10-K Filing

NATIONAL FUEL GAS CO CIK: 70145 FY 2018

Filing Information

Form Type	10-K
Accession Number	`0000070145-18-000022`
Period End Date	20180930
Filing Date	20181116
Fiscal Year	2018
Fiscal Period	FY
XBRL Instance	nfg-20180930.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 118 Income Statement 108 Cash Flow Statement 121 Comprehensive Income 59

Balance Sheet 118 line items

Line Item	Tag	Value	Unit	Period
Receivables, Allowance for Uncollectible Accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$22.53M	USD	Point-in-time
Receivables, Allowance for Uncollectible Accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$24.54M	USD	Point-in-time
Property, Plant and Equipment	`PropertyPlantAndEquipmentGross`	$10.44B	USD	Point-in-time
Common Stock, Par Value	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common Stock, Par Value	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Property, Plant and Equipment	`PropertyPlantAndEquipmentGross`	$9.95B	USD	Point-in-time
Common Stock, Shares Authorized	`CommonStockSharesAuthorized`	200.00M	shares	Point-in-time
Less - Accumulated Depreciation, Depletion and Amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$5.46B	USD	Point-in-time
Less - Accumulated Depreciation, Depletion and Amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$5.27B	USD	Point-in-time
Common Stock, Shares Authorized	`CommonStockSharesAuthorized`	200.00M	shares	Point-in-time
Common Stock, Shares Issued	`CommonStockSharesIssued`	85.54M	shares	Point-in-time
Common Stock, Shares Issued	`CommonStockSharesIssued`	85.96M	shares	Point-in-time
Property, Plant and Equipment, Net, Total	`PropertyPlantAndEquipmentNet`	$4.67B	USD	Point-in-time
Property, Plant and Equipment, Net, Total	`PropertyPlantAndEquipmentNet`	$4.98B	USD	Point-in-time
Common Stock, Shares Outstanding	`CommonStockSharesOutstanding`	85.54M	shares	Point-in-time
Common Stock, Shares Outstanding	`CommonStockSharesOutstanding`	85.96M	shares	Point-in-time
Cash and Temporary Cash Investments	`CashAndCashEquivalentsAtCarryingValue`	$229.61M	USD	Point-in-time
Cash and Temporary Cash Investments	`CashAndCashEquivalentsAtCarryingValue`	$555.53M	USD	Point-in-time
Cash and Temporary Cash Investments	`CashAndCashEquivalentsAtCarryingValue`	$129.97M	USD	Point-in-time
Cash and Temporary Cash Investments	`CashAndCashEquivalentsAtCarryingValue`	$113.60M	USD	Point-in-time
Hedging Collateral Deposits	`MarginDepositAssets`	$1.74M	USD	Point-in-time
Hedging Collateral Deposits	`MarginDepositAssets`	$3.44M	USD	Point-in-time
Receivables - Net of Allowance for Uncollectible Accounts of $24,537 and $22,526, Respectively	`ReceivablesNetCurrent`	$141.50M	USD	Point-in-time
Receivables - Net of Allowance for Uncollectible Accounts of $24,537 and $22,526, Respectively	`ReceivablesNetCurrent`	$112.38M	USD	Point-in-time
Unbilled Revenue	`AccountsReceivableGrossCurrent`	$22.88M	USD	Point-in-time
Unbilled Revenue	`AccountsReceivableGrossCurrent`	$24.18M	USD	Point-in-time
Gas Stored Underground	`EnergyRelatedInventoryGasStoredUnderground`	$37.81M	USD	Point-in-time
Gas Stored Underground	`EnergyRelatedInventoryGasStoredUnderground`	$35.69M	USD	Point-in-time
Materials and Supplies - at average cost	`InventoryRawMaterialsAndSupplies`	$35.82M	USD	Point-in-time
Materials and Supplies - at average cost	`InventoryRawMaterialsAndSupplies`	$33.93M	USD	Point-in-time
Unrecovered Purchased Gas Costs	`UnrecoveredCostsForPurchasedGasAmount`	$4.62M	USD	Point-in-time
Unrecovered Purchased Gas Costs	`UnrecoveredCostsForPurchasedGasAmount`	$4.20M	USD	Point-in-time
Other Current Assets	`OtherAssetsCurrent`	$51.51M	USD	Point-in-time
Other Current Assets	`OtherAssetsCurrent`	$68.02M	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$818.28M	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$544.59M	USD	Point-in-time
Recoverable Future Taxes	`RecoverableFutureTaxes`	$181.36M	USD	Point-in-time
Recoverable Future Taxes	`RecoverableFutureTaxes`	$115.46M	USD	Point-in-time
Unamortized Debt Expense	`UnamortizedLossReacquiredDebtNoncurrent`	$15.97M	USD	Point-in-time
Unamortized Debt Expense	`UnamortizedLossReacquiredDebtNoncurrent`	$1.16M	USD	Point-in-time
Other Regulatory Assets	`RegulatoryAssetsNoncurrent`	$112.92M	USD	Point-in-time
Other Regulatory Assets	`RegulatoryAssetsNoncurrent`	$174.43M	USD	Point-in-time
Deferred Charges	`DeferredCosts`	$40.02M	USD	Point-in-time
Deferred Charges	`DeferredCosts`	$30.05M	USD	Point-in-time
Other Investments	`OtherInvestmentsIncludingCsvLifeInsuranceAndAvailForSale`	$125.27M	USD	Point-in-time
Other Investments	`OtherInvestmentsIncludingCsvLifeInsuranceAndAvailForSale`	$132.54M	USD	Point-in-time
Goodwill	`Goodwill`	$5.48M	USD	Point-in-time
Goodwill	`Goodwill`	$5.48M	USD	Point-in-time
Prepaid Post-Retirement Benefit Costs	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$56.37M	USD	Point-in-time
