10-Q Filing

BLACK HILLS CORP /SD/ CIK: 1130464 Q2 2025

Filing Information

Form Type	10-Q
Accession Number	`0000950170-25-100667`
Period End Date	20250630
Filing Date	20250731
Fiscal Year	2025
Fiscal Period	Q2
XBRL Instance	bkh-20250630_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 184 Income Statement 164 Cash Flow Statement 136 Stockholders Equity 102 Comprehensive Income 72

Balance Sheet 184 line items

Line Item	Tag	Value	Unit	Period
Common stock, par value (usd per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par value (usd per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par value (usd per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par value (usd per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$16.10M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$16.10M	USD	Point-in-time
Common stock, shares, issued	`CommonStockSharesIssued`	71.68M	shares	Point-in-time
Common stock, shares, issued	`CommonStockSharesIssued`	71.68M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$8.10M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$8.10M	USD	Point-in-time
Common stock, shares, issued	`CommonStockSharesIssued`	72.90M	shares	Point-in-time
Common stock, shares, issued	`CommonStockSharesIssued`	72.90M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	47,947.00	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	47,947.00	shares	Point-in-time
Restricted cash and equivalents	`RestrictedCashAndInvestmentsCurrent`	$7.70M	USD	Point-in-time
Restricted cash and equivalents	`RestrictedCashAndInvestmentsCurrent`	$7.70M	USD	Point-in-time
Restricted cash and equivalents	`RestrictedCashAndInvestmentsCurrent`	$7.30M	USD	Point-in-time
Restricted cash and equivalents	`RestrictedCashAndInvestmentsCurrent`	$7.30M	USD	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	56,608.00	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	56,608.00	shares	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$260.80M	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$260.80M	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$351.20M	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$351.20M	USD	Point-in-time
Materials, supplies and fuel	`InventoryNet`	$153.90M	USD	Point-in-time
Materials, supplies and fuel	`InventoryNet`	$153.90M	USD	Point-in-time
Materials, supplies and fuel	`InventoryNet`	$145.20M	USD	Point-in-time
Materials, supplies and fuel	`InventoryNet`	$145.20M	USD	Point-in-time
Income tax receivable, net	`IncomeTaxesReceivable`	$20.90M	USD	Point-in-time
Income tax receivable, net	`IncomeTaxesReceivable`	$20.90M	USD	Point-in-time
Income tax receivable, net	`IncomeTaxesReceivable`	$19.80M	USD	Point-in-time
Income tax receivable, net	`IncomeTaxesReceivable`	$19.80M	USD	Point-in-time
Regulatory assets, current	`RegulatoryAssetsCurrent`	$154.80M	USD	Point-in-time
Regulatory assets, current	`RegulatoryAssetsCurrent`	$154.80M	USD	Point-in-time
Regulatory assets, current	`RegulatoryAssetsCurrent`	$132.10M	USD	Point-in-time
Regulatory assets, current	`RegulatoryAssetsCurrent`	$132.10M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$33.60M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$33.60M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$39.20M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$39.20M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$608.40M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$608.40M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$742.30M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$742.30M	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$9.89B	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$9.89B	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$9.57B	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$9.57B	USD	Point-in-time
Less accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.03B	USD	Point-in-time
Less accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.03B	USD	Point-in-time
Less accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.94B	USD	Point-in-time
Less accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.94B	USD	Point-in-time
Total property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$7.86B	USD	Point-in-time
Total property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$7.86B	USD	Point-in-time
Total property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$7.63B	USD	Point-in-time
Total property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$7.63B	USD	Point-in-time
Goodwill	`Goodwill`	$1.30B	USD	Point-in-time
Goodwill	`Goodwill`	$1.30B	USD	Point-in-time
Goodwill	`Goodwill`	$1.30B	USD	Point-in-time
Goodwill	`Goodwill`	$1.30B	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$7.60M	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$7.60M	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$7.00M	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$7.00M	USD	Point-in-time
Regulatory assets, non-current	`RegulatoryAssetsNoncurrent`	$247.80M	USD	Point-in-time
Regulatory assets, non-current	`RegulatoryAssetsNoncurrent`	$247.80M	USD	Point-in-time
Regulatory assets, non-current	`RegulatoryAssetsNoncurrent`	$272.90M	USD	Point-in-time
Regulatory assets, non-current	`RegulatoryAssetsNoncurrent`	$272.90M	USD	Point-in-time
Other assets, non-current	`OtherAssetsNoncurrent`	$68.50M	USD	Point-in-time
Other assets, non-current	`OtherAssetsNoncurrent`	$68.50M	USD	Point-in-time
Other assets, non-current	`OtherAssetsNoncurrent`	$70.40M	USD	Point-in-time
Other assets, non-current	`OtherAssetsNoncurrent`	$70.40M	USD	Point-in-time
Total other assets, non-current	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$1.62B	USD	Point-in-time
Total other assets, non-current	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$1.62B	USD	Point-in-time
Total other assets, non-current	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$1.65B	USD	Point-in-time
Total other assets, non-current	`AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment`	$1.65B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$10.02B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$10.02B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$10.09B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$10.09B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$229.10M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$229.10M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$180.80M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$180.80M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$302.20M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$302.20M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$251.10M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$251.10M	USD	Point-in-time
