10-K Filing

BOARDWALK PIPELINE PARTNERS, LP CIK: 1336047 FY 2018

Filing Information

Form Type	10-K
Accession Number	`0001336047-19-000006`
Period End Date	20181231
Filing Date	20190213
Fiscal Year	2018
Fiscal Period	FY
XBRL Instance	bwp10kq42018_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 93 Income Statement 106 Cash Flow Statement 98 Stockholders Equity 28 Comprehensive Income 23

Balance Sheet 93 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.60M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.60M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.10M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$17.60M	USD	Point-in-time
Common Units Issued	`LimitedPartnersCapitalAccountUnitsIssued`	250.30M	shares	Point-in-time
Trade, net	`AccountsReceivableNetCurrent`	$116.80M	USD	Point-in-time
Trade, net	`AccountsReceivableNetCurrent`	$139.20M	USD	Point-in-time
Common Units Outstanding	`LimitedPartnersCapitalAccountUnitsOutstanding`	0.00	shares	Point-in-time
Common Units Outstanding	`LimitedPartnersCapitalAccountUnitsOutstanding`	250.30M	shares	Point-in-time
Other	`OtherReceivables`	$14.50M	USD	Point-in-time
Other	`OtherReceivables`	$16.60M	USD	Point-in-time
Gas transportation receivables	`GasImbalanceAssetLiability`	$4.60M	USD	Point-in-time
Gas transportation receivables	`GasImbalanceAssetLiability`	$8.80M	USD	Point-in-time
Costs recoverable from customers	`RegulatoryAssetsCurrent`	$23.60M	USD	Point-in-time
Costs recoverable from customers	`RegulatoryAssetsCurrent`	-	USD	Point-in-time
Prepayments	`PrepaidExpenseCurrent`	$21.30M	USD	Point-in-time
Prepayments	`PrepaidExpenseCurrent`	$17.90M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$7.10M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$1.30M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$180.60M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$212.30M	USD	Point-in-time
Natural gas transmission and other plant	`PropertyPlantAndEquipmentOther`	$11.18B	USD	Point-in-time
Natural gas transmission and other plant	`PropertyPlantAndEquipmentOther`	$10.47B	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$416.50M	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$150.20M	USD	Point-in-time
Property, plant and equipment, gross	`PropertyPlantAndEquipmentGross`	$10.88B	USD	Point-in-time
Property, plant and equipment, gross	`PropertyPlantAndEquipmentGross`	$11.33B	USD	Point-in-time
Lessaccumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.94B	USD	Point-in-time
Lessaccumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.62B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$8.26B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$8.39B	USD	Point-in-time
Goodwill	`Goodwill`	$237.40M	USD	Point-in-time
Goodwill	`Goodwill`	$237.40M	USD	Point-in-time
Gas stored underground	`InventoryGasInStorageUndergroundNoncurrent`	$68.60M	USD	Point-in-time
Gas stored underground	`InventoryGasInStorageUndergroundNoncurrent`	$86.30M	USD	Point-in-time
Other	`MiscellaneousOtherAssetsNoncurrent`	$144.60M	USD	Point-in-time
Other	`MiscellaneousOtherAssetsNoncurrent`	$139.80M	USD	Point-in-time
Total other assets	`OtherAssetsNoncurrent`	$450.60M	USD	Point-in-time
Total other assets	`OtherAssetsNoncurrent`	$463.50M	USD	Point-in-time
Total Assets	`Assets`	$9.05B	USD	Point-in-time
Total Assets	`Assets`	$8.91B	USD	Point-in-time
Trade	`AccountsPayableTradeCurrent`	$61.20M	USD	Point-in-time
Trade	`AccountsPayableTradeCurrent`	$76.00M	USD	Point-in-time
Affiliates	`AccountsPayableRelatedPartiesCurrent`	$500.00K	USD	Point-in-time
Affiliates	`AccountsPayableRelatedPartiesCurrent`	$1.50M	USD	Point-in-time
Other	`AccountsPayableOtherCurrent`	$11.90M	USD	Point-in-time
Other	`AccountsPayableOtherCurrent`	$9.90M	USD	Point-in-time
Gas payables	`GasImbalancePayableCurrent`	$5.70M	USD	Point-in-time