Prepaid Post-Retirement Benefit Costs	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$82.73M	USD	Point-in-time
Fair Value of Derivative Financial Instruments	`DerivativeInstrumentsAndHedgesNoncurrent`	$9.52M	USD	Point-in-time
Fair Value of Derivative Financial Instruments	`DerivativeInstrumentsAndHedgesNoncurrent`	$36.11M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$102.00K	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$742.00K	USD	Point-in-time
Total Other Assets	`AssetsNoncurrent`	$514.75M	USD	Point-in-time
Total Other Assets	`AssetsNoncurrent`	$610.97M	USD	Point-in-time
Total Assets	`Assets`	$6.04B	USD	Point-in-time
Total Assets	`Assets`	$6.10B	USD	Point-in-time
Total Assets	`Assets`	$5.64B	USD	Point-in-time
Common Stock, $1 Par Value Authorized - 200,000,000 Shares; Issued and Outstanding - 85,956,814 Shares and 85,543,125 Shares, Respectively	`CommonStockValue`	$85.54M	USD	Point-in-time
Common Stock, $1 Par Value Authorized - 200,000,000 Shares; Issued and Outstanding - 85,956,814 Shares and 85,543,125 Shares, Respectively	`CommonStockValue`	$85.96M	USD	Point-in-time
Paid In Capital	`AdditionalPaidInCapital`	$820.22M	USD	Point-in-time
Paid In Capital	`AdditionalPaidInCapital`	$796.65M	USD	Point-in-time
Earnings Reinvested in the Business	`RetainedEarningsAccumulatedDeficit`	$1.10B	USD	Point-in-time
Earnings Reinvested in the Business	`RetainedEarningsAccumulatedDeficit`	$676.36M	USD	Point-in-time
Earnings Reinvested in the Business	`RetainedEarningsAccumulatedDeficit`	$851.67M	USD	Point-in-time
Earnings Reinvested in the Business	`RetainedEarningsAccumulatedDeficit`	$1.10B	USD	Point-in-time
Accumulated Other Comprehensive Loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-67.75M	USD	Point-in-time
Accumulated Other Comprehensive Loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-5.64M	USD	Point-in-time
Accumulated Other Comprehensive Loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-30.12M	USD	Point-in-time
Total Comprehensive Shareholders' Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.94B	USD	Point-in-time
Total Comprehensive Shareholders' Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.70B	USD	Point-in-time
Long-term Debt, Net of Current Portion and Unamortized Discount and Debt Issuance Costs	`LongTermDebtNoncurrent`	$2.08B	USD	Point-in-time
Long-term Debt, Net of Current Portion and Unamortized Discount and Debt Issuance Costs	`LongTermDebtNoncurrent`	$2.13B	USD	Point-in-time
Total Capitalization	`CapitalizationLongtermDebtAndEquity`	$3.79B	USD	Point-in-time
Total Capitalization	`CapitalizationLongtermDebtAndEquity`	$4.07B	USD	Point-in-time
Notes Payable to Banks and Commercial Paper	`ShortTermBorrowings`	-	USD	Point-in-time
Notes Payable to Banks and Commercial Paper	`ShortTermBorrowings`	-	USD	Point-in-time
Current Portion of Long-Term Debt	`LongTermDebtCurrent`	$300.00M	USD	Point-in-time
Current Portion of Long-Term Debt	`LongTermDebtCurrent`	-	USD	Point-in-time
Accounts Payable	`AccountsPayableCurrent`	$126.44M	USD	Point-in-time
Accounts Payable	`AccountsPayableCurrent`	$160.03M	USD	Point-in-time
Amounts Payable to Customers	`RefundableGasCosts`	-	USD	Point-in-time
Amounts Payable to Customers	`RefundableGasCosts`	$3.39M	USD	Point-in-time
Dividends Payable	`DividendsPayableCurrent`	$35.50M	USD	Point-in-time
Dividends Payable	`DividendsPayableCurrent`	$36.53M	USD	Point-in-time
Interest Payable on Long-Term Debt	`InterestPayableOnLongTermDebt`	$19.06M	USD	Point-in-time
Interest Payable on Long-Term Debt	`InterestPayableOnLongTermDebt`	$35.03M	USD	Point-in-time
Customer Advances	`CustomerAdvancesCurrent`	$15.70M	USD	Point-in-time
Customer Advances	`CustomerAdvancesCurrent`	$13.61M	USD	Point-in-time
Customer Security Deposits	`CustomerDepositsCurrent`	$20.37M	USD	Point-in-time
Customer Security Deposits	`CustomerDepositsCurrent`	$25.70M	USD	Point-in-time
Other Accruals and Current Liabilities	`AccruedLiabilitiesCurrent`	$111.89M	USD	Point-in-time
Other Accruals and Current Liabilities	`AccruedLiabilitiesCurrent`	$132.69M	USD	Point-in-time
Fair Value of Derivative Financial Instruments	`DerivativeInstrumentsAndHedgesLiabilities`	$1.10M	USD	Point-in-time
Fair Value of Derivative Financial Instruments	`DerivativeInstrumentsAndHedgesLiabilities`	$49.04M	USD	Point-in-time
Total Current and Accrued Liabilities	`LiabilitiesCurrent`	$646.04M	USD	Point-in-time
Total Current and Accrued Liabilities	`LiabilitiesCurrent`	$440.06M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$512.69M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$891.29M	USD	Point-in-time
Taxes Refundable to Customers	`TaxesRefundableToCustomers`	$95.74M	USD	Point-in-time
Taxes Refundable to Customers	`TaxesRefundableToCustomers`	$370.63M	USD	Point-in-time