Derivative liabilities, current	`DerivativeLiabilitiesCurrent`	$4.20M	USD	Point-in-time
Derivative liabilities, current	`DerivativeLiabilitiesCurrent`	$4.20M	USD	Point-in-time
Derivative liabilities, current	`DerivativeLiabilitiesCurrent`	$1.70M	USD	Point-in-time
Derivative liabilities, current	`DerivativeLiabilitiesCurrent`	$1.70M	USD	Point-in-time
Regulatory liabilities, current	`RegulatoryLiabilityCurrent`	$94.10M	USD	Point-in-time
Regulatory liabilities, current	`RegulatoryLiabilityCurrent`	$94.10M	USD	Point-in-time
Regulatory liabilities, current	`RegulatoryLiabilityCurrent`	$96.60M	USD	Point-in-time
Regulatory liabilities, current	`RegulatoryLiabilityCurrent`	$96.60M	USD	Point-in-time
Notes payable	`ShortTermBorrowings`	$123.70M	USD	Point-in-time
Notes payable	`ShortTermBorrowings`	$123.70M	USD	Point-in-time
Notes payable	`ShortTermBorrowings`	$133.80M	USD	Point-in-time
Notes payable	`ShortTermBorrowings`	$133.80M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	-	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	-	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$300.00M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$300.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$953.90M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$953.90M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$763.40M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$763.40M	USD	Point-in-time
Long-term debt, net of current maturities	`LongTermDebtNoncurrent`	$3.95B	USD	Point-in-time
Long-term debt, net of current maturities	`LongTermDebtNoncurrent`	$3.95B	USD	Point-in-time
Long-term debt, net of current maturities	`LongTermDebtNoncurrent`	$4.25B	USD	Point-in-time
Long-term debt, net of current maturities	`LongTermDebtNoncurrent`	$4.25B	USD	Point-in-time
Deferred income tax liabilities, net	`DeferredIncomeTaxLiabilitiesNet`	$625.10M	USD	Point-in-time
Deferred income tax liabilities, net	`DeferredIncomeTaxLiabilitiesNet`	$625.10M	USD	Point-in-time
Deferred income tax liabilities, net	`DeferredIncomeTaxLiabilitiesNet`	$674.00M	USD	Point-in-time
Deferred income tax liabilities, net	`DeferredIncomeTaxLiabilitiesNet`	$674.00M	USD	Point-in-time
Regulatory liabilities, non-current	`RegulatoryLiabilityNoncurrent`	$480.10M	USD	Point-in-time
Regulatory liabilities, non-current	`RegulatoryLiabilityNoncurrent`	$480.10M	USD	Point-in-time
Regulatory liabilities, non-current	`RegulatoryLiabilityNoncurrent`	$474.60M	USD	Point-in-time
Regulatory liabilities, non-current	`RegulatoryLiabilityNoncurrent`	$474.60M	USD	Point-in-time
Benefit plan liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$119.90M	USD	Point-in-time
Benefit plan liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$119.90M	USD	Point-in-time
Benefit plan liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$122.90M	USD	Point-in-time
Benefit plan liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$122.90M	USD	Point-in-time
Other deferred credits and other liabilities	`OtherLiabilitiesNoncurrent`	$201.20M	USD	Point-in-time
Other deferred credits and other liabilities	`OtherLiabilitiesNoncurrent`	$201.20M	USD	Point-in-time
Other deferred credits and other liabilities	`OtherLiabilitiesNoncurrent`	$191.90M	USD	Point-in-time
Other deferred credits and other liabilities	`OtherLiabilitiesNoncurrent`	$191.90M	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$1.42B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$1.42B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$1.47B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$1.47B	USD	Point-in-time
Commitments, contingencies and guarantees (Note 3)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments, contingencies and guarantees (Note 3)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments, contingencies and guarantees (Note 3)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments, contingencies and guarantees (Note 3)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock $1 par value; 100,000,000 shares authorized; issued 72,902,676 and 71,676,756 shares, respectively	`CommonStockValue`	$71.70M	USD	Point-in-time
Common stock $1 par value; 100,000,000 shares authorized; issued 72,902,676 and 71,676,756 shares, respectively	`CommonStockValue`	$71.70M	USD	Point-in-time
Common stock $1 par value; 100,000,000 shares authorized; issued 72,902,676 and 71,676,756 shares, respectively	`CommonStockValue`	$72.90M	USD	Point-in-time
Common stock $1 par value; 100,000,000 shares authorized; issued 72,902,676 and 71,676,756 shares, respectively	`CommonStockValue`	$72.90M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.19B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.19B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.26B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.26B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.25B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.25B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.31B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.31B	USD	Point-in-time
Treasury stock, at cost - 47,947 and 56,608 shares, respectively	`TreasuryStockValue`	$3.30M	USD	Point-in-time
Treasury stock, at cost - 47,947 and 56,608 shares, respectively	`TreasuryStockValue`	$3.30M	USD	Point-in-time
Treasury stock, at cost - 47,947 and 56,608 shares, respectively	`TreasuryStockValue`	$2.80M	USD	Point-in-time
Treasury stock, at cost - 47,947 and 56,608 shares, respectively	`TreasuryStockValue`	$2.80M	USD	Point-in-time
Accumulated other comprehensive (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-8.00M	USD	Point-in-time
Accumulated other comprehensive (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-8.00M	USD	Point-in-time
Accumulated other comprehensive (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-9.40M	USD	Point-in-time
Accumulated other comprehensive (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-9.40M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$3.64B	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$3.64B	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$3.50B	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$3.50B	USD	Point-in-time
