10-K Filing

AMERICAN STATES WATER CO CIK: 1056903 FY 2018

Filing Information

Form Type	10-K
Accession Number	`0001056903-19-000004`
Period End Date	20181231
Filing Date	20190225
Fiscal Year	2018
Fiscal Period	FY
XBRL Instance	awr-20181231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 114 Income Statement 130 Cash Flow Statement 124 Stockholders Equity 38

Balance Sheet 114 line items

Line Item	Tag	Value	Unit	Period
Water	`UtilitiesWaterPropertyPlantAndEquipmentGross`	$1.65B	USD	Point-in-time
Water	`UtilitiesWaterPropertyPlantAndEquipmentGross`	$1.56B	USD	Point-in-time
Electric	`UtilitiesElectricPropertyPlantAndEquipmentGross`	$99.73M	USD	Point-in-time
Electric	`UtilitiesElectricPropertyPlantAndEquipmentGross`	$106.06M	USD	Point-in-time
Total	`UtilitiesPropertyPlantAndEquipmentGross`	$1.76B	USD	Point-in-time
Total	`UtilitiesPropertyPlantAndEquipmentGross`	$1.66B	USD	Point-in-time
Non-regulated utility property, at cost	`NonUtilitiesPropertyPlantAndEquipmentGross`	$15.59M	USD	Point-in-time
Non-regulated utility property, at cost	`NonUtilitiesPropertyPlantAndEquipmentGross`	$24.51M	USD	Point-in-time
Total utility plant, at cost	`PropertyPlantAndEquipmentGross`	$1.67B	USD	Point-in-time
Total utility plant, at cost	`PropertyPlantAndEquipmentGross`	$1.78B	USD	Point-in-time
Less accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$561.86M	USD	Point-in-time
Less accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$533.37M	USD	Point-in-time
Utility plant before construction work in progress	`PropertyPlantAndEquipmentBeforeConstructionWorkInProgress`	$1.22B	USD	Point-in-time
Utility plant before construction work in progress	`PropertyPlantAndEquipmentBeforeConstructionWorkInProgress`	$1.14B	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$63.84M	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$78.06M	USD	Point-in-time
Net utility plant	`PropertyPlantAndEquipmentNet`	$1.30B	USD	Point-in-time
Net utility plant	`PropertyPlantAndEquipmentNet`	$1.20B	USD	Point-in-time
Net utility plant	`PropertyPlantAndEquipmentNet`	$1.15B	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`	$24.07M	USD	Point-in-time
Other property and investments	`PropertyPlantAndEquipmentAndInvestmentsOtherNet`	$25.36M	USD	Point-in-time
Total other property and investments	`PropertyPlantAndEquipmentAndInvestmentsOtherAndGoodwillNet`	$26.47M	USD	Point-in-time
Total other property and investments	`PropertyPlantAndEquipmentAndInvestmentsOtherAndGoodwillNet`	$25.19M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$7.14M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$436.00K	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$214.00K	USD	Point-in-time
Accounts receivable customers, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$26.13M	USD	Point-in-time
Accounts receivable customers, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$23.39M	USD	Point-in-time
Unbilled revenue receivable	`UnbilledReceivablesCurrent`	$23.59M	USD	Point-in-time
Unbilled revenue receivable	`UnbilledReceivablesCurrent`	$26.41M	USD	Point-in-time
Receivable from U.S. government, less allowance for doubtful accounts	`AccountsReceivableFromUSGovernmentNetCurrent`	$21.54M	USD	Point-in-time
Receivable from U.S. government, less allowance for doubtful accounts	`AccountsReceivableFromUSGovernmentNetCurrent`	$3.73M	USD	Point-in-time
Other accounts receivable, less allowance for doubtful accounts	`AccountsAndOtherReceivablesNetCurrent`	$8.25M	USD	Point-in-time
Other accounts receivable, less allowance for doubtful accounts	`AccountsAndOtherReceivablesNetCurrent`	$3.10M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$4.74M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$2.16M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$4.79M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$5.78M	USD	Point-in-time
Regulatory assets current	`RegulatoryAssetsCurrent`	$16.53M	USD	Point-in-time
Regulatory assets current	`RegulatoryAssetsCurrent`	$34.22M	USD	Point-in-time
Prepayments and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$5.60M	USD	Point-in-time
Prepayments and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$6.06M	USD	Point-in-time
Contract assets (Note 2)	`ContractWithCustomerAssetGrossCurrent`	-	USD	Point-in-time
Contract assets (Note 2)	`ContractWithCustomerAssetGrossCurrent`	$22.17M	USD	Point-in-time
Costs and estimated earnings in excess of billings on contracts (Note 2)	`CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear`	$41.39M	USD	Point-in-time
Costs and estimated earnings in excess of billings on contracts (Note 2)	`CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear`	-	USD	Point-in-time
