10-Q Filing

AMERICAN STATES WATER CO CIK: 1056903 Q3 2023

Filing Information

Form Type	10-Q
Accession Number	`0001628280-23-037070`
Period End Date	20230930
Filing Date	20231106
Fiscal Year	2023
Fiscal Period	Q3
XBRL Instance	awr-20230930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 138 Income Statement 120 Cash Flow Statement 84 Stockholders Equity 55

Balance Sheet 138 line items

Line Item	Tag	Value	Unit	Period
Accounts Receivable, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.14M	USD	Point-in-time
Accounts Receivable, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.39M	USD	Point-in-time
Other accounts receivable, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableOtherCurrent`	$53.00K	USD	Point-in-time
Other accounts receivable, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableOtherCurrent`	$53.00K	USD	Point-in-time
Common Stock, Shares Authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common Stock, Shares Authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common Stock, Shares, Outstanding (in shares)	`CommonStockSharesOutstanding`	36.96M	shares	Point-in-time
Common Stock, Shares, Outstanding (in shares)	`CommonStockSharesOutstanding`	36.98M	shares	Point-in-time
Common Stock, Par Value (in usd per share)	`CommonStockParOrStatedValuePerShare`	-	USD	Point-in-time
Common Stock, Par Value (in usd per share)	`CommonStockParOrStatedValuePerShare`	-	USD	Point-in-time
Regulated utility plant, at cost	`UtilitiesPropertyPlantAndEquipmentGross`	$2.32B	USD	Point-in-time
Regulated utility plant, at cost	`UtilitiesPropertyPlantAndEquipmentGross`	$2.43B	USD	Point-in-time
Non-utility property, at cost	`NonUtilitiesPropertyPlantAndEquipmentGross`	$38.28M	USD	Point-in-time
Non-utility property, at cost	`NonUtilitiesPropertyPlantAndEquipmentGross`	$39.24M	USD	Point-in-time
Total	`PropertyPlantAndEquipmentGross`	$2.36B	USD	Point-in-time
Total	`PropertyPlantAndEquipmentGross`	$2.47B	USD	Point-in-time
Less - Accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$622.65M	USD	Point-in-time
Less - Accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$606.23M	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$1.85B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$1.75B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$1.72B	USD	Point-in-time
Goodwill	`Goodwill`	$1.12M	USD	Point-in-time
Goodwill	`Goodwill`	$1.12M	USD	Point-in-time
Other property and investments	`PropertyPlantAndEquipmentAndInvestmentsOtherNet`	$36.91M	USD	Point-in-time
Other property and investments	`PropertyPlantAndEquipmentAndInvestmentsOtherNet`	$37.77M	USD	Point-in-time
Total other property and investments	`PropertyPlantAndEquipmentAndInvestmentsOtherAndGoodwillNet`	$38.88M	USD	Point-in-time
Total other property and investments	`PropertyPlantAndEquipmentAndInvestmentsOtherAndGoodwillNet`	$38.02M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$6.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$8.60M	USD	Point-in-time
Accounts receivable - customers, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$32.60M	USD	Point-in-time
Accounts receivable - customers, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$26.21M	USD	Point-in-time
Unbilled receivable	`UnbilledContractsReceivable`	$24.25M	USD	Point-in-time
Unbilled receivable	`UnbilledContractsReceivable`	$20.66M	USD	Point-in-time
Receivable from the U.S. government (Note 2)	`AccountsReceivableFromUSGovernmentNetCurrent`	$34.97M	USD	Point-in-time
Receivable from the U.S. government (Note 2)	`AccountsReceivableFromUSGovernmentNetCurrent`	$51.56M	USD	Point-in-time
Other accounts receivable, less allowance for doubtful accounts	`AccountsAndOtherReceivablesNetCurrent`	$4.21M	USD	Point-in-time
Other accounts receivable, less allowance for doubtful accounts	`AccountsAndOtherReceivablesNetCurrent`	$6.75M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$59.00K	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$3.90M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$16.22M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$14.62M	USD	Point-in-time