Non-controlling interest	`NoncontrollingInterestInVariableInterestEntity`	$83.30M	USD	Point-in-time
Non-controlling interest	`NoncontrollingInterestInVariableInterestEntity`	$83.30M	USD	Point-in-time
Non-controlling interest	`NoncontrollingInterestInVariableInterestEntity`	$83.70M	USD	Point-in-time
Non-controlling interest	`NoncontrollingInterestInVariableInterestEntity`	$83.70M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.59B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.59B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.42B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.42B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.44B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.44B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.31B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.31B	USD	Point-in-time
TOTAL LIABILITIES AND TOTAL EQUITY	`LiabilitiesAndStockholdersEquity`	$10.02B	USD	Point-in-time
TOTAL LIABILITIES AND TOTAL EQUITY	`LiabilitiesAndStockholdersEquity`	$10.02B	USD	Point-in-time
TOTAL LIABILITIES AND TOTAL EQUITY	`LiabilitiesAndStockholdersEquity`	$10.09B	USD	Point-in-time
TOTAL LIABILITIES AND TOTAL EQUITY	`LiabilitiesAndStockholdersEquity`	$10.09B	USD	Point-in-time

Income Statement 164 line items

Line Item	Tag	Value	Unit	Period
Revenue	`Revenues`	$402.60M	USD	1 Quarter
Revenue	`Revenues`	$402.60M	USD	1 Quarter
Revenue	`Revenues`	$1.24B	USD	2 Qtrs
Revenue	`Revenues`	$1.24B	USD	2 Qtrs
Revenue	`Revenues`	$1.13B	USD	2 Qtrs
Revenue	`Revenues`	$1.13B	USD	2 Qtrs
Revenue	`Revenues`	$439.00M	USD	1 Quarter
Revenue	`Revenues`	$439.00M	USD	1 Quarter
Fuel, purchased power and cost of natural gas sold	`FuelPurchasedPowerAndCostOfGasSold`	$124.00M	USD	1 Quarter
Fuel, purchased power and cost of natural gas sold	`FuelPurchasedPowerAndCostOfGasSold`	$124.00M	USD	1 Quarter
Fuel, purchased power and cost of natural gas sold	`FuelPurchasedPowerAndCostOfGasSold`	$107.10M	USD	1 Quarter
Fuel, purchased power and cost of natural gas sold	`FuelPurchasedPowerAndCostOfGasSold`	$107.10M	USD	1 Quarter
Fuel, purchased power and cost of natural gas sold	`FuelPurchasedPowerAndCostOfGasSold`	$423.70M	USD	2 Qtrs
Fuel, purchased power and cost of natural gas sold	`FuelPurchasedPowerAndCostOfGasSold`	$423.70M	USD	2 Qtrs
Fuel, purchased power and cost of natural gas sold	`FuelPurchasedPowerAndCostOfGasSold`	$483.80M	USD	2 Qtrs
Fuel, purchased power and cost of natural gas sold	`FuelPurchasedPowerAndCostOfGasSold`	$483.80M	USD	2 Qtrs
Operations and maintenance	`OperatingExpenseMaintenanceOperationsandOtherCostsandExpense`	$147.60M	USD	1 Quarter
Operations and maintenance	`OperatingExpenseMaintenanceOperationsandOtherCostsandExpense`	$147.60M	USD	1 Quarter
Operations and maintenance	`OperatingExpenseMaintenanceOperationsandOtherCostsandExpense`	$141.70M	USD	1 Quarter
Operations and maintenance	`OperatingExpenseMaintenanceOperationsandOtherCostsandExpense`	$141.70M	USD	1 Quarter
Operations and maintenance	`OperatingExpenseMaintenanceOperationsandOtherCostsandExpense`	$275.20M	USD	2 Qtrs
Operations and maintenance	`OperatingExpenseMaintenanceOperationsandOtherCostsandExpense`	$275.20M	USD	2 Qtrs
Operations and maintenance	`OperatingExpenseMaintenanceOperationsandOtherCostsandExpense`	$301.30M	USD	2 Qtrs
Operations and maintenance	`OperatingExpenseMaintenanceOperationsandOtherCostsandExpense`	$301.30M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$132.50M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$132.50M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$69.80M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$69.80M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$139.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$139.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$66.60M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$66.60M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.10M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$15.10M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$33.60M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$33.60M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$32.70M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$32.70M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$16.60M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$16.60M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$356.50M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$356.50M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$332.00M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$332.00M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$865.00M	USD	2 Qtrs
Total operating expenses	`OperatingExpenses`	$865.00M	USD	2 Qtrs
Total operating expenses	`OperatingExpenses`	$956.80M	USD	2 Qtrs
Total operating expenses	`OperatingExpenses`	$956.80M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$82.50M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$82.50M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$264.00M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$264.00M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$287.40M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$287.40M	USD	2 Qtrs
Operating income	`OperatingIncomeLoss`	$70.60M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$70.60M	USD	1 Quarter
Interest expense incurred net of amounts capitalized	`InterestCostsIncurred`	$101.60M	USD	2 Qtrs
Interest expense incurred net of amounts capitalized	`InterestCostsIncurred`	$101.60M	USD	2 Qtrs
Interest expense incurred net of amounts capitalized	`InterestCostsIncurred`	$94.20M	USD	2 Qtrs
Interest expense incurred net of amounts capitalized	`InterestCostsIncurred`	$94.20M	USD	2 Qtrs
Interest expense incurred net of amounts capitalized	`InterestCostsIncurred`	$49.80M	USD	1 Quarter
Interest expense incurred net of amounts capitalized	`InterestCostsIncurred`	$49.80M	USD	1 Quarter
Interest expense incurred net of amounts capitalized	`InterestCostsIncurred`	$48.20M	USD	1 Quarter
Interest expense incurred net of amounts capitalized	`InterestCostsIncurred`	$48.20M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$7.50M	USD	2 Qtrs
Interest income	`InvestmentIncomeInterest`	$7.50M	USD	2 Qtrs
