10-K Filing

OGE ENERGY CORP. CIK: 1021635 FY 2020

Filing Information

Form Type	10-K
Accession Number	`0001021635-21-000026`
Period End Date	20201231
Filing Date	20210225
Fiscal Year	2020
Fiscal Period	FY
XBRL Instance	oge-20201231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 101 Income Statement 84 Cash Flow Statement 119 Stockholders Equity 30 Comprehensive Income 51

Balance Sheet 101 line items

Line Item	Tag	Value	Unit	Period
Allowance for Doubtful Accounts Receivable	`AllowanceForDoubtfulAccountsReceivable`	$2.60M	USD	Point-in-time
Allowance for Doubtful Accounts Receivable	`AllowanceForDoubtfulAccountsReceivable`	$1.50M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$14.40M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$1.10M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$94.30M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	-	USD	Point-in-time
Accounts receivable, after allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$157.80M	USD	Point-in-time
Accounts receivable, after allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$153.80M	USD	Point-in-time
Accrued unbilled revenues	`UnbilledReceivablesCurrent`	$67.60M	USD	Point-in-time
Accrued unbilled revenues	`UnbilledReceivablesCurrent`	$64.70M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$10.90M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$8.10M	USD	Point-in-time
Fuel inventories	`InventoryNet`	$36.50M	USD	Point-in-time
Fuel inventories	`InventoryNet`	$46.30M	USD	Point-in-time
Materials and supplies, at average cost	`OtherInventorySupplies`	$116.20M	USD	Point-in-time
Materials and supplies, at average cost	`OtherInventorySupplies`	$90.60M	USD	Point-in-time
Fuel clause under recoveries	`DeferredFuelCost`	-	USD	Point-in-time
Fuel clause under recoveries	`DeferredFuelCost`	$39.50M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$41.20M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$24.40M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$430.20M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$428.50M	USD	Point-in-time
Investment in unconsolidated affiliates	`EquityMethodInvestments`	$397.40M	USD	Point-in-time
Investment in unconsolidated affiliates	`EquityMethodInvestments`	$1.18B	USD	Point-in-time
Investment in unconsolidated affiliates	`EquityMethodInvestments`	$1.15B	USD	Point-in-time
Other	`OtherLongTermInvestments`	$82.70M	USD	Point-in-time
Other	`OtherLongTermInvestments`	$86.70M	USD	Point-in-time
Total other property and investments	`OtherInvestments`	$484.10M	USD	Point-in-time
Total other property and investments	`OtherInvestments`	$1.23B	USD	Point-in-time
In service	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$13.30B	USD	Point-in-time
In service	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$12.77B	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$141.60M	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$145.50M	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentGross`	$12.91B	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentGross`	$13.44B	USD	Point-in-time
Less: accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$4.07B	USD	Point-in-time
Less: accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$3.87B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$9.04B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$9.37B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$415.60M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$306.00M	USD	Point-in-time
Other	`OtherAssetsMiscellaneousNoncurrent`	$16.00M	USD	Point-in-time
Other	`OtherAssetsMiscellaneousNoncurrent`	$9.30M	USD	Point-in-time
Total deferred charges and other assets	`OtherAssetsNoncurrent`	$431.60M	USD	Point-in-time
Total deferred charges and other assets	`OtherAssetsNoncurrent`	$315.30M	USD	Point-in-time
TOTAL ASSETS	`Assets`	$10.75B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$11.02B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$10.72B	USD	Point-in-time
Allowance for Doubtful Accounts Receivable	`AllowanceForDoubtfulAccountsReceivable`	$2.60M	USD	Point-in-time
Allowance for Doubtful Accounts Receivable	`AllowanceForDoubtfulAccountsReceivable`	$1.50M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$112.00M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$95.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$251.50M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$194.90M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrent`	$80.50M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrent`	$77.60M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$81.10M	USD	Point-in-time
Customer deposits	`CustomerDepositsCurrent`	$83.00M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$41.90M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$55.70M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$37.90M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$40.20M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$40.60M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$31.10M	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtCurrent`	-	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtCurrent`	-	USD	Point-in-time
Fuel clause over recoveries	`CustomerRefundLiabilityCurrent`	$28.60M	USD	Point-in-time
Fuel clause over recoveries	`CustomerRefundLiabilityCurrent`	$4.80M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$33.70M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$65.20M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$657.90M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$697.40M	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$3.49B	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$3.20B	USD	Point-in-time
Accrued benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$231.40M	USD	Point-in-time
Accrued benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$225.00M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$1.38B	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$1.27B	USD	Point-in-time
Accumulated Deferred Investment Tax Credit	`AccumulatedDeferredInvestmentTaxCredit`	$10.90M	USD	Point-in-time
Accumulated Deferred Investment Tax Credit	`AccumulatedDeferredInvestmentTaxCredit`	$7.10M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.22B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.19B	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$195.40M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$200.30M	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$2.90B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$3.03B	USD	Point-in-time
Total liabilities	`Liabilities`	$7.09B	USD	Point-in-time
Total liabilities	`Liabilities`	$6.88B	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 15)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 15)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stockholders' equity	`CommonStocksIncludingAdditionalPaidInCapital`	$1.12B	USD	Point-in-time
Common stockholders' equity	`CommonStocksIncludingAdditionalPaidInCapital`	$1.13B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.04B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.54B	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-27.90M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-28.90M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-32.10M	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$4.14B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.63B	USD	Point-in-time
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	`LiabilitiesAndStockholdersEquity`	$11.02B	USD	Point-in-time
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	`LiabilitiesAndStockholdersEquity`	$10.72B	USD	Point-in-time