Regulatory assets current	`RegulatoryAssetsCurrent`	$14.03M	USD	Point-in-time
Regulatory assets current	`RegulatoryAssetsCurrent`	$32.35M	USD	Point-in-time
Prepayments and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$6.53M	USD	Point-in-time
Prepayments and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$5.45M	USD	Point-in-time
Purchase power contract derivative at fair value (Note 5)	`EnergyMarketingContractsAssetsCurrent`	$11.85M	USD	Point-in-time
Purchase power contract derivative at fair value (Note 5)	`EnergyMarketingContractsAssetsCurrent`	$1.52M	USD	Point-in-time
Contract assets (Note 2)	`ContractWithCustomerAssetGrossCurrent`	$9.39M	USD	Point-in-time
Contract assets (Note 2)	`ContractWithCustomerAssetGrossCurrent`	$11.23M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$191.69M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$151.29M	USD	Point-in-time
Unbilled revenue receivable from the U.S. government (Note 2)	`UnbilledContractsReceivableFromUSGovernment`	$6.46M	USD	Point-in-time
Unbilled revenue receivable from the U.S. government (Note 2)	`UnbilledContractsReceivableFromUSGovernment`	$5.85M	USD	Point-in-time
Receivable from the U.S. government (Note 2)	`AccountReceivablefromUSGovernmentNetNoncurrent`	$50.48M	USD	Point-in-time
Receivable from the U.S. government (Note 2)	`AccountReceivablefromUSGovernmentNetNoncurrent`	$44.48M	USD	Point-in-time
Contract assets (Note 2)	`ContractWithCustomerAssetGrossNoncurrent`	$2.78M	USD	Point-in-time
Contract assets (Note 2)	`ContractWithCustomerAssetGrossNoncurrent`	$5.59M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$9.54M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$8.51M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$47.56M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$5.69M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$15.01M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$13.53M	USD	Point-in-time
Total other assets	`RegulatoryAndOtherAssets`	$91.29M	USD	Point-in-time
Total other assets	`RegulatoryAndOtherAssets`	$124.19M	USD	Point-in-time
Total Assets	`Assets`	$2.21B	USD	Point-in-time
Total Assets	`Assets`	$2.03B	USD	Point-in-time
Total Assets	`Assets`	$1.98B	USD	Point-in-time
Common stock, value, issued	`CommonStockValue`	$260.16M	USD	Point-in-time
Common stock, value, issued	`CommonStockValue`	$262.88M	USD	Point-in-time
Earnings reinvested in the business	`RetainedEarningsAccumulatedDeficit`	$508.45M	USD	Point-in-time
Earnings reinvested in the business	`RetainedEarningsAccumulatedDeficit`	$449.39M	USD	Point-in-time
Total common shareholders equity	`StockholdersEquity`	$705.50M	USD	Point-in-time
Total common shareholders equity	`StockholdersEquity`	$730.85M	USD	Point-in-time
Total common shareholders equity	`StockholdersEquity`	$694.23M	USD	Point-in-time
Total common shareholders equity	`StockholdersEquity`	$755.07M	USD	Point-in-time
Total common shareholders equity	`StockholdersEquity`	$685.95M	USD	Point-in-time
Total common shareholders equity	`StockholdersEquity`	$709.55M	USD	Point-in-time
Total common shareholders equity	`StockholdersEquity`	$687.42M	USD	Point-in-time
Total common shareholders equity	`StockholdersEquity`	$771.34M	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$446.55M	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$575.46M	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$1.16B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$1.35B	USD	Point-in-time
Notes payable to banks	`NotesPayableToBankCurrent`	$37.00M	USD	Point-in-time
Notes payable to banks	`NotesPayableToBankCurrent`	$255.50M	USD	Point-in-time
Long-term debt current	`OtherNotesPayableCurrent`	$353.00K	USD	Point-in-time
Long-term debt current	`OtherNotesPayableCurrent`	$399.00K	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$84.85M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$71.83M	USD	Point-in-time