Interest income	`InvestmentIncomeInterest`	$5.60M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$5.60M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$1.30M	USD	2 Qtrs
Interest income	`InvestmentIncomeInterest`	$1.30M	USD	2 Qtrs
Interest income	`InvestmentIncomeInterest`	$900.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$900.00K	USD	1 Quarter
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$600.00K	USD	2 Qtrs
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$600.00K	USD	2 Qtrs
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$-500.00K	USD	2 Qtrs
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$-500.00K	USD	2 Qtrs
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$-400.00K	USD	1 Quarter
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$-400.00K	USD	1 Quarter
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$400.00K	USD	1 Quarter
Other income (expense), net	`OtherNonoperatingIncomeExpense`	$400.00K	USD	1 Quarter
Total other (expense)	`NonoperatingIncomeExpense`	$-99.70M	USD	2 Qtrs
Total other (expense)	`NonoperatingIncomeExpense`	$-99.70M	USD	2 Qtrs
Total other (expense)	`NonoperatingIncomeExpense`	$-49.30M	USD	1 Quarter
Total other (expense)	`NonoperatingIncomeExpense`	$-49.30M	USD	1 Quarter
Total other (expense)	`NonoperatingIncomeExpense`	$-87.20M	USD	2 Qtrs
Total other (expense)	`NonoperatingIncomeExpense`	$-87.20M	USD	2 Qtrs
Total other (expense)	`NonoperatingIncomeExpense`	$-42.20M	USD	1 Quarter
Total other (expense)	`NonoperatingIncomeExpense`	$-42.20M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$33.20M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$33.20M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$187.70M	USD	2 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$187.70M	USD	2 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$28.40M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$28.40M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$176.80M	USD	2 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$176.80M	USD	2 Qtrs
Income tax (expense)	`IncomeTaxExpenseBenefit`	$20.60M	USD	2 Qtrs
Income tax (expense)	`IncomeTaxExpenseBenefit`	$20.60M	USD	2 Qtrs
Income tax (expense)	`IncomeTaxExpenseBenefit`	$22.50M	USD	2 Qtrs
Income tax (expense)	`IncomeTaxExpenseBenefit`	$22.50M	USD	2 Qtrs
Income tax (expense)	`IncomeTaxExpenseBenefit`	$4.40M	USD	1 Quarter
Income tax (expense)	`IncomeTaxExpenseBenefit`	$4.40M	USD	1 Quarter
Income tax (expense)	`IncomeTaxExpenseBenefit`	$3.70M	USD	1 Quarter
Income tax (expense)	`IncomeTaxExpenseBenefit`	$3.70M	USD	1 Quarter
Net income	`ProfitLoss`	$156.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$156.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$28.80M	USD	1 Quarter
Net income	`ProfitLoss`	$28.80M	USD	1 Quarter
Net income	`ProfitLoss`	$24.70M	USD	1 Quarter
Net income	`ProfitLoss`	$24.70M	USD	1 Quarter
Net income	`ProfitLoss`	$131.60M	USD	1 Quarter
Net income	`ProfitLoss`	$131.60M	USD	1 Quarter
Net income	`ProfitLoss`	$136.40M	USD	1 Quarter
Net income	`ProfitLoss`	$136.40M	USD	1 Quarter
Net income	`ProfitLoss`	$165.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$165.20M	USD	2 Qtrs
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.30M	USD	1 Quarter
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.30M	USD	1 Quarter
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.50M	USD	2 Qtrs
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.50M	USD	2 Qtrs
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.90M	USD	1 Quarter
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.90M	USD	1 Quarter
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.60M	USD	2 Qtrs
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.60M	USD	2 Qtrs
Net income available for common stock	`NetIncomeLoss`	$22.80M	USD	1 Quarter
Net income available for common stock	`NetIncomeLoss`	$22.80M	USD	1 Quarter
Net income available for common stock	`NetIncomeLoss`	$150.60M	USD	2 Qtrs
Net income available for common stock	`NetIncomeLoss`	$150.60M	USD	2 Qtrs
Net income available for common stock	`NetIncomeLoss`	$161.70M	USD	2 Qtrs
Net income available for common stock	`NetIncomeLoss`	$161.70M	USD	2 Qtrs
Net income available for common stock	`NetIncomeLoss`	$27.50M	USD	1 Quarter
Net income available for common stock	`NetIncomeLoss`	$27.50M	USD	1 Quarter
Earnings per share, Basic (usd per share)	`EarningsPerShareBasic`	$0.33	USD	1 Quarter
Earnings per share, Basic (usd per share)	`EarningsPerShareBasic`	$0.33	USD	1 Quarter
Earnings per share, Basic (usd per share)	`EarningsPerShareBasic`	$2.25	USD	2 Qtrs
Earnings per share, Basic (usd per share)	`EarningsPerShareBasic`	$2.25	USD	2 Qtrs
Earnings per share, Basic (usd per share)	`EarningsPerShareBasic`	$2.20	USD	2 Qtrs
Earnings per share, Basic (usd per share)	`EarningsPerShareBasic`	$2.20	USD	2 Qtrs
Earnings per share, Basic (usd per share)	`EarningsPerShareBasic`	$0.38	USD	1 Quarter
Earnings per share, Basic (usd per share)	`EarningsPerShareBasic`	$0.38	USD	1 Quarter
Earnings per share, Diluted (usd per share)	`EarningsPerShareDiluted`	$2.19	USD	2 Qtrs
Earnings per share, Diluted (usd per share)	`EarningsPerShareDiluted`	$2.19	USD	2 Qtrs
Earnings per share, Diluted (usd per share)	`EarningsPerShareDiluted`	$2.24	USD	2 Qtrs
Earnings per share, Diluted (usd per share)	`EarningsPerShareDiluted`	$2.24	USD	2 Qtrs
Earnings per share, Diluted (usd per share)	`EarningsPerShareDiluted`	$0.33	USD	1 Quarter
Earnings per share, Diluted (usd per share)	`EarningsPerShareDiluted`	$0.33	USD	1 Quarter
Earnings per share, Diluted (usd per share)	`EarningsPerShareDiluted`	$0.38	USD	1 Quarter
Earnings per share, Diluted (usd per share)	`EarningsPerShareDiluted`	$0.38	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	72.40M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	72.40M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	68.60M	shares	2 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	68.60M	shares	2 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	69.00M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	69.00M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	72.00M	shares	2 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	72.00M	shares	2 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	72.10M	shares	2 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	72.10M	shares	2 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	72.40M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	72.40M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	69.00M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	69.00M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	68.70M	shares	2 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	68.70M	shares	2 Qtrs