Income Statement 84 line items

Line Item	Tag	Value	Unit	Period
Revenue from Contract with Customer, Excluding Assessed Tax	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.18B	USD	Annual
Revenue from Contract with Customer, Excluding Assessed Tax	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.07B	USD	Annual
Revenue from Contract with Customer, Excluding Assessed Tax	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.21B	USD	Annual
Revenues from Alternative Revenue Programs	`RevenuesfromAlternativeRevenuePrograms`	$58.60M	USD	Annual
Revenues from Alternative Revenue Programs	`RevenuesfromAlternativeRevenuePrograms`	$56.10M	USD	Annual
Revenues from Alternative Revenue Programs	`RevenuesfromAlternativeRevenuePrograms`	$52.50M	USD	Annual
Total operating revenues	`Revenues`	$2.27B	USD	Annual
Total operating revenues	`Revenues`	$2.12B	USD	Annual
Total operating revenues	`Revenues`	$2.23B	USD	Annual
Total cost of sales	`CostOfGoodsAndServicesSold`	$644.60M	USD	Annual
Total cost of sales	`CostOfGoodsAndServicesSold`	$786.90M	USD	Annual
Total cost of sales	`CostOfGoodsAndServicesSold`	$892.50M	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$474.60M	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$462.80M	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$491.80M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$355.00M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$391.30M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$321.60M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$101.40M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$92.00M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$93.60M	USD	Annual
Operating expenses	`OperatingExpenses`	$955.50M	USD	Annual
Operating expenses	`OperatingExpenses`	$888.20M	USD	Annual
Operating expenses	`OperatingExpenses`	$940.40M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$522.20M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$504.30M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$489.60M	USD	Annual
Equity in earnings (losses) of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$113.90M	USD	Annual
Equity in earnings (losses) of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$152.80M	USD	Annual
Equity in earnings (losses) of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$-668.00M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$4.80M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$23.80M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$4.50M	USD	Annual
Pension and Other Postretirement Benefits Cost (Reversal of Cost)	`PensionAndOtherPostretirementBenefitExpense`	$10.80M	USD	Annual
Pension and Other Postretirement Benefits Cost (Reversal of Cost)	`PensionAndOtherPostretirementBenefitExpense`	$9.80M	USD	Annual
Pension and Other Postretirement Benefits Cost (Reversal of Cost)	`PensionAndOtherPostretirementBenefitExpense`	$3.90M	USD	Annual
Other income	`OtherNonoperatingIncome`	$37.50M	USD	Annual
Other income	`OtherNonoperatingIncome`	$21.90M	USD	Annual
Other income	`OtherNonoperatingIncome`	$21.70M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$23.50M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$23.40M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$35.20M	USD	Annual
Net other income (expense)	`NonoperatingIncomeExpense`	$107.00M	USD	Annual
Net other income (expense)	`NonoperatingIncomeExpense`	$-664.80M	USD	Annual
Net other income (expense)	`NonoperatingIncomeExpense`	$164.10M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$157.40M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$152.80M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$138.30M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$1.90M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$2.80M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$11.70M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$10.30M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$7.60M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$12.40M	USD	Annual
Interest expense	`InterestExpense`	$158.50M	USD	Annual
Interest expense	`InterestExpense`	$147.90M	USD	Annual
Interest expense	`InterestExpense`	$156.00M	USD	Annual
INCOME (LOSS) BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$497.70M	USD	Annual
INCOME (LOSS) BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-301.10M	USD	Annual
INCOME (LOSS) BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$463.40M	USD	Annual
INCOME TAX EXPENSE (BENEFIT)	`IncomeTaxExpenseBenefit`	$29.80M	USD	Annual
INCOME TAX EXPENSE (BENEFIT)	`IncomeTaxExpenseBenefit`	$72.20M	USD	Annual
INCOME TAX EXPENSE (BENEFIT)	`IncomeTaxExpenseBenefit`	$-127.40M	USD	Annual
NET INCOME (LOSS)	`ProfitLoss`	$425.50M	USD	Annual
NET INCOME (LOSS)	`ProfitLoss`	$433.60M	USD	Annual
NET INCOME (LOSS)	`ProfitLoss`	$-173.70M	USD	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	200.10M	shares	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	199.70M	shares	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	200.10M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	200.10M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	200.50M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	200.70M	shares	Annual
BASIC EARNINGS (LOSS) PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$2.17	USD	Annual
BASIC EARNINGS (LOSS) PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$-0.87	USD	Annual
BASIC EARNINGS (LOSS) PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$2.13	USD	Annual
DILUTED EARNINGS (LOSS) PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$2.16	USD	Annual
DILUTED EARNINGS (LOSS) PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$-0.87	USD	Annual
DILUTED EARNINGS (LOSS) PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$2.12	USD	Annual
DIVIDENDS DECLARED PER COMMON SHARE	`CommonStockDividendsPerShareDeclared`	$1.50	USD	Annual
DIVIDENDS DECLARED PER COMMON SHARE	`CommonStockDividendsPerShareDeclared`	$1.58	USD	Annual
DIVIDENDS DECLARED PER COMMON SHARE	`CommonStockDividendsPerShareDeclared`	$1.40	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$-4.20M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$-5.70M	USD	Annual