Cost of Removal Regulatory Liability	`CostOfRemovalRegulatoryLiability`	$212.31M	USD	Point-in-time
Cost of Removal Regulatory Liability	`CostOfRemovalRegulatoryLiability`	$204.63M	USD	Point-in-time
Other Regulatory Liabilities	`RegulatoryLiabilityNoncurrent`	$113.72M	USD	Point-in-time
Other Regulatory Liabilities	`RegulatoryLiabilityNoncurrent`	$146.74M	USD	Point-in-time
Pension and Other Post-Retirement Liabilities	`PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent`	$149.08M	USD	Point-in-time
Pension and Other Post-Retirement Liabilities	`PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent`	$66.10M	USD	Point-in-time
Asset Retirement Obligations	`AssetRetirementObligationsNoncurrent`	$108.23M	USD	Point-in-time
Asset Retirement Obligations	`AssetRetirementObligationsNoncurrent`	$106.39M	USD	Point-in-time
Other Deferred Credits	`OtherDeferredCreditsNoncurrent`	$111.03M	USD	Point-in-time
Other Deferred Credits	`OtherDeferredCreditsNoncurrent`	$109.02M	USD	Point-in-time
Total Deferred Credits	`LiabilitiesNoncurrent`	$1.53B	USD	Point-in-time
Total Deferred Credits	`LiabilitiesNoncurrent`	$1.67B	USD	Point-in-time
Commitments and Contingencies (Note I)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies (Note I)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Total Capitalization and Liabilities	`LiabilitiesAndStockholdersEquity`	$6.04B	USD	Point-in-time
Total Capitalization and Liabilities	`LiabilitiesAndStockholdersEquity`	$6.10B	USD	Point-in-time

Income Statement 108 line items

Line Item	Tag	Value	Unit	Period
Operating Revenues	`Revenues`	$286.94M	USD	1 Quarter
Operating Revenues	`Revenues`	$522.08M	USD	1 Quarter
Operating Revenues	`Revenues`	$348.37M	USD	1 Quarter
Operating Revenues	`Revenues`	$1.58B	USD	Annual
Operating Revenues	`Revenues`	$342.91M	USD	1 Quarter
Operating Revenues	`Revenues`	$289.20M	USD	1 Quarter
Operating Revenues	`Revenues`	$1.45B	USD	Annual
Operating Revenues	`Revenues`	$419.65M	USD	1 Quarter
Operating Revenues	`Revenues`	$540.90M	USD	1 Quarter
Operating Revenues	`Revenues`	$422.50M	USD	1 Quarter
Operating Revenues	`Revenues`	$1.59B	USD	Annual
Property, Franchise and Other Taxes	`TaxesExcludingIncomeAndExciseTaxes`	$85.00M	USD	Annual
Property, Franchise and Other Taxes	`TaxesExcludingIncomeAndExciseTaxes`	$84.39M	USD	Annual
Property, Franchise and Other Taxes	`TaxesExcludingIncomeAndExciseTaxes`	$81.71M	USD	Annual
Depreciation, Depletion and Amortization	`DepreciationDepletionAndAmortization`	$224.19M	USD	Annual
Depreciation, Depletion and Amortization	`DepreciationDepletionAndAmortization`	$240.96M	USD	Annual
Depreciation, Depletion and Amortization	`DepreciationDepletionAndAmortization`	$249.42M	USD	Annual
Impairment of Oil and Gas Producing Properties	`ImpairmentofOilandGasProducingProperties`	$948.31M	USD	Annual
Impairment of Oil and Gas Producing Properties	`ImpairmentofOilandGasProducingProperties`	-	USD	Annual
Impairment of Oil and Gas Producing Properties	`ImpairmentofOilandGasProducingProperties`	-	USD	Annual
Total Operating Expenses	`OperatingExpenses`	$1.03B	USD	Annual
Total Operating Expenses	`OperatingExpenses`	$1.11B	USD	Annual
Total Operating Expenses	`OperatingExpenses`	$1.87B	USD	Annual
Operating Income (Loss)	`OperatingIncomeLoss`	$-416.52M	USD	Annual
Operating Income (Loss)	`OperatingIncomeLoss`	$142.00M	USD	1 Quarter
Operating Income (Loss)	`OperatingIncomeLoss`	$80.63M	USD	1 Quarter
Operating Income (Loss)	`OperatingIncomeLoss`	$487.09M	USD	Annual
Operating Income (Loss)	`OperatingIncomeLoss`	$107.76M	USD	1 Quarter
Operating Income (Loss)	`OperatingIncomeLoss`	$169.96M	USD	1 Quarter
Operating Income (Loss)	`OperatingIncomeLoss`	$172.14M	USD	1 Quarter
Operating Income (Loss)	`OperatingIncomeLoss`	$123.35M	USD	1 Quarter
Operating Income (Loss)	`OperatingIncomeLoss`	$87.39M	USD	1 Quarter
Operating Income (Loss)	`OperatingIncomeLoss`	$552.85M	USD	Annual
Operating Income (Loss)	`OperatingIncomeLoss`	$156.70M	USD	1 Quarter
Other Income	`OtherNonoperatingIncome`	$4.70M	USD	Annual
Other Income	`OtherNonoperatingIncome`	$7.04M	USD	Annual
Other Income	`OtherNonoperatingIncome`	$9.82M	USD	Annual
Interest Income	`InterestIncomeDomesticDeposits`	$4.11M	USD	Annual
Interest Income	`InterestIncomeDomesticDeposits`	$4.24M	USD	Annual
Interest Income	`InterestIncomeDomesticDeposits`	$6.77M	USD	Annual
Interest Expense on Long-Term Debt	`InterestExpenseLongTermDebt`	$110.95M	USD	Annual
Interest Expense on Long-Term Debt	`InterestExpenseLongTermDebt`	$117.35M	USD	Annual
Interest Expense on Long-Term Debt	`InterestExpenseLongTermDebt`	$116.47M	USD	Annual
Other Interest Expense	`InterestExpenseOther`	$3.70M	USD	Annual
Other Interest Expense	`InterestExpenseOther`	$3.37M	USD	Annual
Other Interest Expense	`InterestExpenseOther`	$3.58M	USD	Annual
Income (Loss) Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$444.16M	USD	Annual