Cash Flow Statement 136 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$156.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$156.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$28.80M	USD	1 Quarter
Net income	`ProfitLoss`	$28.80M	USD	1 Quarter
Net income	`ProfitLoss`	$24.70M	USD	1 Quarter
Net income	`ProfitLoss`	$24.70M	USD	1 Quarter
Net income	`ProfitLoss`	$131.60M	USD	1 Quarter
Net income	`ProfitLoss`	$131.60M	USD	1 Quarter
Net income	`ProfitLoss`	$136.40M	USD	1 Quarter
Net income	`ProfitLoss`	$136.40M	USD	1 Quarter
Net income	`ProfitLoss`	$165.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$165.20M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$132.50M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$132.50M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$69.80M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$69.80M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$139.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$139.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$66.60M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$66.60M	USD	1 Quarter
Deferred financing cost amortization	`AmortizationOfFinancingCostsAndDiscounts`	$4.30M	USD	2 Qtrs
Deferred financing cost amortization	`AmortizationOfFinancingCostsAndDiscounts`	$4.30M	USD	2 Qtrs
Deferred financing cost amortization	`AmortizationOfFinancingCostsAndDiscounts`	$5.50M	USD	2 Qtrs
Deferred financing cost amortization	`AmortizationOfFinancingCostsAndDiscounts`	$5.50M	USD	2 Qtrs
Stock compensation	`ShareBasedCompensation`	$5.40M	USD	2 Qtrs
Stock compensation	`ShareBasedCompensation`	$5.40M	USD	2 Qtrs
Stock compensation	`ShareBasedCompensation`	$5.70M	USD	2 Qtrs
Stock compensation	`ShareBasedCompensation`	$5.70M	USD	2 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$36.60M	USD	2 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$36.60M	USD	2 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$37.50M	USD	2 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$37.50M	USD	2 Qtrs
Employee benefit plans	`PensionAndOtherPostretirementBenefitExpense`	$5.60M	USD	2 Qtrs
Employee benefit plans	`PensionAndOtherPostretirementBenefitExpense`	$5.60M	USD	2 Qtrs
Employee benefit plans	`PensionAndOtherPostretirementBenefitExpense`	$5.60M	USD	2 Qtrs
Employee benefit plans	`PensionAndOtherPostretirementBenefitExpense`	$5.60M	USD	2 Qtrs
Other adjustments, net	`OtherNoncashIncomeExpense`	$-2.90M	USD	2 Qtrs
Other adjustments, net	`OtherNoncashIncomeExpense`	$-2.90M	USD	2 Qtrs
Other adjustments, net	`OtherNoncashIncomeExpense`	$4.00M	USD	2 Qtrs
Other adjustments, net	`OtherNoncashIncomeExpense`	$4.00M	USD	2 Qtrs
Materials, supplies and fuel	`IncreaseDecreaseInInventories`	$-8.40M	USD	2 Qtrs
Materials, supplies and fuel	`IncreaseDecreaseInInventories`	$-8.40M	USD	2 Qtrs
Materials, supplies and fuel	`IncreaseDecreaseInInventories`	$-29.00M	USD	2 Qtrs
Materials, supplies and fuel	`IncreaseDecreaseInInventories`	$-29.00M	USD	2 Qtrs
Accounts receivable and other current assets	`IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets`	$-117.10M	USD	2 Qtrs
Accounts receivable and other current assets	`IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets`	$-117.10M	USD	2 Qtrs
Accounts receivable and other current assets	`IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets`	$-84.80M	USD	2 Qtrs
Accounts receivable and other current assets	`IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets`	$-84.80M	USD	2 Qtrs
Accounts payable and other current liabilities	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$-77.40M	USD	2 Qtrs
Accounts payable and other current liabilities	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$-77.40M	USD	2 Qtrs
Accounts payable and other current liabilities	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$-93.30M	USD	2 Qtrs
Accounts payable and other current liabilities	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$-93.30M	USD	2 Qtrs
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-69.80M	USD	2 Qtrs
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-69.80M	USD	2 Qtrs
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-57.90M	USD	2 Qtrs
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-57.90M	USD	2 Qtrs
Other operating activities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$1.60M	USD	2 Qtrs
Other operating activities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$1.60M	USD	2 Qtrs
Other operating activities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$12.30M	USD	2 Qtrs
Other operating activities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$12.30M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$416.40M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$416.40M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$464.00M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$464.00M	USD	2 Qtrs
Property, plant and equipment additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$371.80M	USD	2 Qtrs
Property, plant and equipment additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$371.80M	USD	2 Qtrs
Property, plant and equipment additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$342.40M	USD	2 Qtrs
Property, plant and equipment additions	`PaymentsToAcquirePropertyPlantAndEquipment`	$342.40M	USD	2 Qtrs
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-1.70M	USD	2 Qtrs
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-1.70M	USD	2 Qtrs
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$4.40M	USD	2 Qtrs
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$4.40M	USD	2 Qtrs
Net cash (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-340.70M	USD	2 Qtrs
Net cash (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-340.70M	USD	2 Qtrs
Net cash (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-376.20M	USD	2 Qtrs
Net cash (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-376.20M	USD	2 Qtrs
Dividends paid on common stock	`PaymentsOfDividends`	$89.30M	USD	2 Qtrs
Dividends paid on common stock	`PaymentsOfDividends`	$89.30M	USD	2 Qtrs