Cash Flow Statement 119 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$425.50M	USD	Annual
Net income (loss)	`ProfitLoss`	$433.60M	USD	Annual
Net income (loss)	`ProfitLoss`	$-173.70M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$391.30M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$321.60M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$355.00M	USD	Annual
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$78.50M	USD	Annual
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$27.60M	USD	Annual
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$-134.50M	USD	Annual
Equity in (earnings) losses of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$113.90M	USD	Annual
Equity in (earnings) losses of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$152.80M	USD	Annual
Equity in (earnings) losses of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$-668.00M	USD	Annual
Distributions from unconsolidated affiliates	`Increasedecreaseindistributionsfromunconsolidatedaffiliates`	$141.20M	USD	Annual
Distributions from unconsolidated affiliates	`Increasedecreaseindistributionsfromunconsolidatedaffiliates`	$125.50M	USD	Annual
Distributions from unconsolidated affiliates	`Increasedecreaseindistributionsfromunconsolidatedaffiliates`	$91.70M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$4.80M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$23.80M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$4.50M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$13.40M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$13.90M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$9.80M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$47.10M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$10.80M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$112.00M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-16.50M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-64.00M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-45.60M	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$-6.20M	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$3.80M	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$9.20M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$1.00M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$-26.30M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$19.20M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$-3.10M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$-18.80M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$-19.80M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$4.10M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-2.80M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$1.00M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$-4.20M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$-27.30M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$8.90M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$-63.30M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$3.40M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$33.00M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-5.10M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$16.80M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-25.10M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$29.70M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-34.50M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$59.80M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-38.00M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-26.80M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$73.20M	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$681.50M	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$712.80M	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$951.10M	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$573.60M	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$650.50M	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$635.50M	USD	Annual
Investment in unconsolidated affiliates	`InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease`	$-4.40M	USD	Annual
Investment in unconsolidated affiliates	`InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease`	$-7.70M	USD	Annual
Investment in unconsolidated affiliates	`InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease`	$-2.50M	USD	Annual
Return of capital - unconsolidated affiliates	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$18.50M	USD	Annual
Return of capital - unconsolidated affiliates	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	Annual
Return of capital - unconsolidated affiliates	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfProductiveAssets`	$100.00K	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfProductiveAssets`	-	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfProductiveAssets`	-	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-624.70M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-576.00M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-654.90M	USD	Annual
Increase (decrease) in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$112.00M	USD	Annual
Increase (decrease) in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-17.00M	USD	Annual
Increase (decrease) in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-168.40M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$297.10M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$296.50M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$396.00M	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$250.10M	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$100.00K	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$250.10M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$272.20M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$314.90M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$299.20M	USD	Annual
Cash paid for employee equity-based compensation and expense of common stock	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$-10.30M	USD	Annual
Cash paid for employee equity-based compensation and expense of common stock	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$-7.10M	USD	Annual
Cash paid for employee equity-based compensation and expense of common stock	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$-500.00K	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-100.00K	USD	Annual
Purchase of treasury stock	`PaymentsForRepurchaseOfEquity`	$14.70M	USD	Annual
Purchase of treasury stock	`PaymentsForRepurchaseOfEquity`	-	USD	Annual
Purchase of treasury stock	`PaymentsForRepurchaseOfEquity`	-	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-295.20M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-56.80M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-151.10M	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$1.10M	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$79.90M	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-94.30M	USD	Annual
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashAndCashEquivalentsAtCarryingValue`	$14.40M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashAndCashEquivalentsAtCarryingValue`	$1.10M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashAndCashEquivalentsAtCarryingValue`	$94.30M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashAndCashEquivalentsAtCarryingValue`	-	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashAndCashEquivalentsAtCarryingValue`	$14.40M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashAndCashEquivalentsAtCarryingValue`	$1.10M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashAndCashEquivalentsAtCarryingValue`	$94.30M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashAndCashEquivalentsAtCarryingValue`	-	USD	Point-in-time
Interest costs capitalized	`InterestCostsCapitalized`	$1.90M	USD	Annual
Interest costs capitalized	`InterestCostsCapitalized`	$2.80M	USD	Annual
Interest costs capitalized	`InterestCostsCapitalized`	$11.70M	USD	Annual
Interest (net of interest capitalized)	`InterestPaidNet`	$152.20M	USD	Annual
Interest (net of interest capitalized)	`InterestPaidNet`	$153.80M	USD	Annual
Interest (net of interest capitalized)	`InterestPaidNet`	$153.40M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$3.90M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$2.80M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$5.50M	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$28.90M	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$6.80M	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$-9.20M	USD	Annual