Total current assets	`AssetsCurrent`	$155.46M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$131.47M	USD	Point-in-time
Receivable from the U.S. government (Note 2)	`AccountReceivablefromUSGovernmentNetNoncurrent`	-	USD	Point-in-time
Receivable from the U.S. government (Note 2)	`AccountReceivablefromUSGovernmentNetNoncurrent`	$39.58M	USD	Point-in-time
Contract assets (Note 2)	`ContractWithCustomerAssetGrossNoncurrent`	-	USD	Point-in-time
Contract assets (Note 2)	`ContractWithCustomerAssetGrossNoncurrent`	$2.28M	USD	Point-in-time
Costs and estimated earnings in excess of billings on contracts (Note 2)	`CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedAfterOneYear`	$25.43M	USD	Point-in-time
Costs and estimated earnings in excess of billings on contracts (Note 2)	`CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedAfterOneYear`	-	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$5.32M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$5.67M	USD	Point-in-time
Total other assets	`RegulatoryAndOtherAssets`	$47.18M	USD	Point-in-time
Total other assets	`RegulatoryAndOtherAssets`	$31.09M	USD	Point-in-time
Total Assets	`Assets`	$1.42B	USD	Point-in-time
Total Assets	`Assets`	$1.50B	USD	Point-in-time
Common shareholders equity	`StockholdersEquity`	$529.95M	USD	Point-in-time
Common shareholders equity	`StockholdersEquity`	$558.22M	USD	Point-in-time
Common shareholders equity	`StockholdersEquity`	$465.94M	USD	Point-in-time
Common shareholders equity	`StockholdersEquity`	$494.30M	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$281.09M	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$321.04M	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$839.31M	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$850.98M	USD	Point-in-time
Notes payable to banks	`NotesPayableToBankCurrent`	$59.00M	USD	Point-in-time
Notes payable to banks	`NotesPayableToBankCurrent`	-	USD	Point-in-time
Long-term debt current	`LongTermDebtCurrent`	$324.00K	USD	Point-in-time
Long-term debt current	`LongTermDebtCurrent`	$40.32M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$59.53M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$50.98M	USD	Point-in-time
Income taxes payable	`TaxesPayableCurrent`	$360.00K	USD	Point-in-time
Income taxes payable	`TaxesPayableCurrent`	$225.00K	USD	Point-in-time
Accrued other taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$10.09M	USD	Point-in-time
Accrued other taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$7.34M	USD	Point-in-time
Accrued employee expenses	`EmployeeRelatedLiabilitiesCurrent`	$13.84M	USD	Point-in-time
Accrued employee expenses	`EmployeeRelatedLiabilitiesCurrent`	$12.97M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$3.86M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$3.87M	USD	Point-in-time
Unrealized loss on purchased power contracts	`Unrealizedlossonpurchasedpowercontracts`	$2.94M	USD	Point-in-time
Unrealized loss on purchased power contracts	`Unrealizedlossonpurchasedpowercontracts`	$311.00K	USD	Point-in-time
Contract liabilities (Note 2)	`BillingsInExcessOfCostCurrent`	$7.53M	USD	Point-in-time
Contract liabilities (Note 2)	`BillingsInExcessOfCostCurrent`	$3.91M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$15.11M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$10.73M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$146.59M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$156.66M	USD	Point-in-time
Notes payable to banks	`NotesPayableToBankNoncurrent`	-	USD	Point-in-time
Notes payable to banks	`NotesPayableToBankNoncurrent`	$95.50M	USD	Point-in-time
Advances for construction	`CustomerAdvancesForConstruction`	$66.31M	USD	Point-in-time
Advances for construction	`CustomerAdvancesForConstruction`	$67.47M	USD	Point-in-time
Contributions in aid of construction net	`ContributionsInAidOfConstruction`	$123.60M	USD	Point-in-time
Contributions in aid of construction net	`ContributionsInAidOfConstruction`	$124.39M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$115.70M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$114.22M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$44.87M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$32.18M	USD	Point-in-time
Unamortized investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$1.37M	USD	Point-in-time
Unamortized investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$1.44M	USD	Point-in-time
Accrued pension and other post-retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$57.70M	USD	Point-in-time