Gas payables	`GasImbalancePayableCurrent`	$8.20M	USD	Point-in-time
Accrued taxes, other	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$58.60M	USD	Point-in-time
Accrued taxes, other	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$57.10M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$38.10M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$37.90M	USD	Point-in-time
Accrued payroll and employee benefits	`EmployeeRelatedLiabilitiesCurrent`	$34.00M	USD	Point-in-time
Accrued payroll and employee benefits	`EmployeeRelatedLiabilitiesCurrent`	$33.70M	USD	Point-in-time
Construction retainage	`ConstructionPayableCurrentAndNoncurrent`	$20.40M	USD	Point-in-time
Construction retainage	`ConstructionPayableCurrentAndNoncurrent`	$32.40M	USD	Point-in-time
Deferred income	`DeferredRevenueCurrent`	$1.90M	USD	Point-in-time
Deferred income	`DeferredRevenueCurrent`	$500.00K	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$22.30M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$26.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$280.40M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$257.40M	USD	Point-in-time
Longterm debt and capital lease obligation	`LongTermDebtAndCapitalLeaseObligations`	$3.70B	USD	Point-in-time
Longterm debt and capital lease obligation	`LongTermDebtAndCapitalLeaseObligations`	$3.69B	USD	Point-in-time
Pension liability	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$24.80M	USD	Point-in-time
Pension liability	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$21.80M	USD	Point-in-time
Asset retirement obligation	`AssetRetirementObligationsNoncurrent`	$56.40M	USD	Point-in-time
Asset retirement obligation	`AssetRetirementObligationsNoncurrent`	$46.00M	USD	Point-in-time
Provision for other asset retirement	`ProvisionForOtherAssetRetirement`	$65.80M	USD	Point-in-time
Provision for other asset retirement	`ProvisionForOtherAssetRetirement`	$68.50M	USD	Point-in-time
Payable to affiliate	`DueToRelatedPartiesNoncurrent`	-	USD	Point-in-time
Payable to affiliate	`DueToRelatedPartiesNoncurrent`	$16.00M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$78.40M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$65.00M	USD	Point-in-time
Total other liabilities and deferred credits	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$214.60M	USD	Point-in-time
Total other liabilities and deferred credits	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$228.10M	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common units 250.3 million units issued and outstanding December 31, 2017	`LimitedPartnersCapitalAccount`	-	USD	Point-in-time
Common units 250.3 million units issued and outstanding December 31, 2017	`LimitedPartnersCapitalAccount`	$4.71B	USD	Point-in-time
General partner	`GeneralPartnersCapitalAccount`	-	USD	Point-in-time
General partner	`GeneralPartnersCapitalAccount`	$92.70M	USD	Point-in-time
Partners' capital	`GeneralandLimitedPartnersCapitalAccount`	-	USD	Point-in-time
Partners' capital	`GeneralandLimitedPartnersCapitalAccount`	$4.95B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-81.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-85.20M	USD	Point-in-time
Total partners capital	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.53B	USD	Point-in-time
Total partners capital	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.33B	USD	Point-in-time
Total partners capital	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.72B	USD	Point-in-time
Total partners capital	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.86B	USD	Point-in-time
Total Liabilities and Partners' Capital	`LiabilitiesAndStockholdersEquity`	$9.05B	USD	Point-in-time
Total Liabilities and Partners' Capital	`LiabilitiesAndStockholdersEquity`	$8.91B	USD	Point-in-time