Dividends paid on common stock	`PaymentsOfDividends`	$97.60M	USD	2 Qtrs
Dividends paid on common stock	`PaymentsOfDividends`	$97.60M	USD	2 Qtrs
Common stock issued	`ProceedsFromIssuanceOfCommonStock`	$73.00M	USD	2 Qtrs
Common stock issued	`ProceedsFromIssuanceOfCommonStock`	$73.00M	USD	2 Qtrs
Common stock issued	`ProceedsFromIssuanceOfCommonStock`	$65.00M	USD	2 Qtrs
Common stock issued	`ProceedsFromIssuanceOfCommonStock`	$65.00M	USD	2 Qtrs
Net borrowings (payments) of Revolving Credit Facility and CP Program	`NetPaymentsBorrowingsOfRevolvingCreditFacilityAndCommercialPaperProgram`	$-10.10M	USD	2 Qtrs
Net borrowings (payments) of Revolving Credit Facility and CP Program	`NetPaymentsBorrowingsOfRevolvingCreditFacilityAndCommercialPaperProgram`	$-10.10M	USD	2 Qtrs
Net borrowings (payments) of Revolving Credit Facility and CP Program	`NetPaymentsBorrowingsOfRevolvingCreditFacilityAndCommercialPaperProgram`	-	USD	2 Qtrs
Net borrowings (payments) of Revolving Credit Facility and CP Program	`NetPaymentsBorrowingsOfRevolvingCreditFacilityAndCommercialPaperProgram`	-	USD	2 Qtrs
Long-term debt - issuance	`ProceedsFromIssuanceOfLongTermDebt`	$450.00M	USD	2 Qtrs
Long-term debt - issuance	`ProceedsFromIssuanceOfLongTermDebt`	$450.00M	USD	2 Qtrs
Long-term debt - issuance	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	2 Qtrs
Long-term debt - issuance	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	2 Qtrs
Distributions to non-controlling interests	`PaymentsToMinorityShareholders`	$10.00M	USD	2 Qtrs
Distributions to non-controlling interests	`PaymentsToMinorityShareholders`	$10.00M	USD	2 Qtrs
Distributions to non-controlling interests	`PaymentsToMinorityShareholders`	$3.80M	USD	2 Qtrs
Distributions to non-controlling interests	`PaymentsToMinorityShareholders`	$3.80M	USD	2 Qtrs
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.30M	USD	2 Qtrs
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.30M	USD	2 Qtrs
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-8.30M	USD	2 Qtrs
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-8.30M	USD	2 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-47.80M	USD	2 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-47.80M	USD	2 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$415.40M	USD	2 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$415.40M	USD	2 Qtrs
Net change in cash, restricted cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-7.60M	USD	2 Qtrs
Net change in cash, restricted cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-7.60M	USD	2 Qtrs
Net change in cash, restricted cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$538.70M	USD	2 Qtrs
Net change in cash, restricted cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$538.70M	USD	2 Qtrs
Cash, restricted cash and cash equivalents beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$631.70M	USD	Point-in-time
Cash, restricted cash and cash equivalents beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$631.70M	USD	Point-in-time
Cash, restricted cash and cash equivalents beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$93.00M	USD	Point-in-time
Cash, restricted cash and cash equivalents beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$93.00M	USD	Point-in-time
Cash, restricted cash and cash equivalents beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$23.40M	USD	Point-in-time
Cash, restricted cash and cash equivalents beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$23.40M	USD	Point-in-time
Cash, restricted cash and cash equivalents beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$15.80M	USD	Point-in-time
Cash, restricted cash and cash equivalents beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$15.80M	USD	Point-in-time
Cash, restricted cash and cash equivalents end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$631.70M	USD	Point-in-time
Cash, restricted cash and cash equivalents end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$631.70M	USD	Point-in-time
Cash, restricted cash and cash equivalents end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$93.00M	USD	Point-in-time
Cash, restricted cash and cash equivalents end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$93.00M	USD	Point-in-time
Cash, restricted cash and cash equivalents end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$23.40M	USD	Point-in-time
Cash, restricted cash and cash equivalents end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$23.40M	USD	Point-in-time
Cash, restricted cash and cash equivalents end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$15.80M	USD	Point-in-time
Cash, restricted cash and cash equivalents end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$15.80M	USD	Point-in-time
Interest (net of amounts capitalized)	`InterestPaidNet`	$89.50M	USD	2 Qtrs
Interest (net of amounts capitalized)	`InterestPaidNet`	$89.50M	USD	2 Qtrs
Interest (net of amounts capitalized)	`InterestPaidNet`	$100.80M	USD	2 Qtrs
Interest (net of amounts capitalized)	`InterestPaidNet`	$100.80M	USD	2 Qtrs
Income taxes, net of transferred tax credits (Note 11)	`IncomeTaxesPaidNet`	$-13.90M	USD	2 Qtrs
Income taxes, net of transferred tax credits (Note 11)	`IncomeTaxesPaidNet`	$-13.90M	USD	2 Qtrs
Income taxes, net of transferred tax credits (Note 11)	`IncomeTaxesPaidNet`	$-14.70M	USD	2 Qtrs
Income taxes, net of transferred tax credits (Note 11)	`IncomeTaxesPaidNet`	$-14.70M	USD	2 Qtrs
Accrued property, plant, and equipment purchases at June 30,	`CapitalExpendituresIncurredButNotYetPaid`	$78.50M	USD	2 Qtrs
Accrued property, plant, and equipment purchases at June 30,	`CapitalExpendituresIncurredButNotYetPaid`	$78.50M	USD	2 Qtrs
Accrued property, plant, and equipment purchases at June 30,	`CapitalExpendituresIncurredButNotYetPaid`	$73.00M	USD	2 Qtrs
Accrued property, plant, and equipment purchases at June 30,	`CapitalExpendituresIncurredButNotYetPaid`	$73.00M	USD	2 Qtrs

Stockholders Equity 102 line items

Line Item	Tag	Value	Unit	Period
Dividends on common stock (usd per share)	`CommonStockDividendsPerShareCashPaid`	$0.65	USD	1 Quarter
Dividends on common stock (usd per share)	`CommonStockDividendsPerShareCashPaid`	$0.65	USD	1 Quarter
Dividends on common stock (usd per share)	`CommonStockDividendsPerShareCashPaid`	$0.68	USD	1 Quarter
Dividends on common stock (usd per share)	`CommonStockDividendsPerShareCashPaid`	$0.68	USD	1 Quarter