Accrued other taxes	`FranchiseAndAssessmentFeesTaxes`	$17.37M	USD	Point-in-time
Accrued other taxes	`FranchiseAndAssessmentFeesTaxes`	$16.26M	USD	Point-in-time
Accrued employee expenses	`EmployeeRelatedLiabilitiesCurrent`	$14.82M	USD	Point-in-time
Accrued employee expenses	`EmployeeRelatedLiabilitiesCurrent`	$14.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$5.31M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$8.95M	USD	Point-in-time
Income taxes payable	`TaxesPayableCurrent`	$1.85M	USD	Point-in-time
Income taxes payable	`TaxesPayableCurrent`	$28.63M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$4.57M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$2.25M	USD	Point-in-time
Contract liabilities (Note 2)	`ContractWithCustomerLiabilityCurrent`	$596.00K	USD	Point-in-time
Contract liabilities (Note 2)	`ContractWithCustomerLiabilityCurrent`	$903.00K	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$1.91M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$1.89M	USD	Point-in-time
Other	`OtherAccruedLiabilitiesCurrent`	$11.00M	USD	Point-in-time
Other	`OtherAccruedLiabilitiesCurrent`	$11.31M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$396.52M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$195.01M	USD	Point-in-time
Notes payable to banks	`NotesPayableToBankNoncurrent`	$22.00M	USD	Point-in-time
Notes payable to banks	`NotesPayableToBankNoncurrent`	$236.50M	USD	Point-in-time
Advances for construction	`AdvancesForConstruction`	$64.35M	USD	Point-in-time
Advances for construction	`AdvancesForConstruction`	$63.96M	USD	Point-in-time
Contributions in aid of construction - net	`ContributionsInAidConstructionNet`	$149.59M	USD	Point-in-time
Contributions in aid of construction - net	`ContributionsInAidConstructionNet`	$147.92M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$149.68M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$156.44M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$40.60M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	-	USD	Point-in-time
Unamortized investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$1.03M	USD	Point-in-time
Unamortized investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$1.08M	USD	Point-in-time
Accrued pension and other postretirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$34.11M	USD	Point-in-time
Accrued pension and other postretirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$33.64M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$7.09M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$8.09M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$14.71M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$14.40M	USD	Point-in-time
Total other credits	`LiabilitiesOtherThanLongTermDebtRelatedToCapitalizationNoncurrent`	$663.43M	USD	Point-in-time
Total other credits	`LiabilitiesOtherThanLongTermDebtRelatedToCapitalizationNoncurrent`	$481.76M	USD	Point-in-time
Commitments and Contingencies (Note 9)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies (Note 9)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Total Capitalization and Liabilities	`LiabilitiesAndStockholdersEquity`	$2.03B	USD	Point-in-time
Total Capitalization and Liabilities	`LiabilitiesAndStockholdersEquity`	$2.21B	USD	Point-in-time
Common Stock, Par Value (in usd per share)	`CommonStockParOrStatedValuePerShare`	-	USD	Point-in-time
Common Stock, Par Value (in usd per share)	`CommonStockParOrStatedValuePerShare`	-	USD	Point-in-time
Common Stock, Shares Authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common Stock, Shares Authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common Stock, Shares, Outstanding (in shares)	`CommonStockSharesOutstanding`	36.96M	shares	Point-in-time
Common Stock, Shares, Outstanding (in shares)	`CommonStockSharesOutstanding`	36.98M	shares	Point-in-time

Income Statement 120 line items

Line Item	Tag	Value	Unit	Period
Water	`RegulatedOperatingRevenueWater`	$116.23M	USD	1 Quarter