Income (Loss) Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$384.03M	USD	Annual
Income (Loss) Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-523.51M	USD	Annual
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-232.55M	USD	Annual
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-7.49M	USD	Annual
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$160.68M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$59.71M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$91.85M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$88.91M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$89.28M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$63.02M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$283.48M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$391.52M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$45.58M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$-290.96M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$198.65M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$37.99M	USD	1 Quarter
Balance at Beginning of Year	`RetainedEarningsAccumulatedDeficit`	$1.10B	USD	Point-in-time
Balance at Beginning of Year	`RetainedEarningsAccumulatedDeficit`	$676.36M	USD	Point-in-time
Balance at Beginning of Year	`RetainedEarningsAccumulatedDeficit`	$851.67M	USD	Point-in-time
Balance at Beginning of Year	`RetainedEarningsAccumulatedDeficit`	$1.10B	USD	Point-in-time
Beginning Retained Earnings Unappropriated And Current Period Net Income Loss	`BeginningRetainedEarningsUnappropriatedAndCurrentPeriodNetIncomeLoss`	$812.24M	USD	Annual
Beginning Retained Earnings Unappropriated And Current Period Net Income Loss	`BeginningRetainedEarningsUnappropriatedAndCurrentPeriodNetIncomeLoss`	$959.84M	USD	Annual
Beginning Retained Earnings Unappropriated And Current Period Net Income Loss	`BeginningRetainedEarningsUnappropriatedAndCurrentPeriodNetIncomeLoss`	$1.24B	USD	Annual
Dividends on Common Stock	`DividendsCommonStockCash`	$144.29M	USD	Annual
Dividends on Common Stock	`DividendsCommonStockCash`	$135.88M	USD	Annual
Dividends on Common Stock	`DividendsCommonStockCash`	$140.09M	USD	Annual
Cumulative Effect of Adoption of Authoritative Guidance for Stock-Based Compensation	`IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple`	$31.92M	USD	Annual
Cumulative Effect of Adoption of Authoritative Guidance for Stock-Based Compensation	`IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple`	-	USD	Annual
Cumulative Effect of Adoption of Authoritative Guidance for Stock-Based Compensation	`IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple`	-	USD	Annual
Balance at End of Year	`RetainedEarningsAccumulatedDeficit`	$1.10B	USD	Point-in-time
Balance at End of Year	`RetainedEarningsAccumulatedDeficit`	$676.36M	USD	Point-in-time
Balance at End of Year	`RetainedEarningsAccumulatedDeficit`	$851.67M	USD	Point-in-time
Balance at End of Year	`RetainedEarningsAccumulatedDeficit`	$1.10B	USD	Point-in-time
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$0.73	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$1.04	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$1.05	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$0.44	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$0.70	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$-3.43	USD	Annual
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$3.32	USD	Annual
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$1.07	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$4.56	USD	Annual
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$2.32	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareBasic`	$0.53	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$1.04	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$1.06	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$4.53	USD	Annual
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$-3.43	USD	Annual
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$3.30	USD	Annual
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$0.44	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$1.04	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$0.53	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$0.73	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$0.69	USD	1 Quarter
Net Income (Loss) Available for Common Stock (in dollars per share)	`EarningsPerShareDiluted`	$2.30	USD	1 Quarter
Used in Basic Calculation	`WeightedAverageNumberOfSharesOutstandingBasic`	85.83M	shares	Annual
Used in Basic Calculation	`WeightedAverageNumberOfSharesOutstandingBasic`	85.36M	shares	Annual
Used in Basic Calculation	`WeightedAverageNumberOfSharesOutstandingBasic`	84.85M	shares	Annual
Used in Diluted Calculation	`WeightedAverageNumberOfDilutedSharesOutstanding`	86.02M	shares	Annual
