10-K Filing

CALIFORNIA WATER SERVICE GROUP CIK: 1035201 FY 2021

Filing Information

Form Type	10-K
Accession Number	`0001035201-22-000002`
Period End Date	20211231
Filing Date	20220224
Fiscal Year	2021
Fiscal Period	FY
XBRL Instance	cwt-20211231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 95 Income Statement 87 Cash Flow Statement 125 Stockholders Equity 25

Balance Sheet 95 line items

Line Item	Tag	Value	Unit	Period
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	68.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	68.00M	shares	Point-in-time
Land	`PublicUtilitiesPropertyPlantAndEquipmentLand`	$45.67M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	50.33M	shares	Point-in-time
Land	`PublicUtilitiesPropertyPlantAndEquipmentLand`	$45.05M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	53.72M	shares	Point-in-time
Depreciable plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentEquipment`	$3.90B	USD	Point-in-time
Depreciable plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentEquipment`	$3.65B	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$222.71M	USD	Point-in-time
Construction work in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$171.41M	USD	Point-in-time
Intangible assets	`PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment`	$27.57M	USD	Point-in-time
Intangible assets	`PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment`	$29.95M	USD	Point-in-time
Total utility plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$3.89B	USD	Point-in-time
Total utility plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$4.20B	USD	Point-in-time
Less accumulated depreciation and amortization	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.35B	USD	Point-in-time
Less accumulated depreciation and amortization	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$1.24B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$2.85B	USD	Point-in-time
Net utility plant	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$2.65B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$78.38M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$44.55M	USD	Point-in-time
Customers, net	`AccountsReceivableNetCurrent`	$60.78M	USD	Point-in-time
Customers, net	`AccountsReceivableNetCurrent`	$44.02M	USD	Point-in-time
Regulatory balancing accounts	`RegulatoryAssetsCurrent`	$78.60M	USD	Point-in-time
Regulatory balancing accounts	`RegulatoryAssetsCurrent`	$96.24M	USD	Point-in-time
Other, net	`NontradeReceivablesCurrent`	$18.45M	USD	Point-in-time
Other, net	`NontradeReceivablesCurrent`	$20.33M	USD	Point-in-time
Unbilled revenue, net	`ReceivablesLongTermContractsOrPrograms`	$32.76M	USD	Point-in-time
Unbilled revenue, net	`ReceivablesLongTermContractsOrPrograms`	$34.07M	USD	Point-in-time
Materials and supplies at weighted average cost	`PublicUtilitiesInventory`	$9.51M	USD	Point-in-time
Materials and supplies at weighted average cost	`PublicUtilitiesInventory`	$8.83M	USD	Point-in-time
Taxes, prepaid expenses, and other assets	`TaxesPrepaidExpensesAndOtherAssetsCurrent`	$21.97M	USD	Point-in-time
Taxes, prepaid expenses, and other assets	`TaxesPrepaidExpensesAndOtherAssetsCurrent`	$17.96M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$300.46M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$266.02M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$325.38M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$285.69M	USD	Point-in-time
Goodwill	`Goodwill`	$2.96M	USD	Point-in-time
Goodwill	`Goodwill`	$36.81M	USD	Point-in-time
Goodwill	`Goodwill`	$31.84M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$153.44M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$120.46M	USD	Point-in-time
Total other assets	`TotalOtherAssets`	$477.67M	USD	Point-in-time
Total other assets	`TotalOtherAssets`	$475.95M	USD	Point-in-time
