHealthCareCostTrendRateForEmployeesUnderAgeSixtyFive	0.059
CY2023	awr	Defined Benefit Plan Ultimate Health Care Cost Trend Rate For Employees Under Age Sixty Five DefinedBenefitPlanUltimateHealthCareCostTrendRateForEmployeesUnderAgeSixtyFive	0.040
CY2023	awr	Defined Benefit Plan Initial Health Care Cost Trend Rate For Employees Of Age Sixty Five And Over DefinedBenefitPlanInitialHealthCareCostTrendRateForEmployeesOfAgeSixtyFiveAndOver	0.063
CY2023	awr	Defined Benefit Plan Ultimate Health Care Cost Trend Rate For Employees Of Age Sixty Five And Over DefinedBenefitPlanUltimateHealthCareCostTrendRateForEmployeesOfAgeSixtyFiveAndOver	0.040
CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2900000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2700000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2700000	usd
CY2023	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2200000	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2000000	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1900000	usd
CY2023	awr	Number Of Stock Incentive Plans NumberOfStockIncentivePlans	3	stock_plan
CY2023	awr	Share Based Compensation Arrangementsby Share Based Payment Award Options Minimum Agefor Awardsto Vest Immediately ShareBasedCompensationArrangementsbyShareBasedPaymentAwardOptionsMinimumAgeforAwardstoVestImmediately	P55Y
CY2023	awr	Share Based Compensation Arrangementsby Share Based Payment Award Options Minimum Agefor Awardsto Vest Immediately ShareBasedCompensationArrangementsbyShareBasedPaymentAwardOptionsMinimumAgeforAwardstoVestImmediately	P55Y
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3298000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2571000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2566000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	450000	usd
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CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	198000	usd
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CY2022	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	1569000	usd
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	2300000	usd
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CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	2500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	2161000	usd
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$AWR
AMERICAN STATES WATER CO Stock $awr

2024 Q1 Form 10-K Financial Statement

#000162828024005922 Filed on February 21, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AWR AMERICAN STATES WATER CO Stock $awr

2024 Q1 Form 10-K Financial Statement

#000162828024005922 Filed on February 21, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AWR
AMERICAN STATES WATER CO Stock $awr