Used in Diluted Calculation	`WeightedAverageNumberOfDilutedSharesOutstanding`	84.85M	shares	Annual
Used in Diluted Calculation	`WeightedAverageNumberOfDilutedSharesOutstanding`	86.44M	shares	Annual

Cash Flow Statement 121 line items

Line Item	Tag	Value	Unit	Period
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$59.71M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$91.85M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$88.91M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$89.28M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$63.02M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$283.48M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$391.52M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$45.58M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$-290.96M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$198.65M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$37.99M	USD	1 Quarter
Impairment of Oil and Gas Producing Properties	`ImpairmentofOilandGasProducingProperties`	$948.31M	USD	Annual
Impairment of Oil and Gas Producing Properties	`ImpairmentofOilandGasProducingProperties`	-	USD	Annual
Impairment of Oil and Gas Producing Properties	`ImpairmentofOilandGasProducingProperties`	-	USD	Annual
Depreciation, Depletion and Amortization	`DepreciationDepletionAndAmortization`	$224.19M	USD	Annual
Depreciation, Depletion and Amortization	`DepreciationDepletionAndAmortization`	$240.96M	USD	Annual
Depreciation, Depletion and Amortization	`DepreciationDepletionAndAmortization`	$249.42M	USD	Annual
Deferred Income Taxes	`DeferredIncomeTaxesAndTaxCredits`	$-18.15M	USD	Annual
Deferred Income Taxes	`DeferredIncomeTaxesAndTaxCredits`	$117.97M	USD	Annual
Deferred Income Taxes	`DeferredIncomeTaxesAndTaxCredits`	$-246.79M	USD	Annual
Excess Tax Benefits Associated with Stock-Based Compensation Awards	`ExcessTaxBenefitFromShareBasedCompensationOperatingActivities`	$1.87M	USD	Annual
Excess Tax Benefits Associated with Stock-Based Compensation Awards	`ExcessTaxBenefitFromShareBasedCompensationOperatingActivities`	-	USD	Annual
Excess Tax Benefits Associated with Stock-Based Compensation Awards	`ExcessTaxBenefitFromShareBasedCompensationOperatingActivities`	-	USD	Annual
Stock-Based Compensation	`ShareBasedCompensation`	$15.76M	USD	Annual
Stock-Based Compensation	`ShareBasedCompensation`	$5.75M	USD	Annual
Stock-Based Compensation	`ShareBasedCompensation`	$12.26M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-16.48M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-16.13M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-12.62M	USD	Annual
Hedging Collateral Deposits	`IncreaseDecreaseInMarginDepositsOutstanding`	$-9.64M	USD	Annual
Hedging Collateral Deposits	`IncreaseDecreaseInMarginDepositsOutstanding`	$1.70M	USD	Annual
Hedging Collateral Deposits	`IncreaseDecreaseInMarginDepositsOutstanding`	$257.00K	USD	Annual
Receivables and Unbilled Revenue	`IncreaseDecreaseInReceivables`	$3.38M	USD	Annual
Receivables and Unbilled Revenue	`IncreaseDecreaseInReceivables`	$6.41M	USD	Annual
Receivables and Unbilled Revenue	`IncreaseDecreaseInReceivables`	$30.88M	USD	Annual
Gas Stored Underground and Materials and Supplies	`IncreaseDecreaseInInventories`	$1.42M	USD	Annual
Gas Stored Underground and Materials and Supplies	`IncreaseDecreaseInInventories`	$4.02M	USD	Annual
Gas Stored Underground and Materials and Supplies	`IncreaseDecreaseInInventories`	$3.53M	USD	Annual
Unrecovered Purchased Gas Costs	`IncreaseDecreaseInDeferredGasCost`	$2.18M	USD	Annual
Unrecovered Purchased Gas Costs	`IncreaseDecreaseInDeferredGasCost`	$-419.00K	USD	Annual
Unrecovered Purchased Gas Costs	`IncreaseDecreaseInDeferredGasCost`	$2.44M	USD	Annual
Other Current Assets	`IncreaseDecreaseInOtherCurrentAssets`	$-3.18M	USD	Annual
Other Current Assets	`IncreaseDecreaseInOtherCurrentAssets`	$16.52M	USD	Annual
Other Current Assets	`IncreaseDecreaseInOtherCurrentAssets`	$-7.85M	USD	Annual
Accounts Payable	`IncreaseDecreaseInAccountsPayableTrade`	$17.19M	USD	Annual
Accounts Payable	`IncreaseDecreaseInAccountsPayableTrade`	$17.96M	USD	Annual
Accounts Payable	`IncreaseDecreaseInAccountsPayableTrade`	$-40.66M	USD	Annual
Amounts Payable to Customers	`IncreaseDecreaseInRegulatoryClauseRevenue`	$-37.24M	USD	Annual
Amounts Payable to Customers	`IncreaseDecreaseInRegulatoryClauseRevenue`	$3.39M	USD	Annual
Amounts Payable to Customers	`IncreaseDecreaseInRegulatoryClauseRevenue`	$-19.54M	USD	Annual
Customer Advances	`IncreaseDecreaseInCustomerAdvances`	$-1.47M	USD	Annual
Customer Advances	`IncreaseDecreaseInCustomerAdvances`	$-2.09M	USD	Annual
Customer Advances	`IncreaseDecreaseInCustomerAdvances`	$939.00K	USD	Annual
Customer Security Deposits	`IncreaseDecreaseInCustomerDeposits`	$-471.00K	USD	Annual