TOTAL ASSETS	`Assets`	$3.62B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$3.39B	USD	Point-in-time
Common stock, $0.01 par value; 68,000 shares authorized, 53,716 and 50,334 outstanding in 2021 and 2020, respectively	`CommonStockValue`	$503.00K	USD	Point-in-time
Common stock, $0.01 par value; 68,000 shares authorized, 53,716 and 50,334 outstanding in 2021 and 2020, respectively	`CommonStockValue`	$537.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$651.12M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$448.63M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$472.21M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$525.94M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$5.39M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	-	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$779.91M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.18B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$730.16M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$921.34M	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$1.06B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$781.10M	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$2.24B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$1.70B	USD	Point-in-time
Current maturities of long-term debt, net	`LongTermDebtCurrent`	$5.13M	USD	Point-in-time
Current maturities of long-term debt, net	`LongTermDebtCurrent`	$5.19M	USD	Point-in-time
Short-term borrowings	`ShortTermBorrowings`	$370.00M	USD	Point-in-time
Short-term borrowings	`ShortTermBorrowings`	$35.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$131.72M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$144.37M	USD	Point-in-time
Regulatory balancing accounts	`RegulatoryLiabilityCurrent`	$34.64M	USD	Point-in-time
Regulatory balancing accounts	`RegulatoryLiabilityCurrent`	$17.55M	USD	Point-in-time
Accrued other taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$5.38M	USD	Point-in-time
Accrued other taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$4.48M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$6.54M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$6.18M	USD	Point-in-time
Other accrued liabilities	`AccruedLiabilitiesAndOtherLiabilities`	$36.56M	USD	Point-in-time
Other accrued liabilities	`AccruedLiabilitiesAndOtherLiabilities`	$42.55M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$256.58M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$588.71M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$276.03M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$298.94M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$180.72M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$180.43M	USD	Point-in-time
Pension	`PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent`	$92.29M	USD	Point-in-time
Pension	`PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent`	$115.58M	USD	Point-in-time
Total refunds	`ContractWithCustomerRefundLiabilityNoncurrent`	$198.09M	USD	Point-in-time
Total refunds	`ContractWithCustomerRefundLiabilityNoncurrent`	$195.62M	USD	Point-in-time
Contributions in aid of construction	`ContributionsInAidOfConstruction`	$285.67M	USD	Point-in-time
Contributions in aid of construction	`ContributionsInAidOfConstruction`	$268.05M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$72.51M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$67.09M	USD	Point-in-time
Commitments and contingencies (Note 15)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 15)	`CommitmentsAndContingencies`	-	USD	Point-in-time
TOTAL CAPITALIZATION AND LIABILITIES	`LiabilitiesAndStockholdersEquity`	$3.39B	USD	Point-in-time
TOTAL CAPITALIZATION AND LIABILITIES	`LiabilitiesAndStockholdersEquity`	$3.62B	USD	Point-in-time