Accrued pension and other post-retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$57.64M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$11.26M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$11.01M	USD	Point-in-time
Total other credits	`LiabilitiesNoncurrent`	$409.09M	USD	Point-in-time
Total other credits	`LiabilitiesNoncurrent`	$515.54M	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Total Capitalization and Liabilities	`LiabilitiesAndStockholdersEquity`	$1.50B	USD	Point-in-time
Total Capitalization and Liabilities	`LiabilitiesAndStockholdersEquity`	$1.42B	USD	Point-in-time

Income Statement 130 line items

Line Item	Tag	Value	Unit	Period
Water	`RegulatedOperatingRevenueWater`	$295.26M	USD	Annual
Water	`RegulatedOperatingRevenueWater`	$302.93M	USD	Annual
Water	`RegulatedOperatingRevenueWater`	$306.33M	USD	Annual
Electric	`ElectricDomesticRegulatedRevenue`	$35.77M	USD	Annual
Electric	`ElectricDomesticRegulatedRevenue`	$33.97M	USD	Annual
Electric	`ElectricDomesticRegulatedRevenue`	$34.35M	USD	Annual
Contracted services	`ContractsRevenue`	$100.30M	USD	Annual
Contracted services	`ContractsRevenue`	$107.21M	USD	Annual
Contracted services	`ContractsRevenue`	$97.39M	USD	Annual
Total operating revenues	`SalesRevenueNet`	$124.42M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$436.09M	USD	Annual
Total operating revenues	`SalesRevenueNet`	$94.73M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$440.60M	USD	Annual
Total operating revenues	`SalesRevenueNet`	$113.19M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$111.00M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$106.90M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$98.81M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$124.18M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$104.18M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$436.82M	USD	Annual
Water purchased	`CostOfPurchasedWater`	$68.30M	USD	Annual
Water purchased	`CostOfPurchasedWater`	$64.44M	USD	Annual
Water purchased	`CostOfPurchasedWater`	$68.90M	USD	Annual
Power purchased for pumping	`PowerPurchasedForPumping`	$8.97M	USD	Annual
Power purchased for pumping	`PowerPurchasedForPumping`	$8.66M	USD	Annual
Power purchased for pumping	`PowerPurchasedForPumping`	$8.52M	USD	Annual
Groundwater production assessment	`GroundwaterProductionAssessment`	$14.99M	USD	Annual
Groundwater production assessment	`GroundwaterProductionAssessment`	$18.64M	USD	Annual
Groundwater production assessment	`GroundwaterProductionAssessment`	$19.44M	USD	Annual
Power purchased for resale	`CostOfPurchasedPower`	$11.59M	USD	Annual
Power purchased for resale	`CostOfPurchasedPower`	$10.72M	USD	Annual
Power purchased for resale	`CostOfPurchasedPower`	$10.39M	USD	Annual
Supply cost balancing accounts	`SupplyCostBalancingAccounts`	$-17.94M	USD	Annual
Supply cost balancing accounts	`SupplyCostBalancingAccounts`	$-12.21M	USD	Annual
Supply cost balancing accounts	`SupplyCostBalancingAccounts`	$-15.65M	USD	Annual
Other operation	`OtherCostAndExpenseOperating`	$29.99M	USD	Annual
Other operation	`OtherCostAndExpenseOperating`	$31.65M	USD	Annual
Other operation	`OtherCostAndExpenseOperating`	$28.26M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$81.52M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$81.64M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$82.59M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$39.03M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$38.85M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$40.42M	USD	Annual
Maintenance	`CostOfPropertyRepairsAndMaintenance`	$15.18M	USD	Annual
Maintenance	`CostOfPropertyRepairsAndMaintenance`	$15.68M	USD	Annual
Maintenance	`CostOfPropertyRepairsAndMaintenance`	$16.47M	USD	Annual
Property and other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$18.40M	USD	Annual
Property and other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$17.91M	USD	Annual
Property and other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$16.80M	USD	Annual
ASUS construction	`ConstructionAndDevelopmentCosts`	$53.72M	USD	Annual
ASUS construction	`ConstructionAndDevelopmentCosts`	$53.91M	USD	Annual
ASUS construction	`ConstructionAndDevelopmentCosts`	$49.84M	USD	Annual
Gain on sale of assets	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$8.32M	USD	Annual
Gain on sale of assets	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$85.00K	USD	Annual
Gain on sale of assets	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	-	USD	Annual
Total operating expenses	`OperatingExpenses`	$313.51M	USD	Annual
Total operating expenses	`OperatingExpenses`	$321.89M	USD	Annual