Customer Security Deposits	`IncreaseDecreaseInCustomerDeposits`	$4.35M	USD	Annual
Customer Security Deposits	`IncreaseDecreaseInCustomerDeposits`	$5.33M	USD	Annual
Other Accruals and Current Liabilities	`IncreaseDecreaseInAccruedLiabilities`	$3.45M	USD	Annual
Other Accruals and Current Liabilities	`IncreaseDecreaseInAccruedLiabilities`	$27.00M	USD	Annual
Other Accruals and Current Liabilities	`IncreaseDecreaseInAccruedLiabilities`	$3.87M	USD	Annual
Other Assets	`IncreaseDecreaseInOtherOperatingAssets`	$2.88M	USD	Annual
Other Assets	`IncreaseDecreaseInOtherOperatingAssets`	$9.56M	USD	Annual
Other Assets	`IncreaseDecreaseInOtherOperatingAssets`	$-1.94M	USD	Annual
Other Liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$1.18M	USD	Annual
Other Liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-13.48M	USD	Annual
Other Liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$2.18M	USD	Annual
Net Cash Provided by Operating Activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$684.25M	USD	Annual
Net Cash Provided by Operating Activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$613.60M	USD	Annual
Net Cash Provided by Operating Activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$588.98M	USD	Annual
Capital Expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$581.58M	USD	Annual
Capital Expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$450.33M	USD	Annual
Capital Expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$584.00M	USD	Annual
Net Proceeds from Sale of Oil and Gas Producing Properties	`ProceedsFromSaleOfOilAndGasPropertyAndEquipment`	$26.55M	USD	Annual
Net Proceeds from Sale of Oil and Gas Producing Properties	`ProceedsFromSaleOfOilAndGasPropertyAndEquipment`	$55.51M	USD	Annual
Net Proceeds from Sale of Oil and Gas Producing Properties	`ProceedsFromSaleOfOilAndGasPropertyAndEquipment`	$137.32M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-1.22M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$9.24M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$389.00K	USD	Annual
Net Cash Used in Investing Activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-453.50M	USD	Annual
Net Cash Used in Investing Activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-422.56M	USD	Annual
Net Cash Used in Investing Activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-528.89M	USD	Annual
Excess Tax Benefits Associated with Stock-Based Compensation Awards	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$1.87M	USD	Annual
Excess Tax Benefits Associated with Stock-Based Compensation Awards	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	-	USD	Annual
Excess Tax Benefits Associated with Stock-Based Compensation Awards	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	-	USD	Annual
Net Proceeds from Issuance of Long-Term Debt	`ProceedsFromIssuanceOfLongTermDebt`	$295.15M	USD	Annual
Net Proceeds from Issuance of Long-Term Debt	`ProceedsFromIssuanceOfLongTermDebt`	$295.02M	USD	Annual
Net Proceeds from Issuance of Long-Term Debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Reduction of Long-Term Debt	`RepaymentsOfLongTermDebt`	-	USD	Annual
Reduction of Long-Term Debt	`RepaymentsOfLongTermDebt`	$566.51M	USD	Annual
Reduction of Long-Term Debt	`RepaymentsOfLongTermDebt`	-	USD	Annual
Net Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOrSaleOfEquity`	$4.11M	USD	Annual
Net Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOrSaleOfEquity`	$7.78M	USD	Annual
Net Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOrSaleOfEquity`	$13.85M	USD	Annual
Dividends Paid on Common Stock	`PaymentsOfDividendsCommonStock`	$143.26M	USD	Annual
Dividends Paid on Common Stock	`PaymentsOfDividendsCommonStock`	$139.06M	USD	Annual
Dividends Paid on Common Stock	`PaymentsOfDividendsCommonStock`	$134.82M	USD	Annual
Net Cash Provided by (Used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$163.87M	USD	Annual
Net Cash Provided by (Used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-410.64M	USD	Annual
Net Cash Provided by (Used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-119.11M	USD	Annual
Net Increase (Decrease) in Cash and Temporary Cash Investments	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$16.38M	USD	Annual
Net Increase (Decrease) in Cash and Temporary Cash Investments	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$425.56M	USD	Annual
Net Increase (Decrease) in Cash and Temporary Cash Investments	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-325.92M	USD	Annual
Cash and Temporary Cash Investments At Beginning of Year	`CashAndCashEquivalentsAtCarryingValue`	$229.61M	USD	Point-in-time
Cash and Temporary Cash Investments At Beginning of Year	`CashAndCashEquivalentsAtCarryingValue`	$555.53M	USD	Point-in-time
Cash and Temporary Cash Investments At Beginning of Year	`CashAndCashEquivalentsAtCarryingValue`	$129.97M	USD	Point-in-time