Income Statement 87 line items

Line Item	Tag	Value	Unit	Period
Operating revenue	`RegulatedOperatingRevenueWater`	$790.91M	USD	Annual
Operating revenue	`RegulatedOperatingRevenueWater`	$794.31M	USD	Annual
Operating revenue	`RegulatedOperatingRevenueWater`	$714.56M	USD	Annual
Purchased water	`CostOfPurchasedWater`	$225.02M	USD	Annual
Purchased water	`CostOfPurchasedWater`	$212.46M	USD	Annual
Purchased water	`CostOfPurchasedWater`	$230.08M	USD	Annual
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$31.36M	USD	Annual
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$37.11M	USD	Annual
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$34.01M	USD	Annual
Pump taxes	`PumpTaxes`	$15.34M	USD	Annual
Pump taxes	`PumpTaxes`	$12.65M	USD	Annual
Pump taxes	`PumpTaxes`	$11.52M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$108.62M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$117.06M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$126.69M	USD	Annual
Other operations	`UtilitiesOperatingExpenseOther`	$90.06M	USD	Annual
Other operations	`UtilitiesOperatingExpenseOther`	$95.86M	USD	Annual
Other operations	`UtilitiesOperatingExpenseOther`	$86.39M	USD	Annual
Maintenance	`UtilitiesOperatingExpenseMaintenance`	$29.59M	USD	Annual
Maintenance	`UtilitiesOperatingExpenseMaintenance`	$26.83M	USD	Annual
Maintenance	`UtilitiesOperatingExpenseMaintenance`	$28.03M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$89.22M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$108.72M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$98.50M	USD	Annual
Income taxes	`UtilitiesOperatingExpenseIncomeTaxExpenseBenefit`	$2.81M	USD	Annual
Income taxes	`UtilitiesOperatingExpenseIncomeTaxExpenseBenefit`	$16.28M	USD	Annual
Income taxes	`UtilitiesOperatingExpenseIncomeTaxExpenseBenefit`	$11.44M	USD	Annual
Property and other taxes	`UtilitiesOperatingExpenseTaxes`	$32.48M	USD	Annual
Property and other taxes	`UtilitiesOperatingExpenseTaxes`	$28.79M	USD	Annual
Property and other taxes	`UtilitiesOperatingExpenseTaxes`	$30.03M	USD	Annual
Total operating expenses	`UtilitiesOperatingExpense`	$657.64M	USD	Annual
Total operating expenses	`UtilitiesOperatingExpense`	$615.14M	USD	Annual
Total operating expenses	`UtilitiesOperatingExpense`	$664.14M	USD	Annual
Net operating income	`OperatingIncomeLoss`	$126.77M	USD	Annual
Net operating income	`OperatingIncomeLoss`	$136.67M	USD	Annual
Net operating income	`OperatingIncomeLoss`	$99.41M	USD	Annual
Non-regulated revenue	`UnregulatedOperatingRevenue`	$22.76M	USD	Annual
Non-regulated revenue	`UnregulatedOperatingRevenue`	$19.20M	USD	Annual
Non-regulated revenue	`UnregulatedOperatingRevenue`	$16.92M	USD	Annual
Non-regulated expenses	`OtherNonoperatingExpense`	$17.23M	USD	Annual
Non-regulated expenses	`OtherNonoperatingExpense`	$13.87M	USD	Annual
Non-regulated expenses	`OtherNonoperatingExpense`	$14.30M	USD	Annual
Other components of net periodic benefit credit (cost)	`DefinedBenefitPlanOtherCosts`	$5.73M	USD	Annual
Other components of net periodic benefit credit (cost)	`DefinedBenefitPlanOtherCosts`	$-9.90M	USD	Annual
Other components of net periodic benefit credit (cost)	`DefinedBenefitPlanOtherCosts`	$4.99M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$3.19M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$4.98M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$6.68M	USD	Annual
Gain on sale of non-utility property	`GainLossOnDispositionOfAssets`	$28.00K	USD	Annual
Gain on sale of non-utility property	`GainLossOnDispositionOfAssets`	$94.00K	USD	Annual
Gain on sale of non-utility property	`GainLossOnDispositionOfAssets`	-	USD	Annual
Income tax expense on other income and expenses	`UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit`	$583.00K	USD	Annual
Income tax expense on other income and expenses	`UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit`	$1.39M	USD	Annual
Income tax expense on other income and expenses	`UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit`	$1.29M	USD	Annual
Net other income	`OtherNonoperatingIncomeExpense`	$4.92M	USD	Annual
Net other income	`OtherNonoperatingIncomeExpense`	$17.42M	USD	Annual
Net other income	`OtherNonoperatingIncomeExpense`	$2.03M	USD	Annual
Interest expense	`InterestExpenseDebt`	$44.89M	USD	Annual
Interest expense	`InterestExpenseDebt`	$44.98M	USD	Annual
Interest expense	`InterestExpenseDebt`	$45.05M	USD	Annual
Allowance for borrowed funds used during construction	`InterestCostsCapitalizedAdjustment`	$1.77M	USD	Annual
Allowance for borrowed funds used during construction	`InterestCostsCapitalizedAdjustment`	$3.67M	USD	Annual
Allowance for borrowed funds used during construction	`InterestCostsCapitalizedAdjustment`	$3.19M	USD	Annual
Net interest expense	`InterestCostsIncurred`	$41.22M	USD	Annual
Net interest expense	`InterestCostsIncurred`	$43.21M	USD	Annual
Net interest expense	`InterestCostsIncurred`	$41.86M	USD	Annual
Net income	`ProfitLoss`	$96.83M	USD	Annual
Net income	`ProfitLoss`	$100.98M	USD	Annual
Net income	`ProfitLoss`	$63.12M	USD	Annual
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-146.00K	USD	Annual
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Net income	`NetIncomeLoss`	$101.12M	USD	Annual
Net income	`NetIncomeLoss`	$96.83M	USD	Annual
Net income	`NetIncomeLoss`	$63.12M	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.97	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.31	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.96	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.97	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.96	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.31	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.63M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	49.27M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	48.17M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	48.17M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	49.27M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	51.63M	shares	Annual