Total operating expenses	`OperatingExpenses`	$335.83M	USD	Annual
Operating Income	`OperatingIncomeLoss`	$22.75M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$25.57M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$38.53M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$21.96M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$33.98M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$42.03M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$114.19M	USD	Annual
Operating Income	`OperatingIncomeLoss`	$24.58M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$100.98M	USD	Annual
Operating Income	`OperatingIncomeLoss`	$127.09M	USD	Annual
Operating Income	`OperatingIncomeLoss`	$18.69M	USD	1 Quarter
Interest expense	`InterestExpense`	$23.43M	USD	Annual
Interest expense	`InterestExpense`	$21.99M	USD	Annual
Interest expense	`InterestExpense`	$22.58M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$1.79M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$3.58M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$757.00K	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$1.52M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$2.04M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$760.00K	USD	Annual
Total other income and expenses	`NonoperatingIncomeExpense`	$-19.09M	USD	Annual
Total other income and expenses	`NonoperatingIncomeExpense`	$-19.71M	USD	Annual
Total other income and expenses	`NonoperatingIncomeExpense`	$-18.75M	USD	Annual
Income before income tax expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$108.34M	USD	Annual
Income before income tax expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$81.89M	USD	Annual
Income before income tax expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$94.48M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$34.73M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$18.02M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$38.97M	USD	Annual
Net Income	`NetIncomeLoss`	$63.87M	USD	Annual
Net Income	`NetIncomeLoss`	$22.79M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$22.95M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$10.78M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$16.35M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$12.87M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$59.74M	USD	Annual
Net Income	`NetIncomeLoss`	$69.37M	USD	Annual
Net Income	`NetIncomeLoss`	$13.79M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$12.70M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$21.01M	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$0.62	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$0.35	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$0.44	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$0.57	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$0.37	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$0.29	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$0.62	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$1.63	USD	Annual
Earnings Per Share, Basic	`EarningsPerShareBasic`	$0.35	USD	1 Quarter
Earnings Per Share, Basic	`EarningsPerShareBasic`	$1.73	USD	Annual
Earnings Per Share, Basic	`EarningsPerShareBasic`	$1.88	USD	Annual
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$0.34	USD	1 Quarter
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$1.88	USD	Annual
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$0.37	USD	1 Quarter
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$0.62	USD	1 Quarter
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$0.44	USD	1 Quarter
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$1.72	USD	Annual
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$0.62	USD	1 Quarter
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$0.29	USD	1 Quarter
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$1.62	USD	Annual
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$0.35	USD	1 Quarter
Earnings Per Share, Diluted	`EarningsPerShareDiluted`	$0.57	USD	1 Quarter
Weighted Average Number of Shares Outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	36.55M	shares	Annual
Weighted Average Number of Shares Outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	36.64M	shares	Annual
Weighted Average Number of Shares Outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	36.73M	shares	Annual
Weighted Average Number of Diluted Shares (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	36.84M	shares	Annual
Weighted Average Number of Diluted Shares (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	36.94M	shares	Annual