Cash and Temporary Cash Investments At Beginning of Year	`CashAndCashEquivalentsAtCarryingValue`	$113.60M	USD	Point-in-time
Cash and Temporary Cash Investments At End of Year	`CashAndCashEquivalentsAtCarryingValue`	$229.61M	USD	Point-in-time
Cash and Temporary Cash Investments At End of Year	`CashAndCashEquivalentsAtCarryingValue`	$555.53M	USD	Point-in-time
Cash and Temporary Cash Investments At End of Year	`CashAndCashEquivalentsAtCarryingValue`	$129.97M	USD	Point-in-time
Cash and Temporary Cash Investments At End of Year	`CashAndCashEquivalentsAtCarryingValue`	$113.60M	USD	Point-in-time
Cash Paid for Interest	`InterestPaid`	$116.89M	USD	Annual
Cash Paid for Interest	`InterestPaid`	$126.08M	USD	Annual
Cash Paid for Interest	`InterestPaid`	$119.56M	USD	Annual
Cash Paid for Income Taxes	`IncomeTaxesPaidNet`	$31.77M	USD	Annual
Cash Paid for Income Taxes	`IncomeTaxesPaidNet`	$34.83M	USD	Annual
Cash Paid for Income Taxes	`IncomeTaxesPaidNet`	$34.24M	USD	Annual
Non-Cash Capital Expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$60.43M	USD	Annual
Non-Cash Capital Expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$88.81M	USD	Annual
Non-Cash Capital Expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$72.22M	USD	Annual
Receivable from Sale of Oil and Gas Producing Properties	`OtherSignificantNoncashTransactionValueOfConsiderationReceived1`	$19.54M	USD	Annual
Receivable from Sale of Oil and Gas Producing Properties	`OtherSignificantNoncashTransactionValueOfConsiderationReceived1`	-	USD	Annual
Receivable from Sale of Oil and Gas Producing Properties	`OtherSignificantNoncashTransactionValueOfConsiderationReceived1`	-	USD	Annual

Comprehensive Income 59 line items

Line Item	Tag	Value	Unit	Period
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$59.71M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$91.85M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$88.91M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$89.28M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$63.02M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$283.48M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$391.52M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$45.58M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$-290.96M	USD	Annual
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$198.65M	USD	1 Quarter
Net Income (Loss) Available for Common Stock	`NetIncomeLoss`	$37.99M	USD	1 Quarter
Increase (Decrease) in the Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax`	$-6.22M	USD	Annual
Increase (Decrease) in the Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax`	$21.38M	USD	Annual
Increase (Decrease) in the Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax`	$-15.66M	USD	Annual
Reclassification Adjustment for Amortization of Prior Year Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax`	$13.43M	USD	Annual
Reclassification Adjustment for Amortization of Prior Year Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax`	$9.70M	USD	Annual
Reclassification Adjustment for Amortization of Prior Year Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax`	$10.07M	USD	Annual
Unrealized Gain (Loss) on Securities Available for Sale Arising During the Period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$4.01M	USD	Annual
Unrealized Gain (Loss) on Securities Available for Sale Arising During the Period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$1.52M	USD	Annual
Unrealized Gain (Loss) on Securities Available for Sale Arising During the Period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$132.00K	USD	Annual
Unrealized Gain (Loss) on Derivative Financial Instruments Arising During the Period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-74.10M	USD	Annual
Unrealized Gain (Loss) on Derivative Financial Instruments Arising During the Period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$60.49M	USD	Annual
Unrealized Gain (Loss) on Derivative Financial Instruments Arising During the Period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$5.35M	USD	Annual
Reclassification Adjustment for Realized (Gains) Losses on Securities Available for Sale in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$1.57M	USD	Annual
Reclassification Adjustment for Realized (Gains) Losses on Securities Available for Sale in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$1.37M	USD	Annual
Reclassification Adjustment for Realized (Gains) Losses on Securities Available for Sale in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$430.00K	USD	Annual
Reclassification Adjustment for Realized (Gains) Losses on Derivative Financial Instruments in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax`	$220.92M	USD	Annual