Cash Flow Statement 125 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$96.83M	USD	Annual
Net income	`ProfitLoss`	$100.98M	USD	Annual
Net income	`ProfitLoss`	$63.12M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$91.29M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$111.58M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$100.94M	USD	Annual
Amortization of debt premium and expenses	`AmortizationOfDebtDiscountPremium`	$412.00K	USD	Annual
Amortization of debt premium and expenses	`AmortizationOfDebtDiscountPremium`	$366.00K	USD	Annual
Amortization of debt premium and expenses	`AmortizationOfDebtDiscountPremium`	$744.00K	USD	Annual
Changes in normalized deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-25.20M	USD	Annual
Changes in normalized deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-34.44M	USD	Annual
Changes in normalized deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-15.35M	USD	Annual
Change in value of life insurance contracts	`LifeInsuranceCorporateOrBankOwnedChangeInValue`	$3.80M	USD	Annual
Change in value of life insurance contracts	`LifeInsuranceCorporateOrBankOwnedChangeInValue`	$4.29M	USD	Annual
Change in value of life insurance contracts	`LifeInsuranceCorporateOrBankOwnedChangeInValue`	$5.10M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$3.19M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$4.98M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$6.68M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$6.80M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$4.59M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$6.73M	USD	Annual
Gain on sale of non-utility properties	`GainLossOnDispositionOfAssets`	$28.00K	USD	Annual
Gain on sale of non-utility properties	`GainLossOnDispositionOfAssets`	$94.00K	USD	Annual
Gain on sale of non-utility properties	`GainLossOnDispositionOfAssets`	-	USD	Annual
Write-off of capital costs	`NoncashProjectAbandonmentCosts`	-	USD	Annual
Write-off of capital costs	`NoncashProjectAbandonmentCosts`	$698.00K	USD	Annual
Write-off of capital costs	`NoncashProjectAbandonmentCosts`	$524.00K	USD	Annual
Receivables	`IncreaseDecreaseInReceivables`	$4.58M	USD	Annual
Receivables	`IncreaseDecreaseInReceivables`	$18.34M	USD	Annual
Receivables	`IncreaseDecreaseInReceivables`	$12.83M	USD	Annual
Unbilled revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-1.31M	USD	Annual
Unbilled revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$1.45M	USD	Annual
Unbilled revenue	`IncreaseDecreaseInContractWithCustomerAsset`	$-1.15M	USD	Annual
Taxes, prepaid expenses, and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$2.75M	USD	Annual
Taxes, prepaid expenses, and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$3.65M	USD	Annual
Taxes, prepaid expenses, and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$3.54M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$10.72M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-2.94M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$373.00K	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-6.10M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$1.14M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$1.28M	USD	Annual
Other changes in noncurrent assets and liabilities	`IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet`	$-9.41M	USD	Annual
Other changes in noncurrent assets and liabilities	`IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet`	$-264.00K	USD	Annual
Other changes in noncurrent assets and liabilities	`IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet`	$83.45M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$231.72M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$168.79M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$117.92M	USD	Annual
Utility plant expenditures	`PaymentsToAcquireWaterAndWasteWaterSystems`	$293.19M	USD	Annual
Utility plant expenditures	`PaymentsToAcquireWaterAndWasteWaterSystems`	$298.65M	USD	Annual
Utility plant expenditures	`PaymentsToAcquireWaterAndWasteWaterSystems`	$273.77M	USD	Annual
Proceeds from sale of non-utility properties	`ProceedsFromSaleOfPropertyPlantAndEquipment`	-	USD	Annual
Proceeds from sale of non-utility properties	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$108.00K	USD	Annual
Proceeds from sale of non-utility properties	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$28.00K	USD	Annual
Business Acquisition, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Business Acquisition, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$6.45M	USD	Annual
Business Acquisition, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$40.48M	USD	Annual
Payment for investments	`PaymentsToAcquireEquityMethodInvestments`	$4.60M	USD	Annual
Payment for investments	`PaymentsToAcquireEquityMethodInvestments`	-	USD	Annual
Payment for investments	`PaymentsToAcquireEquityMethodInvestments`	-	USD	Annual
Return of investment	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$1.00M	USD	Annual
Return of investment	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	Annual
Return of investment	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	Annual
Purchase of life insurance	`PaymentsToAcquireLifeInsurancePolicies`	$2.33M	USD	Annual