Weighted Average Number of Diluted Shares (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	36.75M	shares	Annual
Dividends Declared Per Common Share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.99	USD	Annual
Dividends Declared Per Common Share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.91	USD	Annual
Dividends Declared Per Common Share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.06	USD	Annual

Cash Flow Statement 124 line items

Line Item	Tag	Value	Unit	Period
Net Income	`NetIncomeLoss`	$63.87M	USD	Annual
Net Income	`NetIncomeLoss`	$22.79M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$22.95M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$10.78M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$16.35M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$12.87M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$59.74M	USD	Annual
Net Income	`NetIncomeLoss`	$69.37M	USD	Annual
Net Income	`NetIncomeLoss`	$13.79M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$12.70M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$21.01M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$39.11M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$40.66M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$39.27M	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$989.00K	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$619.00K	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$841.00K	USD	Annual
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$27.64M	USD	Annual
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$12.15M	USD	Annual
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$-5.77M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$2.54M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$3.85M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$2.88M	USD	Annual
Gain on sale of assets	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$8.32M	USD	Annual
Gain on sale of assets	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$85.00K	USD	Annual
Gain on sale of assets	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	-	USD	Annual
Other - net	`OtherNoncashIncomeExpense`	$1.52M	USD	Annual
Other - net	`OtherNoncashIncomeExpense`	$-655.00K	USD	Annual
Other - net	`OtherNoncashIncomeExpense`	$397.00K	USD	Annual
Accounts receivable - customers	`IncreaseDecreaseInAccountsReceivable`	$1.75M	USD	Annual
Accounts receivable - customers	`IncreaseDecreaseInAccountsReceivable`	$-1.88M	USD	Annual
Accounts receivable - customers	`IncreaseDecreaseInAccountsReceivable`	$7.67M	USD	Annual
Unbilled revenue-receivable	`IncreaseDecreaseInUnbilledReceivables`	$4.90M	USD	Annual
Unbilled revenue-receivable	`IncreaseDecreaseInUnbilledReceivables`	$2.02M	USD	Annual
Unbilled revenue-receivable	`IncreaseDecreaseInUnbilledReceivables`	$-2.82M	USD	Annual
Other accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$1.23M	USD	Annual
Other accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$1.67M	USD	Annual
Other accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-5.15M	USD	Annual
Receivable from the U.S. government	`IncreaseDecreaseReceivableFromGovernment`	$2.61M	USD	Annual
Receivable from the U.S. government	`IncreaseDecreaseReceivableFromGovernment`	$20.98M	USD	Annual
Receivable from the U.S. government	`IncreaseDecreaseReceivableFromGovernment`	$-4.74M	USD	Annual
Materials and supplies	`IncreaseDecreaseInMaterialsAndSupplies`	$-1.12M	USD	Annual
Materials and supplies	`IncreaseDecreaseInMaterialsAndSupplies`	$501.00K	USD	Annual
Materials and supplies	`IncreaseDecreaseInMaterialsAndSupplies`	$980.00K	USD	Annual
Prepayments and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$1.64M	USD	Annual
Prepayments and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-2.24M	USD	Annual
Prepayments and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$519.00K	USD	Annual
Contract Assets	`IncreaseDecreaseinContractAssets`	$-5.94M	USD	Annual
Contract Assets	`IncreaseDecreaseinContractAssets`	-	USD	Annual
Contract Assets	`IncreaseDecreaseinContractAssets`	-	USD	Annual
Costs and estimated earnings in excess of billings on contracts	`IncreaseDecreaseInCostsInExcessOfBillingsOnUncompletedContractsOrPrograms`	-	USD	Annual
Costs and estimated earnings in excess of billings on contracts	`IncreaseDecreaseInCostsInExcessOfBillingsOnUncompletedContractsOrPrograms`	$10.43M	USD	Annual
Costs and estimated earnings in excess of billings on contracts	`IncreaseDecreaseInCostsInExcessOfBillingsOnUncompletedContractsOrPrograms`	$2.88M	USD	Annual