Dividends on common stock (usd per share)	`CommonStockDividendsPerShareCashPaid`	$0.65	USD	1 Quarter
Dividends on common stock (usd per share)	`CommonStockDividendsPerShareCashPaid`	$0.65	USD	1 Quarter
Dividends on common stock (usd per share)	`CommonStockDividendsPerShareCashPaid`	$0.68	USD	1 Quarter
Dividends on common stock (usd per share)	`CommonStockDividendsPerShareCashPaid`	$0.68	USD	1 Quarter
Beginning balance (in shares)	`TreasuryStockCommonShares`	47,947.00	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	47,947.00	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	56,608.00	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	56,608.00	shares	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.59B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.59B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.42B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.42B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.44B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.44B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.31B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.31B	USD	Point-in-time
Net income	`ProfitLoss`	$156.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$156.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$28.80M	USD	1 Quarter
Net income	`ProfitLoss`	$28.80M	USD	1 Quarter
Net income	`ProfitLoss`	$24.70M	USD	1 Quarter
Net income	`ProfitLoss`	$24.70M	USD	1 Quarter
Net income	`ProfitLoss`	$131.60M	USD	1 Quarter
Net income	`ProfitLoss`	$131.60M	USD	1 Quarter
Net income	`ProfitLoss`	$136.40M	USD	1 Quarter
Net income	`ProfitLoss`	$136.40M	USD	1 Quarter
Net income	`ProfitLoss`	$165.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$165.20M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.50M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.50M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$400.00K	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$400.00K	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.40M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.40M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.50M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.50M	USD	1 Quarter
Dividends on common stock	`DividendsCommonStockCash`	$44.40M	USD	1 Quarter
Dividends on common stock	`DividendsCommonStockCash`	$44.40M	USD	1 Quarter
Dividends on common stock	`DividendsCommonStockCash`	$44.90M	USD	1 Quarter
Dividends on common stock	`DividendsCommonStockCash`	$44.90M	USD	1 Quarter
Dividends on common stock	`DividendsCommonStockCash`	$49.00M	USD	1 Quarter
Dividends on common stock	`DividendsCommonStockCash`	$49.00M	USD	1 Quarter
Dividends on common stock	`DividendsCommonStockCash`	$48.60M	USD	1 Quarter
Dividends on common stock	`DividendsCommonStockCash`	$48.60M	USD	1 Quarter
Share-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$1.40M	USD	1 Quarter
Share-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$1.40M	USD	1 Quarter
Share-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$2.70M	USD	1 Quarter
Share-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$2.70M	USD	1 Quarter
Share-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$2.70M	USD	1 Quarter
Share-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$2.70M	USD	1 Quarter
Share-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$1.30M	USD	1 Quarter
Share-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$1.30M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$19.70M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$19.70M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$31.50M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$31.50M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$46.10M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$46.10M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$42.20M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$42.20M	USD	1 Quarter
Issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$500.00K	USD	1 Quarter
Issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$500.00K	USD	1 Quarter
Issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$300.00K	USD	1 Quarter
Issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$300.00K	USD	1 Quarter
Issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$300.00K	USD	1 Quarter
Issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$300.00K	USD	1 Quarter
Issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$400.00K	USD	1 Quarter
Issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$400.00K	USD	1 Quarter
Distributions to non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$3.80M	USD	1 Quarter
Distributions to non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$3.80M	USD	1 Quarter
Distributions to non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$4.40M	USD	1 Quarter
Distributions to non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$4.40M	USD	1 Quarter
Distributions to non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$5.60M	USD	1 Quarter
Distributions to non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$5.60M	USD	1 Quarter
Ending balance (in shares)	`TreasuryStockCommonShares`	47,947.00	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	47,947.00	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	56,608.00	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	56,608.00	shares	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.72B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.59B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.59B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.42B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.42B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.44B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.44B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.31B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.31B	USD	Point-in-time

Comprehensive Income 72 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$156.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$156.20M	USD	2 Qtrs
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	-	USD	1 Quarter
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	-	USD	1 Quarter
Net income	`ProfitLoss`	$28.80M	USD	1 Quarter
Net income	`ProfitLoss`	$28.80M	USD	1 Quarter
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	-	USD	2 Qtrs