Purchase of life insurance	`PaymentsToAcquireLifeInsurancePolicies`	$2.33M	USD	Annual
Purchase of life insurance	`PaymentsToAcquireLifeInsurancePolicies`	$2.22M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-346.07M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-300.87M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-275.96M	USD	Annual
Short-term borrowings	`ProceedsFromShortTermDebt`	$200.00M	USD	Annual
Short-term borrowings	`ProceedsFromShortTermDebt`	$260.00M	USD	Annual
Short-term borrowings	`ProceedsFromShortTermDebt`	$335.00M	USD	Annual
Repayment of short-term borrowings	`RepaymentsOfShortTermDebt`	$150.00M	USD	Annual
Repayment of short-term borrowings	`RepaymentsOfShortTermDebt`	$535.00M	USD	Annual
Repayment of short-term borrowings	`RepaymentsOfShortTermDebt`	$140.10M	USD	Annual
Issuance of long-term debt, net of debt issuance costs of $1,064 for 2021, $0 for 2020, and $1,796 for 2019.	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Issuance of long-term debt, net of debt issuance costs of $1,064 for 2021, $0 for 2020, and $1,796 for 2019.	`ProceedsFromIssuanceOfLongTermDebt`	$398.20M	USD	Annual
Issuance of long-term debt, net of debt issuance costs of $1,064 for 2021, $0 for 2020, and $1,796 for 2019.	`ProceedsFromIssuanceOfLongTermDebt`	$278.94M	USD	Annual
Advances and contributions in aid of construction	`ProceedsFromContributionInAidOfConstructionFinancingActivities`	$28.17M	USD	Annual
Advances and contributions in aid of construction	`ProceedsFromContributionInAidOfConstructionFinancingActivities`	$27.29M	USD	Annual
Advances and contributions in aid of construction	`ProceedsFromContributionInAidOfConstructionFinancingActivities`	$27.77M	USD	Annual
Refunds of advances for construction	`RepaymentsOfAdvancesForConstruction`	$7.57M	USD	Annual
Refunds of advances for construction	`RepaymentsOfAdvancesForConstruction`	$10.20M	USD	Annual
Refunds of advances for construction	`RepaymentsOfAdvancesForConstruction`	$10.63M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$22.14M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$5.35M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$405.57M	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$2.50M	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$1.68M	USD	Annual
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$1.77M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$83.58M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$20.42M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$197.72M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$38.02M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$41.77M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$47.40M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$229.98M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$102.75M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$104.68M	USD	Annual
Change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$35.52M	USD	Annual
Change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-4.42M	USD	Annual
Change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.83M	USD	Annual
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$80.65M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$43.30M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$45.13M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.72M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$80.65M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$43.30M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$45.13M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.72M	USD	Point-in-time
Interest (net of amounts capitalized)	`InterestPaidNet`	$40.79M	USD	Annual
Interest (net of amounts capitalized)	`InterestPaidNet`	$40.98M	USD	Annual
Interest (net of amounts capitalized)	`InterestPaidNet`	$41.62M	USD	Annual
Income taxes	`ProceedsFromIncomeTaxRefunds`	$3.66M	USD	Annual
Income taxes	`ProceedsFromIncomeTaxRefunds`	-	USD	Annual
Income taxes	`ProceedsFromIncomeTaxRefunds`	$4.70M	USD	Annual
Accrued payables for investments in utility plant	`CapitalExpendituresIncurredButNotYetPaid`	$40.79M	USD	Annual
Accrued payables for investments in utility plant	`CapitalExpendituresIncurredButNotYetPaid`	$57.77M	USD	Annual
Accrued payables for investments in utility plant	`CapitalExpendituresIncurredButNotYetPaid`	$54.99M	USD	Annual
Utility plant contributed by developers	`NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1`	$16.29M	USD	Annual
Utility plant contributed by developers	`NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1`	$28.67M	USD	Annual
Utility plant contributed by developers	`NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1`	$19.53M	USD	Annual
Litigation proceeds for TCP contamination reclassified from liability to depreciable plant and equipment	`LitigationProceedsforMTBEContaminationReclassifiedfromOtherLongTermLiabilities`	$13.97M	USD	Annual
Litigation proceeds for TCP contamination reclassified from liability to depreciable plant and equipment	`LitigationProceedsforMTBEContaminationReclassifiedfromOtherLongTermLiabilities`	$9.30M	USD	Annual
Litigation proceeds for TCP contamination reclassified from liability to depreciable plant and equipment	`LitigationProceedsforMTBEContaminationReclassifiedfromOtherLongTermLiabilities`	$445.00K	USD	Annual