Regulatory Assets / Liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-33.83M	USD	Annual
Regulatory Assets / Liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$5.61M	USD	Annual
Regulatory Assets / Liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-24.63M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$1.28M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-3.44M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$4.36M	USD	Annual
Income taxes receivable / payable	`IncreaseDecreaseInIncomeTaxes`	$2.71M	USD	Annual
Income taxes receivable / payable	`IncreaseDecreaseInIncomeTaxes`	$13.21M	USD	Annual
Income taxes receivable / payable	`IncreaseDecreaseInIncomeTaxes`	$-6.99M	USD	Annual
Accrued pension and other post-retirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-878.00K	USD	Annual
Accrued pension and other post-retirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-289.00K	USD	Annual
Accrued pension and other post-retirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-1.09M	USD	Annual
Contract liabilities/Billing in Excess of Cost of Earnings	`IncreaseDecreaseInBillingInExcessOfCostOfEarnings`	$3.62M	USD	Annual
Contract liabilities/Billing in Excess of Cost of Earnings	`IncreaseDecreaseInBillingInExcessOfCostOfEarnings`	$1.65M	USD	Annual
Contract liabilities/Billing in Excess of Cost of Earnings	`IncreaseDecreaseInBillingInExcessOfCostOfEarnings`	$-1.50M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-1.59M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-928.00K	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$3.10M	USD	Annual
Net Cash Provided by (Used in) Operating Activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$136.77M	USD	Annual
Net Cash Provided by (Used in) Operating Activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$96.95M	USD	Annual
Net Cash Provided by (Used in) Operating Activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$144.55M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$129.87M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$126.56M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$113.13M	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$72.00K	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfPropertyPlantAndEquipment`	-	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$34.32M	USD	Annual
Other investments	`PaymentsToAcquireInvestments`	$1.35M	USD	Annual
Other investments	`PaymentsToAcquireInvestments`	$1.23M	USD	Annual
Other investments	`PaymentsToAcquireInvestments`	$1.55M	USD	Annual
Net Cash Provided by (Used in) Investing Activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-131.22M	USD	Annual
Net Cash Provided by (Used in) Investing Activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-80.03M	USD	Annual
Net Cash Provided by (Used in) Investing Activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-128.04M	USD	Annual
Proceeds from stock option exercises	`ProceedsFromIssuanceOfCommonSharesAndStockOptionExercises`	$909.00K	USD	Annual
Proceeds from stock option exercises	`ProceedsFromIssuanceOfCommonSharesAndStockOptionExercises`	$235.00K	USD	Annual
Proceeds from stock option exercises	`ProceedsFromIssuanceOfCommonSharesAndStockOptionExercises`	$546.00K	USD	Annual
Tax benefits from stock-based awards	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$581.00K	USD	Annual
Tax benefits from stock-based awards	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	-	USD	Annual
Tax benefits from stock-based awards	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	-	USD	Annual
Receipt of advances for and contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$6.66M	USD	Annual
Receipt of advances for and contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$5.55M	USD	Annual
Receipt of advances for and contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$7.28M	USD	Annual
Refunds on advances for construction	`RepaymentsOfAdvancesForConstruction`	$3.89M	USD	Annual
Refunds on advances for construction	`RepaymentsOfAdvancesForConstruction`	$3.92M	USD	Annual
Refunds on advances for construction	`RepaymentsOfAdvancesForConstruction`	$3.89M	USD	Annual
Retirement or repayments of long-term debt	`RepaymentsOfLongTermDebt`	$326.00K	USD	Annual
Retirement or repayments of long-term debt	`RepaymentsOfLongTermDebt`	$313.00K	USD	Annual
Retirement or repayments of long-term debt	`RepaymentsOfLongTermDebt`	$329.00K	USD	Annual
Net change in notes payable to banks	`PaymentsForProceedsFromNotesPayableToBank`	$-36.50M	USD	Annual
Net change in notes payable to banks	`PaymentsForProceedsFromNotesPayableToBank`	$31.00M	USD	Annual