Income Statement 106 line items

Line Item	Tag	Value	Unit	Period
Transportation	`TransportationRevenue`	$1.08B	USD	Annual
Transportation	`TransportationRevenue`	$1.12B	USD	Annual
Transportation	`TransportationRevenue`	$1.16B	USD	Annual
Storage, parking and lending	`StorageParkingAndLendingRevenue`	$101.70M	USD	Annual
Storage, parking and lending	`StorageParkingAndLendingRevenue`	$90.40M	USD	Annual
Storage, parking and lending	`StorageParkingAndLendingRevenue`	$109.60M	USD	Annual
Other	`OtherRevenue`	$49.70M	USD	Annual
Other	`OtherRevenue`	$64.70M	USD	Annual
Other	`OtherRevenue`	$77.30M	USD	Annual
Total operating revenues	`Revenues`	$1.32B	USD	Annual
Total operating revenues	`Revenues`	$277.90M	USD	1 Quarter
Total operating revenues	`Revenues`	$317.60M	USD	1 Quarter
Total operating revenues	`Revenues`	$367.00M	USD	1 Quarter
Total operating revenues	`Revenues`	$335.40M	USD	1 Quarter
Total operating revenues	`Revenues`	$1.31B	USD	Annual
Total operating revenues	`Revenues`	$325.10M	USD	1 Quarter
Total operating revenues	`Revenues`	$337.50M	USD	1 Quarter
Total operating revenues	`Revenues`	$1.22B	USD	Annual
Total operating revenues	`Revenues`	$300.50M	USD	1 Quarter
Total operating revenues	`Revenues`	$285.30M	USD	1 Quarter
Fuel and transportation	`CostOfDomesticRegulatedGasRevenue`	$70.80M	USD	Annual
Fuel and transportation	`CostOfDomesticRegulatedGasRevenue`	$54.80M	USD	Annual
Fuel and transportation	`CostOfDomesticRegulatedGasRevenue`	$19.00M	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$204.20M	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$199.90M	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$205.60M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$129.00M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$143.30M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$136.30M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$344.70M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$322.80M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$317.80M	USD	Annual
(Gain) loss on sale of assets and impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$200.00K	USD	Annual
(Gain) loss on sale of assets and impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-49.00M	USD	Annual
(Gain) loss on sale of assets and impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-3.70M	USD	Annual
(Gain) loss on sale of assets and impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-47.10M	USD	Point-in-time
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$95.30M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$103.80M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$98.80M	USD	Annual
Total operating costs and expenses	`OperatingExpenses`	$858.60M	USD	Annual
Total operating costs and expenses	`OperatingExpenses`	$809.20M	USD	Annual
Total operating costs and expenses	`OperatingExpenses`	$197.10M	USD	1 Quarter
Total operating costs and expenses	`OperatingExpenses`	$190.50M	USD	1 Quarter
Total operating costs and expenses	`OperatingExpenses`	$830.80M	USD	Annual
Total operating costs and expenses	`OperatingExpenses`	$202.70M	USD	1 Quarter
Total operating costs and expenses	`OperatingExpenses`	$250.90M	USD	1 Quarter
Total operating costs and expenses	`OperatingExpenses`	$214.50M	USD	1 Quarter
Total operating costs and expenses	`OperatingExpenses`	$199.60M	USD	1 Quarter
Total operating costs and expenses	`OperatingExpenses`	$217.80M	USD	1 Quarter
Total operating costs and expenses	`OperatingExpenses`	$194.70M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$464.00M	USD	Annual
Operating income	`OperatingIncomeLoss`	$476.40M	USD	Annual
Operating income	`OperatingIncomeLoss`	$66.70M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$140.70M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$110.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$164.30M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$123.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$414.50M	USD	Annual
Operating income	`OperatingIncomeLoss`	$107.30M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$80.80M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$85.70M	USD	1 Quarter
Interest expense	`InterestExpense`	$182.80M	USD	Annual
Interest expense	`InterestExpense`	$171.00M	USD	Annual
Interest expense	`InterestExpense`	$175.70M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$100.00K	USD	Annual
Interest income	`InvestmentIncomeInterest`	$400.00K	USD	Annual
Interest income	`InvestmentIncomeInterest`	$400.00K	USD	Annual
Miscellaneous other income, net	`OtherNonoperatingIncomeExpense`	$4.60M	USD	Annual
Miscellaneous other income, net	`OtherNonoperatingIncomeExpense`	$2.00M	USD	Annual
Miscellaneous other income, net	`OtherNonoperatingIncomeExpense`	$8.80M	USD	Annual
Total other deductions	`NonoperatingIncomeExpense`	$-173.60M	USD	Annual
Total other deductions	`NonoperatingIncomeExpense`	$-166.00M	USD	Annual
Total other deductions	`NonoperatingIncomeExpense`	$-173.60M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$302.80M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$298.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$70.10M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$84.30M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$240.90M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$38.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$42.30M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$97.40M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$24.10M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$63.20M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$119.50M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$1.00M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$600.00K	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$400.00K	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$100.00K	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$100.00K	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$300.00K	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$100.00K	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$200.00K	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$600.00K	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$200.00K	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$200.00K	USD	1 Quarter
Net income	`NetIncomeLoss`	$84.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$69.80M	USD	1 Quarter
Net income	`NetIncomeLoss`	$240.30M	USD	Annual
Net income	`NetIncomeLoss`	$23.70M	USD	1 Quarter
Net income	`NetIncomeLoss`	$302.20M	USD	Annual
Net income	`NetIncomeLoss`	$97.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$42.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$297.00M	USD	Annual
Net income	`NetIncomeLoss`	$63.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$37.90M	USD	1 Quarter
Net income	`NetIncomeLoss`	$119.30M	USD	1 Quarter