Stockholders Equity 25 line items

Line Item	Tag	Value	Unit	Period
Dividends paid on common stock (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$0.92	USD	Annual
Dividends paid on common stock (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$0.79	USD	Annual
Dividends paid on common stock (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$0.85	USD	Annual
Balance at the beginning of the period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$779.91M	USD	Point-in-time
Balance at the beginning of the period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.18B	USD	Point-in-time
Balance at the beginning of the period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$730.16M	USD	Point-in-time
Balance at the beginning of the period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$921.34M	USD	Point-in-time
Net income	`ProfitLoss`	$96.83M	USD	Annual
Net income	`ProfitLoss`	$100.98M	USD	Annual
Net income	`ProfitLoss`	$63.12M	USD	Annual
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$204.53M	USD	Annual
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$27.15M	USD	Annual
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$88.05M	USD	Annual
Repurchase of common stock	`StockRepurchasedDuringPeriodValue`	$1.68M	USD	Annual
Repurchase of common stock	`StockRepurchasedDuringPeriodValue`	$2.50M	USD	Annual
Repurchase of common stock	`StockRepurchasedDuringPeriodValue`	$1.77M	USD	Annual
Dividends paid on common stock	`DividendsCommonStockCash`	$47.40M	USD	Annual
Dividends paid on common stock	`DividendsCommonStockCash`	$38.02M	USD	Annual
Dividends paid on common stock	`DividendsCommonStockCash`	$41.77M	USD	Annual
Acquisition of business with noncontrolling interest	`NoncontrollingInterestIncreaseFromBusinessCombination`	$5.29M	USD	Annual
Investment in business with noncontrolling interest	`NoncontrollingInterestIncreaseFromInvestmentInBusiness`	-	USD	Annual
Balance at the end of the period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$779.91M	USD	Point-in-time
Balance at the end of the period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.18B	USD	Point-in-time
Balance at the end of the period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$730.16M	USD	Point-in-time
Balance at the end of the period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$921.34M	USD	Point-in-time

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