Net change in notes payable to banks	`PaymentsForProceedsFromNotesPayableToBank`	$-62.00M	USD	Annual
Dividends paid	`PaymentsOfDividends`	$33.41M	USD	Annual
Dividends paid	`PaymentsOfDividends`	$38.94M	USD	Annual
Dividends paid	`PaymentsOfDividends`	$36.42M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.29M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.49M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.25M	USD	Annual
Net Cash Provided by (Used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-64.74M	USD	Annual
Net Cash Provided by (Used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-1.80M	USD	Annual
Net Cash Provided by (Used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$30.34M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-3.93M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$6.93M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-222.00K	USD	Annual
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$7.14M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$214.00K	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$4.36M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$436.00K	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$7.14M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$214.00K	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$4.36M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations`	$436.00K	USD	Point-in-time

Stockholders Equity 38 line items

Line Item	Tag	Value	Unit	Period
Balances	`StockholdersEquity`	$529.95M	USD	Point-in-time
Balances	`StockholdersEquity`	$558.22M	USD	Point-in-time
Balances	`StockholdersEquity`	$465.94M	USD	Point-in-time
Balances	`StockholdersEquity`	$494.30M	USD	Point-in-time
Net Income	`NetIncomeLoss`	$63.87M	USD	Annual
Net Income	`NetIncomeLoss`	$22.79M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$22.95M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$10.78M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$16.35M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$12.87M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$59.74M	USD	Annual
Net Income	`NetIncomeLoss`	$69.37M	USD	Annual
Net Income	`NetIncomeLoss`	$13.79M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$12.70M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$21.01M	USD	1 Quarter
Exercise of stock options and other issuance of Common Shares	`StockIssuedDuringPeriodValueStockOptionsExercised`	$546.00K	USD	Annual
Exercise of stock options and other issuance of Common Shares	`StockIssuedDuringPeriodValueStockOptionsExercised`	$909.00K	USD	Annual
Exercise of stock options and other issuance of Common Shares	`StockIssuedDuringPeriodValueStockOptionsExercised`	$235.00K	USD	Annual
Issuance of Common Shares (in shares)	`StockIssuedDuringPeriodSharesNewIssues`	44,906.00	shares	Annual
Issuance of Common Shares (in shares)	`StockIssuedDuringPeriodSharesNewIssues`	56,900.00	shares	Annual
Issuance of Common Shares (in shares)	`StockIssuedDuringPeriodSharesNewIssues`	56,498.00	shares	Annual
Tax benefit from employee stock-based awards	`AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation`	$581.00K	USD	Annual
Compensation on stock-based awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.79M	USD	Annual
Compensation on stock-based awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.20M	USD	Annual
Compensation on stock-based awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.80M	USD	Annual
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$194.00K	USD	Annual
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$193.00K	USD	Annual
Dividend equivalent rights on stock-based awards not paid in cash	`DividendsEquivalentRightsOnShareBasedCompensationNotPaidInCashNetOfTax`	$221.00K	USD	Annual
Dividends on Common Shares	`DividendsCommonStock`	$38.94M	USD	Annual
Dividends on Common Shares	`DividendsCommonStock`	$33.41M	USD	Annual
Dividends on Common Shares	`DividendsCommonStock`	$36.42M	USD	Annual
Dividend equivalent rights on stock-based awards	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$194.00K	USD	Annual
Dividend equivalent rights on stock-based awards	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$221.00K	USD	Annual
Dividend equivalent rights on stock-based awards	`DividendsEquivalentRightsOnShareBasedCompensationNetOfTax`	$193.00K	USD	Annual
Balances	`StockholdersEquity`	$529.95M	USD	Point-in-time
Balances	`StockholdersEquity`	$558.22M	USD	Point-in-time
Balances	`StockholdersEquity`	$465.94M	USD	Point-in-time
Balances	`StockholdersEquity`	$494.30M	USD	Point-in-time

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