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	-	USD	2 Qtrs
Net income	`ProfitLoss`	$24.70M	USD	1 Quarter
Net income	`ProfitLoss`	$24.70M	USD	1 Quarter
Net income	`ProfitLoss`	$131.60M	USD	1 Quarter
Net income	`ProfitLoss`	$131.60M	USD	1 Quarter
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	-	USD	2 Qtrs
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	-	USD	2 Qtrs
Net income	`ProfitLoss`	$136.40M	USD	1 Quarter
Net income	`ProfitLoss`	$136.40M	USD	1 Quarter
Net income	`ProfitLoss`	$165.20M	USD	2 Qtrs
Net income	`ProfitLoss`	$165.20M	USD	2 Qtrs
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	-	USD	1 Quarter
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	-	USD	1 Quarter
Reclassification adjustments of benefit plan liability - net loss (net of tax of $0.0, $0.0, $0.0 and $0.0, respectively)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$100.00K	USD	2 Qtrs
Reclassification adjustments of benefit plan liability - net loss (net of tax of $0.0, $0.0, $0.0 and $0.0, respectively)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$100.00K	USD	2 Qtrs
Reclassification adjustments of benefit plan liability - net loss (net of tax of $0.0, $0.0, $0.0 and $0.0, respectively)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	-	USD	1 Quarter
Reclassification adjustments of benefit plan liability - net loss (net of tax of $0.0, $0.0, $0.0 and $0.0, respectively)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	-	USD	1 Quarter
Reclassification adjustments of benefit plan liability - net loss (net of tax of $0.0, $0.0, $0.0 and $0.0, respectively)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$100.00K	USD	2 Qtrs
Reclassification adjustments of benefit plan liability - net loss (net of tax of $0.0, $0.0, $0.0 and $0.0, respectively)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$100.00K	USD	2 Qtrs
Reclassification adjustments of benefit plan liability - net loss (net of tax of $0.0, $0.0, $0.0 and $0.0, respectively)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	-	USD	1 Quarter
Reclassification adjustments of benefit plan liability - net loss (net of tax of $0.0, $0.0, $0.0 and $0.0, respectively)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	-	USD	1 Quarter
Net unrealized gains (losses) on commodity derivatives (net of tax of $0.1, $0.0, $0.1, and $0.0, respectively)	`OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTax`	$300.00K	USD	1 Quarter
Net unrealized gains (losses) on commodity derivatives (net of tax of $0.1, $0.0, $0.1, and $0.0, respectively)	`OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTax`	$300.00K	USD	1 Quarter
Net unrealized gains (losses) on commodity derivatives (net of tax of $0.1, $0.0, $0.1, and $0.0, respectively)	`OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTax`	$200.00K	USD	2 Qtrs
Net unrealized gains (losses) on commodity derivatives (net of tax of $0.1, $0.0, $0.1, and $0.0, respectively)	`OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTax`	$200.00K	USD	2 Qtrs
Net unrealized gains (losses) on commodity derivatives (net of tax of $0.1, $0.0, $0.1, and $0.0, respectively)	`OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTax`	-	USD	1 Quarter
Net unrealized gains (losses) on commodity derivatives (net of tax of $0.1, $0.0, $0.1, and $0.0, respectively)	`OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTax`	-	USD	1 Quarter
Net unrealized gains (losses) on commodity derivatives (net of tax of $0.1, $0.0, $0.1, and $0.0, respectively)	`OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTax`	$200.00K	USD	2 Qtrs
Net unrealized gains (losses) on commodity derivatives (net of tax of $0.1, $0.0, $0.1, and $0.0, respectively)	`OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTax`	$200.00K	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.50M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.50M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$400.00K	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$400.00K	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.40M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.40M	USD	2 Qtrs
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.50M	USD	1 Quarter
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.50M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$166.60M	USD	2 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$166.60M	USD	2 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$29.20M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$29.20M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$159.70M	USD	2 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$159.70M	USD	2 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$25.70M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$25.70M	USD	1 Quarter
Less: comprehensive income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.30M	USD	1 Quarter
Less: comprehensive income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.30M	USD	1 Quarter
Less: comprehensive income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.50M	USD	2 Qtrs
Less: comprehensive income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.50M	USD	2 Qtrs
Less: comprehensive income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.90M	USD	1 Quarter
Less: comprehensive income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.90M	USD	1 Quarter
Less: comprehensive income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.60M	USD	2 Qtrs
Less: comprehensive income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.60M	USD	2 Qtrs
Comprehensive income available for common stock	`ComprehensiveIncomeNetOfTax`	$23.80M	USD	1 Quarter
Comprehensive income available for common stock	`ComprehensiveIncomeNetOfTax`	$23.80M	USD	1 Quarter
Comprehensive income available for common stock	`ComprehensiveIncomeNetOfTax`	$27.90M	USD	1 Quarter
Comprehensive income available for common stock	`ComprehensiveIncomeNetOfTax`	$27.90M	USD	1 Quarter
Comprehensive income available for common stock	`ComprehensiveIncomeNetOfTax`	$163.10M	USD	2 Qtrs
Comprehensive income available for common stock	`ComprehensiveIncomeNetOfTax`	$163.10M	USD	2 Qtrs
Comprehensive income available for common stock	`ComprehensiveIncomeNetOfTax`	$154.10M	USD	2 Qtrs
Comprehensive income available for common stock	`ComprehensiveIncomeNetOfTax`	$154.10M	USD	2 Qtrs

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