Water	`RegulatedOperatingRevenueWater`	$265.56M	USD	3 Qtrs
Water	`RegulatedOperatingRevenueWater`	$100.80M	USD	1 Quarter
Water	`RegulatedOperatingRevenueWater`	$345.85M	USD	3 Qtrs
Electric	`RegulatedOperatingRevenueElectricNonNuclear`	$29.03M	USD	3 Qtrs
Electric	`RegulatedOperatingRevenueElectricNonNuclear`	$30.69M	USD	3 Qtrs
Electric	`RegulatedOperatingRevenueElectricNonNuclear`	$8.92M	USD	1 Quarter
Electric	`RegulatedOperatingRevenueElectricNonNuclear`	$8.96M	USD	1 Quarter
Contracted services	`RegulatedOperatingRevenueOther`	$25.27M	USD	1 Quarter
Contracted services	`RegulatedOperatingRevenueOther`	$26.51M	USD	1 Quarter
Contracted services	`RegulatedOperatingRevenueOther`	$71.57M	USD	3 Qtrs
Contracted services	`RegulatedOperatingRevenueOther`	$93.98M	USD	3 Qtrs
Total operating revenues	`Revenues`	$366.16M	USD	3 Qtrs
Total operating revenues	`Revenues`	$470.52M	USD	3 Qtrs
Total operating revenues	`Revenues`	$134.98M	USD	1 Quarter
Total operating revenues	`Revenues`	$151.70M	USD	1 Quarter
Water purchased	`CostOfPurchasedWater`	$23.22M	USD	1 Quarter
Water purchased	`CostOfPurchasedWater`	$58.12M	USD	3 Qtrs
Water purchased	`CostOfPurchasedWater`	$55.59M	USD	3 Qtrs
Water purchased	`CostOfPurchasedWater`	$20.30M	USD	1 Quarter
Power purchased for pumping	`PowerPurchasedForPumping`	$4.29M	USD	1 Quarter
Power purchased for pumping	`PowerPurchasedForPumping`	$3.88M	USD	1 Quarter
Power purchased for pumping	`PowerPurchasedForPumping`	$9.18M	USD	3 Qtrs
Power purchased for pumping	`PowerPurchasedForPumping`	$9.51M	USD	3 Qtrs
Groundwater production assessment	`GroundwaterProductionAssessment`	$5.99M	USD	1 Quarter
Groundwater production assessment	`GroundwaterProductionAssessment`	$14.73M	USD	3 Qtrs
Groundwater production assessment	`GroundwaterProductionAssessment`	$5.65M	USD	1 Quarter
Groundwater production assessment	`GroundwaterProductionAssessment`	$15.19M	USD	3 Qtrs
Power purchased for resale	`UtilitiesOperatingExpensePurchasedPower`	$9.84M	USD	3 Qtrs
Power purchased for resale	`UtilitiesOperatingExpensePurchasedPower`	$9.19M	USD	3 Qtrs
Power purchased for resale	`UtilitiesOperatingExpensePurchasedPower`	$2.38M	USD	1 Quarter
Power purchased for resale	`UtilitiesOperatingExpensePurchasedPower`	$2.67M	USD	1 Quarter
Supply cost balancing accounts	`SupplyCostBalancingAccounts`	$-6.16M	USD	3 Qtrs
Supply cost balancing accounts	`SupplyCostBalancingAccounts`	$723.00K	USD	1 Quarter
Supply cost balancing accounts	`SupplyCostBalancingAccounts`	$15.13M	USD	3 Qtrs
Supply cost balancing accounts	`SupplyCostBalancingAccounts`	$640.00K	USD	1 Quarter
Other operation	`OtherCostAndExpenseOperating`	$28.03M	USD	3 Qtrs
Other operation	`OtherCostAndExpenseOperating`	$10.43M	USD	1 Quarter
Other operation	`OtherCostAndExpenseOperating`	$9.70M	USD	1 Quarter
Other operation	`OtherCostAndExpenseOperating`	$30.26M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$21.59M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$66.03M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$20.98M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$65.03M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$30.40M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$10.18M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$31.64M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$10.12M	USD	1 Quarter
Maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$11.03M	USD	3 Qtrs
Maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$3.41M	USD	1 Quarter
Maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$10.12M	USD	3 Qtrs
Maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$4.10M	USD	1 Quarter
Property and other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$17.25M	USD	3 Qtrs
Property and other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$5.94M	USD	1 Quarter
Property and other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$6.03M	USD	1 Quarter
Property and other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$17.88M	USD	3 Qtrs