Reclassification Adjustment for Realized (Gains) Losses on Derivative Financial Instruments in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax`	$-1.19M	USD	Annual
Reclassification Adjustment for Realized (Gains) Losses on Derivative Financial Instruments in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax`	$81.61M	USD	Annual
Other Comprehensive Income (Loss), Before Tax	`OtherComprehensiveIncomeLossBeforeTax`	$-171.59M	USD	Annual
Other Comprehensive Income (Loss), Before Tax	`OtherComprehensiveIncomeLossBeforeTax`	$-44.73M	USD	Annual
Other Comprehensive Income (Loss), Before Tax	`OtherComprehensiveIncomeLossBeforeTax`	$-57.28M	USD	Annual
Income Tax Expense (Benefit) Related to the Increase (Decrease) in the Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax`	$-1.58M	USD	Annual
Income Tax Expense (Benefit) Related to the Increase (Decrease) in the Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax`	$8.35M	USD	Annual
Income Tax Expense (Benefit) Related to the Increase (Decrease) in the Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax`	$-6.17M	USD	Annual
Reclassification Adjustment for Income Tax Benefit Related to the Amortization of the Prior Year Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	$2.44M	USD	Annual
Reclassification Adjustment for Income Tax Benefit Related to the Amortization of the Prior Year Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	$3.72M	USD	Annual
Reclassification Adjustment for Income Tax Benefit Related to the Amortization of the Prior Year Funded Status of the Pension and Other Post-Retirement Benefit Plans	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax`	$4.93M	USD	Annual
Income Tax Expense (Benefit) Related to Unrealized Gain (Loss) on Securities Available for Sale Arising During the Period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-15.00K	USD	Annual
Income Tax Expense (Benefit) Related to Unrealized Gain (Loss) on Securities Available for Sale Arising During the Period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$592.00K	USD	Annual
Income Tax Expense (Benefit) Related to Unrealized Gain (Loss) on Securities Available for Sale Arising During the Period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$1.50M	USD	Annual
Income Tax Expense (Benefit) Related to Unrealized Gain (Loss) on Derivative Financial Instruments Arising During the Period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	$-22.55M	USD	Annual
Income Tax Expense (Benefit) Related to Unrealized Gain (Loss) on Derivative Financial Instruments Arising During the Period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	$2.01M	USD	Annual
Income Tax Expense (Benefit) Related to Unrealized Gain (Loss) on Derivative Financial Instruments Arising During the Period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	$18.65M	USD	Annual
Reclassification Adjustment for Income Tax Benefit (Expense) on Realized Losses (Gains) from Securities Available for Sale in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$158.00K	USD	Annual
Reclassification Adjustment for Income Tax Benefit (Expense) on Realized Losses (Gains) from Securities Available for Sale in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$527.00K	USD	Annual
Reclassification Adjustment for Income Tax Benefit (Expense) on Realized Losses (Gains) from Securities Available for Sale in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$580.00K	USD	Annual
Reclassification Adjustment for Income Tax Benefit (Expense) on Realized Losses (Gains) from Derivative Financial Instruments in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	$34.29M	USD	Annual
Reclassification Adjustment for Income Tax Benefit (Expense) on Realized Losses (Gains) from Derivative Financial Instruments in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	$86.66M	USD	Annual
Reclassification Adjustment for Income Tax Benefit (Expense) on Realized Losses (Gains) from Derivative Financial Instruments in Net Income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	$955.00K	USD	Annual
Income Taxes - Net	`OtherComprehensiveIncomeLossTax`	$-72.57M	USD	Annual
Income Taxes - Net	`OtherComprehensiveIncomeLossTax`	$-19.66M	USD	Annual
Income Taxes - Net	`OtherComprehensiveIncomeLossTax`	$-20.25M	USD	Annual
Other Comprehensive Loss	`OtherComprehensiveIncomeLossNetOfTax`	$-99.01M	USD	Annual
Other Comprehensive Loss	`OtherComprehensiveIncomeLossNetOfTax`	$-24.48M	USD	Annual
Other Comprehensive Loss	`OtherComprehensiveIncomeLossNetOfTax`	$-37.63M	USD	Annual
Comprehensive Income (Loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-389.97M	USD	Annual
Comprehensive Income (Loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$353.89M	USD	Annual
Comprehensive Income (Loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$259.00M	USD	Annual

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