Cash Flow Statement 98 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$84.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$69.80M	USD	1 Quarter
Net income	`NetIncomeLoss`	$240.30M	USD	Annual
Net income	`NetIncomeLoss`	$23.70M	USD	1 Quarter
Net income	`NetIncomeLoss`	$302.20M	USD	Annual
Net income	`NetIncomeLoss`	$97.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$42.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$297.00M	USD	Annual
Net income	`NetIncomeLoss`	$63.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$37.90M	USD	1 Quarter
Net income	`NetIncomeLoss`	$119.30M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$344.70M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$322.80M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$317.80M	USD	Annual
Amortization of deferred costs and other	`AmortizationOfDeferredCharges`	$8.90M	USD	Annual
Amortization of deferred costs and other	`AmortizationOfDeferredCharges`	$2.10M	USD	Annual
Amortization of deferred costs and other	`AmortizationOfDeferredCharges`	$8.10M	USD	Annual
(Gain) loss on sale of assets and impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$200.00K	USD	Annual
(Gain) loss on sale of assets and impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-49.00M	USD	Annual
(Gain) loss on sale of assets and impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-3.70M	USD	Annual
(Gain) loss on sale of assets and impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-47.10M	USD	Point-in-time
Trade and other receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-6.10M	USD	Annual
Trade and other receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$20.40M	USD	Annual
Trade and other receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$10.40M	USD	Annual
Gas receivables and storage assets	`IncreaseDecreaseInGasImbalanceReceivable`	$-5.60M	USD	Annual
Gas receivables and storage assets	`IncreaseDecreaseInGasImbalanceReceivable`	$-10.90M	USD	Annual
Gas receivables and storage assets	`IncreaseDecreaseInGasImbalanceReceivable`	$-12.60M	USD	Annual
Costs recoverable from customers	`IncreaseDecreaseInOtherRegulatoryAssets`	$23.60M	USD	Annual
Costs recoverable from customers	`IncreaseDecreaseInOtherRegulatoryAssets`	$-3.80M	USD	Annual
Costs recoverable from customers	`IncreaseDecreaseInOtherRegulatoryAssets`	-	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-800.00K	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$1.10M	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$3.80M	USD	Annual
Trade and other payables	`IncreaseDecreaseInAccountsPayable`	$-14.00M	USD	Annual
Trade and other payables	`IncreaseDecreaseInAccountsPayable`	$-20.00M	USD	Annual
Trade and other payables	`IncreaseDecreaseInAccountsPayable`	$-200.00K	USD	Annual
Other payables, affiliates	`IncreaseDecreaseInAccountsPayableRelatedParties`	-	USD	Annual
Other payables, affiliates	`IncreaseDecreaseInAccountsPayableRelatedParties`	-	USD	Annual
Other payables, affiliates	`IncreaseDecreaseInAccountsPayableRelatedParties`	$-100.00K	USD	Annual
Gas payables	`IncreaseDecreaseInBalancingAccountUtility`	$-1.20M	USD	Annual
Gas payables	`IncreaseDecreaseInBalancingAccountUtility`	$5.80M	USD	Annual
Gas payables	`IncreaseDecreaseInBalancingAccountUtility`	$-5.30M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$9.90M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$6.00M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-4.10M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-21.40M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-27.70M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-2.60M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$637.00M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$565.60M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$600.80M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$590.40M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$708.40M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$486.70M	USD	Annual
Proceeds from sale of operating assets	`ProceedsFromSaleOfProductiveAssets`	$200.00K	USD	Annual
Proceeds from sale of operating assets	`ProceedsFromSaleOfProductiveAssets`	$1.00M	USD	Annual
Proceeds from sale of operating assets	`ProceedsFromSaleOfProductiveAssets`	$63.80M	USD	Annual
Advances to affiliates	`PaymentsForProceedsFromOtherInvestingActivities`	$100.00K	USD	Annual