ASUS construction	`CostofConstruction`	$10.74M	USD	1 Quarter
ASUS construction	`CostofConstruction`	$46.55M	USD	3 Qtrs
ASUS construction	`CostofConstruction`	$11.62M	USD	1 Quarter
ASUS construction	`CostofConstruction`	$31.26M	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$267.14M	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$94.64M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$99.94M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$308.66M	USD	3 Qtrs
Operating Income	`OperatingIncomeLoss`	$99.02M	USD	3 Qtrs
Operating Income	`OperatingIncomeLoss`	$51.75M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$161.86M	USD	3 Qtrs
Operating Income	`OperatingIncomeLoss`	$40.34M	USD	1 Quarter
Interest expense	`InterestExpense`	$31.90M	USD	3 Qtrs
Interest expense	`InterestExpense`	$11.69M	USD	1 Quarter
Interest expense	`InterestExpense`	$19.25M	USD	3 Qtrs
Interest expense	`InterestExpense`	$7.33M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$667.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$1.39M	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$2.12M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$5.79M	USD	3 Qtrs
Other, net	`OtherNonoperatingIncomeExpense`	$-1.07M	USD	1 Quarter
Other, net	`OtherNonoperatingIncomeExpense`	$338.00K	USD	1 Quarter
Other, net	`OtherNonoperatingIncomeExpense`	$-2.37M	USD	3 Qtrs
Other, net	`OtherNonoperatingIncomeExpense`	$2.24M	USD	3 Qtrs
Total other income and expenses, net	`NonoperatingIncomeExpense`	$-23.86M	USD	3 Qtrs
Total other income and expenses, net	`NonoperatingIncomeExpense`	$-10.64M	USD	1 Quarter
Total other income and expenses, net	`NonoperatingIncomeExpense`	$-6.33M	USD	1 Quarter
Total other income and expenses, net	`NonoperatingIncomeExpense`	$-20.23M	USD	3 Qtrs
Income before income tax expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$34.01M	USD	1 Quarter
Income before income tax expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$78.79M	USD	3 Qtrs
Income before income tax expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$41.11M	USD	1 Quarter
Income before income tax expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$138.00M	USD	3 Qtrs
Income tax expense	`IncomeTaxExpenseBenefit`	$8.36M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$19.03M	USD	3 Qtrs
Income tax expense	`IncomeTaxExpenseBenefit`	$9.55M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$33.50M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$104.49M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$25.65M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$34.41M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$14.16M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$31.57M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$59.77M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$38.52M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$19.95M	USD	1 Quarter
Weighted Average Number of Common Shares Outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	36.97M	shares	3 Qtrs
Weighted Average Number of Common Shares Outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	36.95M	shares	3 Qtrs
Weighted Average Number of Common Shares Outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	36.98M	shares	1 Quarter
Weighted Average Number of Common Shares Outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	36.96M	shares	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.85	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$2.82	USD	3 Qtrs
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.69	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$1.61	USD	3 Qtrs
Weighted Average Number of Diluted Shares (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	37.04M	shares	1 Quarter
Weighted Average Number of Diluted Shares (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	37.07M	shares	1 Quarter
Weighted Average Number of Diluted Shares (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	37.06M	shares	3 Qtrs