Stockholders Equity 30 line items

Line Item	Tag	Value	Unit	Period
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	200.10M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	200.10M	shares	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.85B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.14B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.01B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.63B	USD	Point-in-time
Net income (loss)	`ProfitLoss`	$425.50M	USD	Annual
Net income (loss)	`ProfitLoss`	$433.60M	USD	Annual
Net income (loss)	`ProfitLoss`	$-173.70M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$-4.20M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$-5.70M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$278.70M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$317.80M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$303.80M	USD	Annual
Purchase of treasury stock	`StockIssuedDuringPeriodValueNewIssues`	$-14.70M	USD	3 Qtrs
Purchase of treasury stock	`StockIssuedDuringPeriodValueNewIssues`	$-100.00K	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.70M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$13.00M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.60M	USD	Annual
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.85B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.14B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.01B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.63B	USD	Point-in-time
DIVIDENDS DECLARED PER COMMON SHARE	`CommonStockDividendsPerShareDeclared`	$1.50	USD	Annual
DIVIDENDS DECLARED PER COMMON SHARE	`CommonStockDividendsPerShareDeclared`	$1.58	USD	Annual
DIVIDENDS DECLARED PER COMMON SHARE	`CommonStockDividendsPerShareDeclared`	$1.40	USD	Annual
Treasury Stock, Shares, Acquired	`TreasuryStockSharesAcquired`	405,000.00	shares	Annual
Treasury Stock, Common, Shares	`TreasuryStockCommonShares`	0.00	shares	Point-in-time
Treasury Stock, Common, Shares	`TreasuryStockCommonShares`	100,000.00	shares	Point-in-time