Weighted Average Number of Diluted Shares (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	37.03M	shares	3 Qtrs
Fully Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.85	USD	1 Quarter
Fully Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.69	USD	1 Quarter
Fully Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$1.61	USD	3 Qtrs
Fully Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$2.82	USD	3 Qtrs
Dividends Declared Per Common Share (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.13	USD	3 Qtrs
Dividends Declared Per Common Share (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.23	USD	3 Qtrs
Dividends Declared Per Common Share (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$0.43	USD	1 Quarter
Dividends Declared Per Common Share (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$0.40	USD	1 Quarter

Cash Flow Statement 84 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$104.49M	USD	3 Qtrs
Net income	`NetIncomeLoss`	$25.65M	USD	1 Quarter
Net income	`NetIncomeLoss`	$34.41M	USD	1 Quarter
Net income	`NetIncomeLoss`	$14.16M	USD	1 Quarter
Net income	`NetIncomeLoss`	$31.57M	USD	1 Quarter
Net income	`NetIncomeLoss`	$59.77M	USD	3 Qtrs
Net income	`NetIncomeLoss`	$38.52M	USD	1 Quarter
Net income	`NetIncomeLoss`	$19.95M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$30.69M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$32.33M	USD	3 Qtrs
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$1.24M	USD	3 Qtrs
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$833.00K	USD	3 Qtrs
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$919.00K	USD	3 Qtrs
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$-1.10M	USD	3 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$3.10M	USD	3 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$2.44M	USD	3 Qtrs
(Gain) loss on investments held in a trust	`UnrealizedGainLossOnInvestments`	$2.08M	USD	3 Qtrs
(Gain) loss on investments held in a trust	`UnrealizedGainLossOnInvestments`	$-6.45M	USD	3 Qtrs
Other net	`OtherNoncashIncomeExpense`	$41.00K	USD	3 Qtrs
Other net	`OtherNoncashIncomeExpense`	$-263.00K	USD	3 Qtrs
Accounts receivable customers	`IncreaseDecreaseInAccountsReceivable`	$1.76M	USD	3 Qtrs
Accounts receivable customers	`IncreaseDecreaseInAccountsReceivable`	$7.63M	USD	3 Qtrs
Unbilled receivable	`IncreaseDecreaseInUnbilledContractsReceivables`	$2.98M	USD	3 Qtrs
Unbilled receivable	`IncreaseDecreaseInUnbilledContractsReceivables`	$-4.39M	USD	3 Qtrs
Other accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$2.54M	USD	3 Qtrs
Other accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-3.18M	USD	3 Qtrs
Receivables from the U.S. government	`IncreaseDecreaseReceivableFromGovernment`	$-5.33M	USD	3 Qtrs
Receivables from the U.S. government	`IncreaseDecreaseReceivableFromGovernment`	$10.59M	USD	3 Qtrs
Materials and supplies	`IncreaseDecreaseInMaterialsAndSupplies`	$1.59M	USD	3 Qtrs
Materials and supplies	`IncreaseDecreaseInMaterialsAndSupplies`	$1.28M	USD	3 Qtrs
Prepayments and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-403.00K	USD	3 Qtrs
Prepayments and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-520.00K	USD	3 Qtrs
Contract assets	`IncreaseDecreaseInContractWithCustomerAsset`	$-974.00K	USD	3 Qtrs
Contract assets	`IncreaseDecreaseInContractWithCustomerAsset`	$3.99M	USD	3 Qtrs
Regulatory assets/liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$86.07M	USD	3 Qtrs
Regulatory assets/liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$14.06M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-575.00K	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-8.11M	USD	3 Qtrs
Income taxes receivable/payable	`IncreaseDecreaseInIncomeTaxes`	$947.00K	USD	3 Qtrs
Income taxes receivable/payable	`IncreaseDecreaseInIncomeTaxes`	$30.62M	USD	3 Qtrs
Contract liabilities	`IncreaseDecreaseInContractWithCustomerLiability`	$996.00K	USD	3 Qtrs
Contract liabilities	`IncreaseDecreaseInContractWithCustomerLiability`	$-307.00K	USD	3 Qtrs
Accrued pension and other postretirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-3.07M	USD	3 Qtrs
Accrued pension and other postretirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$48.00K	USD	3 Qtrs
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-28.00K	USD	3 Qtrs
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$4.35M	USD	3 Qtrs
Net cash provided (used)	`NetCashProvidedByUsedInOperatingActivities`	$89.93M	USD	3 Qtrs
Net cash provided (used)	`NetCashProvidedByUsedInOperatingActivities`	$56.52M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$122.06M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$136.13M	USD	3 Qtrs
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-321.00K	USD	3 Qtrs
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-952.00K	USD	3 Qtrs
Net cash provided (used)	`NetCashProvidedByUsedInInvestingActivities`	$-121.73M	USD	3 Qtrs
Net cash provided (used)	`NetCashProvidedByUsedInInvestingActivities`	$-135.18M	USD	3 Qtrs
Receipt of advances for and contributions in aid of construction	`ProceedsFromAdvancesForConstruction`	$7.21M	USD	3 Qtrs
Receipt of advances for and contributions in aid of construction	`ProceedsFromAdvancesForConstruction`	$5.49M	USD	3 Qtrs
Refunds on advances for construction	`RepaymentsOfAdvancesForConstruction`	$3.84M	USD	3 Qtrs
Refunds on advances for construction	`RepaymentsOfAdvancesForConstruction`	$3.94M	USD	3 Qtrs
Repayments of long-term debt	`RepaymentsOfLongTermDebt`	$377.00K	USD	3 Qtrs
Repayments of long-term debt	`RepaymentsOfLongTermDebt`	$334.00K	USD	3 Qtrs
Proceeds from the issuance of long-term debt, net of issuance costs	`ProceedsFromDebtNetOfIssuanceCosts`	$34.83M	USD	3 Qtrs
Proceeds from the issuance of long-term debt, net of issuance costs	`ProceedsFromDebtNetOfIssuanceCosts`	$129.66M	USD	3 Qtrs
Net changes in notes payable to banks	`IncreaseDecreaseInNotesPayableCurrent`	$-5.22M	USD	3 Qtrs
Net changes in notes payable to banks	`IncreaseDecreaseInNotesPayableCurrent`	$36.00M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividends`	$41.66M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividends`	$45.29M	USD	3 Qtrs
Other financing activities	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$913.00K	USD	3 Qtrs
Other financing activities	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.24M	USD	3 Qtrs
Net cash provided (used)	`NetCashProvidedByUsedInFinancingActivities`	$81.27M	USD	3 Qtrs
Net cash provided (used)	`NetCashProvidedByUsedInFinancingActivities`	$29.10M	USD	3 Qtrs
Net change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$2.61M	USD	3 Qtrs
Net change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-2.71M	USD	3 Qtrs
Cash and cash equivalents, beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.96M	USD	Point-in-time
Cash and cash equivalents, beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$8.60M	USD	Point-in-time
Cash and cash equivalents, beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$6.00M	USD	Point-in-time
Cash and cash equivalents, beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.26M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.96M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$8.60M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$6.00M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.26M	USD	Point-in-time
Accrued payables for investment in utility plant	`CapitalExpendituresIncurredButNotYetPaid`	$35.29M	USD	3 Qtrs
Accrued payables for investment in utility plant	`CapitalExpendituresIncurredButNotYetPaid`	$37.51M	USD	3 Qtrs
Property installed by developers and conveyed	`ContributionOfProperty`	$1.55M	USD	3 Qtrs
Property installed by developers and conveyed	`ContributionOfProperty`	$511.00K	USD	3 Qtrs

Stockholders Equity 55 line items

Line Item	Tag	Value	Unit	Period
Beginning balances	`StockholdersEquity`	$705.50M	USD	Point-in-time
Beginning balances	`StockholdersEquity`	$730.85M	USD	Point-in-time
Beginning balances	`StockholdersEquity`	$694.23M	USD	Point-in-time