Comprehensive Income 51 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$425.50M	USD	Annual
Net income (loss)	`ProfitLoss`	$433.60M	USD	Annual
Net income (loss)	`ProfitLoss`	$-173.70M	USD	Annual
Amortization of deferred net loss, net of tax of $1.2, $1.1 and $1.1, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-3.90M	USD	Annual
Amortization of deferred net loss, net of tax of $1.2, $1.1 and $1.1, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-3.40M	USD	Annual
Amortization of deferred net loss, net of tax of $1.2, $1.1 and $1.1, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-3.30M	USD	Annual
Net loss arising during the period, net of tax of ($1.7), ($2.6) and ($4.7), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-5.10M	USD	Annual
Net loss arising during the period, net of tax of ($1.7), ($2.6) and ($4.7), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-14.10M	USD	Annual
Net loss arising during the period, net of tax of ($1.7), ($2.6) and ($4.7), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-8.30M	USD	Annual
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$8.60M	USD	Annual
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$2.20M	USD	Annual
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$4.70M	USD	Annual
Amortization of deferred net loss, net of tax of $1.2, $1.1 and $1.1, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$1.10M	USD	Annual
Amortization of deferred net loss, net of tax of $1.2, $1.1 and $1.1, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$1.10M	USD	Annual
Amortization of deferred net loss, net of tax of $1.2, $1.1 and $1.1, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$1.20M	USD	Annual
Net loss arising during the period, net of tax of ($1.7), ($2.6) and ($4.7), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-2.60M	USD	Annual
Amortization of prior service credit, net of tax of ($0.6), ($0.6) and ($0.6), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	$-1.70M	USD	Annual
Net loss arising during the period, net of tax of ($1.7), ($2.6) and ($4.7), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-4.70M	USD	Annual
Amortization of prior service credit, net of tax of ($0.6), ($0.6) and ($0.6), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	$-1.70M	USD	Annual
Net loss arising during the period, net of tax of ($1.7), ($2.6) and ($4.7), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-1.70M	USD	Annual
Amortization of prior service credit, net of tax of ($0.6), ($0.6) and ($0.6), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	$-1.70M	USD	Annual
Amortization of deferred net gain, net of tax of $0.0, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	-	USD	Annual
Amortization of deferred net gain, net of tax of $0.0, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	$100.00K	USD	Annual
Amortization of deferred net gain, net of tax of $0.0, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	$200.00K	USD	Annual
Net gain (loss) arising during the period, net of tax of ($0.8), ($0.1) and $0.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-200.00K	USD	Annual
Net gain (loss) arising during the period, net of tax of ($0.8), ($0.1) and $0.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-2.40M	USD	Annual
Net gain (loss) arising during the period, net of tax of ($0.8), ($0.1) and $0.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$2.10M	USD	Annual
Curtailment cost, net of tax of ($0.1), $0.0 and $0.0, respectively	`OtherComprehensiveIncomePriorServiceCreditArisingDuringPeriodRecognizedInNetPeriodicPostretirementCostNetOfTax`	-	USD	Annual
Curtailment cost, net of tax of ($0.1), $0.0 and $0.0, respectively	`OtherComprehensiveIncomePriorServiceCreditArisingDuringPeriodRecognizedInNetPeriodicPostretirementCostNetOfTax`	$-300.00K	USD	Annual
Curtailment cost, net of tax of ($0.1), $0.0 and $0.0, respectively	`OtherComprehensiveIncomePriorServiceCreditArisingDuringPeriodRecognizedInNetPeriodicPostretirementCostNetOfTax`	-	USD	Annual
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	$-200.00K	USD	Annual
Amortization of deferred net gain, net of tax of $0.0, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax`	-	USD	Annual
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	$-200.00K	USD	Annual
Amortization of deferred net gain, net of tax of $0.0, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax`	-	USD	Annual
Amortization of deferred net gain, net of tax of $0.0, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax`	-	USD	Annual
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	-	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-4.20M	USD	Annual
Net gain (loss) arising during the period, net of tax of ($0.8), ($0.1) and $0.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-100.00K	USD	Annual
Net gain (loss) arising during the period, net of tax of ($0.8), ($0.1) and $0.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$700.00K	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-5.70M	USD	Annual
Net gain (loss) arising during the period, net of tax of ($0.8), ($0.1) and $0.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-800.00K	USD	Annual
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$700.00K	USD	Annual
Amortization of prior service credit, net of tax of ($0.6), ($0.6) and ($0.6), respectively	`OtherComprehensiveIncomeLossAmortizationDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostTaxEffect`	$-600.00K	USD	Annual
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	-	USD	Annual
Amortization of prior service credit, net of tax of ($0.6), ($0.6) and ($0.6), respectively	`OtherComprehensiveIncomeLossAmortizationDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostTaxEffect`	$-600.00K	USD	Annual
Amortization of prior service credit, net of tax of ($0.6), ($0.6) and ($0.6), respectively	`OtherComprehensiveIncomeLossAmortizationDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostTaxEffect`	$-600.00K	USD	Annual
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$600.00K	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-177.90M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$434.60M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$419.80M	USD	Annual

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