Beginning balances	`StockholdersEquity`	$755.07M	USD	Point-in-time
Beginning balances	`StockholdersEquity`	$685.95M	USD	Point-in-time
Beginning balances	`StockholdersEquity`	$709.55M	USD	Point-in-time
Beginning balances	`StockholdersEquity`	$687.42M	USD	Point-in-time
Beginning balances	`StockholdersEquity`	$771.34M	USD	Point-in-time
Net income	`NetIncomeLoss`	$104.49M	USD	3 Qtrs
Net income	`NetIncomeLoss`	$25.65M	USD	1 Quarter
Net income	`NetIncomeLoss`	$34.41M	USD	1 Quarter
Net income	`NetIncomeLoss`	$14.16M	USD	1 Quarter
Net income	`NetIncomeLoss`	$31.57M	USD	1 Quarter
Net income	`NetIncomeLoss`	$59.77M	USD	3 Qtrs
Net income	`NetIncomeLoss`	$38.52M	USD	1 Quarter
Net income	`NetIncomeLoss`	$19.95M	USD	1 Quarter
Issuances of Common Shares under stock-based compensation plans (in shares)	`StockIssuedDuringPeriodSharesNewIssues`	24,612.00	shares	3 Qtrs
Issuances of Common Shares under stock-based compensation plans (in shares)	`StockIssuedDuringPeriodSharesNewIssues`	18,351.00	shares	3 Qtrs
Issuances of Common Shares under stock-based compensation plans	`StockIssuedDuringPeriodValueStockOptionsExercised`	-	USD	1 Quarter
Issuances of Common Shares under stock-based compensation plans	`StockIssuedDuringPeriodValueStockOptionsExercised`	-	USD	1 Quarter
Issuances of Common Shares under stock-based compensation plans	`StockIssuedDuringPeriodValueStockOptionsExercised`	-	USD	1 Quarter
Issuances of Common Shares under stock-based compensation plans	`StockIssuedDuringPeriodValueStockOptionsExercised`	-	USD	1 Quarter
Issuances of Common Shares under stock-based compensation plans	`StockIssuedDuringPeriodValueStockOptionsExercised`	-	USD	1 Quarter
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition`	$801.00K	USD	1 Quarter
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition`	$396.00K	USD	1 Quarter
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition`	$606.00K	USD	1 Quarter
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition`	$1.59M	USD	1 Quarter
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition`	$315.00K	USD	1 Quarter
Stock-based compensation, net of taxes paid from shares withheld from employees related to net share settlements (Note 4)	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition`	$338.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$34.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$47.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$42.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$41.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$40.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$48.00K	USD	1 Quarter
Dividends on Common Shares	`DividendsCommonStock`	$14.69M	USD	1 Quarter
Dividends on Common Shares	`DividendsCommonStock`	$15.90M	USD	1 Quarter
Dividends on Common Shares	`DividendsCommonStock`	$14.70M	USD	1 Quarter
Dividends on Common Shares	`DividendsCommonStock`	$13.49M	USD	1 Quarter
Dividends on Common Shares	`DividendsCommonStock`	$13.48M	USD	1 Quarter
Dividends on Common Shares	`DividendsCommonStock`	$14.70M	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$47.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$48.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$40.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$41.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$42.00K	USD	1 Quarter
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$34.00K	USD	1 Quarter
Ending balances	`StockholdersEquity`	$705.50M	USD	Point-in-time
Ending balances	`StockholdersEquity`	$730.85M	USD	Point-in-time
Ending balances	`StockholdersEquity`	$694.23M	USD	Point-in-time
Ending balances	`StockholdersEquity`	$755.07M	USD	Point-in-time
Ending balances	`StockholdersEquity`	$685.95M	USD	Point-in-time
Ending balances	`StockholdersEquity`	$709.55M	USD	Point-in-time
Ending balances	`StockholdersEquity`	$687.42M	USD	Point-in-time
Ending balances	`StockholdersEquity`	$771.34M	USD	Point-in-time

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.