Advances to affiliates	`PaymentsForProceedsFromOtherInvestingActivities`	-	USD	Annual
Advances to affiliates	`PaymentsForProceedsFromOtherInvestingActivities`	-	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-590.20M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-485.80M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-644.60M	USD	Annual
Proceeds from long-term debt, net of issuance cost	`ProceedsFromIssuanceOfUnsecuredDebt`	$494.00M	USD	Annual
Proceeds from long-term debt, net of issuance cost	`ProceedsFromIssuanceOfUnsecuredDebt`	-	USD	Annual
Proceeds from long-term debt, net of issuance cost	`ProceedsFromIssuanceOfUnsecuredDebt`	$539.10M	USD	Annual
Repayment of borrowings from long-term debt	`RepaymentsOfUnsecuredDebt`	$250.00M	USD	Annual
Repayment of borrowings from long-term debt	`RepaymentsOfUnsecuredDebt`	$185.00M	USD	Annual
Repayment of borrowings from long-term debt	`RepaymentsOfUnsecuredDebt`	$575.00M	USD	Annual
Proceeds from borrowings on revolving credit agreement	`ProceedsFromLongTermLinesOfCredit`	$490.00M	USD	Annual
Proceeds from borrowings on revolving credit agreement	`ProceedsFromLongTermLinesOfCredit`	$765.00M	USD	Annual
Proceeds from borrowings on revolving credit agreement	`ProceedsFromLongTermLinesOfCredit`	$640.00M	USD	Annual
Repayment of borrowings on revolving credit agreement, including financing fees	`RepaymentsOfLongTermLinesOfCredit`	$685.80M	USD	Annual
Repayment of borrowings on revolving credit agreement, including financing fees	`RepaymentsOfLongTermLinesOfCredit`	$445.00M	USD	Annual
Repayment of borrowings on revolving credit agreement, including financing fees	`RepaymentsOfLongTermLinesOfCredit`	$560.80M	USD	Annual
Principal payment of capital lease obligation	`RepaymentsOfLongTermCapitalLeaseObligations`	$600.00K	USD	Annual
Principal payment of capital lease obligation	`RepaymentsOfLongTermCapitalLeaseObligations`	$500.00K	USD	Annual
Principal payment of capital lease obligation	`RepaymentsOfLongTermCapitalLeaseObligations`	$500.00K	USD	Annual
Advances from affiliates	`ProceedsFromPaymentsForOtherFinancingActivities`	$300.00K	USD	Annual
Advances from affiliates	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.00M	USD	Annual
Advances from affiliates	`ProceedsFromPaymentsForOtherFinancingActivities`	$100.00K	USD	Annual
Distributions paid	`PaymentsOfDividendsCommonStock`	$102.20M	USD	Annual
Distributions paid	`PaymentsOfDividendsCommonStock`	$102.20M	USD	Annual
Distributions paid	`PaymentsOfDividendsCommonStock`	$102.20M	USD	Annual
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-93.80M	USD	Annual
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-9.10M	USD	Annual
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$20.60M	USD	Annual
(Decrease) increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$1.50M	USD	Annual
(Decrease) increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-14.00M	USD	Annual
(Decrease) increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$13.00M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$3.60M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$4.60M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$3.10M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$17.60M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$3.60M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$4.60M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$3.10M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$17.60M	USD	Point-in-time

Stockholders Equity 28 line items

Line Item	Tag	Value	Unit	Period
Beginning Balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.53B	USD	Point-in-time
Beginning Balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.33B	USD	Point-in-time
Beginning Balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.72B	USD	Point-in-time
Beginning Balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.86B	USD	Point-in-time
Cumulative effect adjustment from the implementation of ASC 606	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$-12.80M	USD	Point-in-time
Adjustment related to registration rights agreement	`RegistrationRightsAgreementAdjustment`	$16.00M	USD	Point-in-time
Net income	`NetIncomeLoss`	$84.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$69.80M	USD	1 Quarter
Net income	`NetIncomeLoss`	$240.30M	USD	Annual
Net income	`NetIncomeLoss`	$23.70M	USD	1 Quarter
Net income	`NetIncomeLoss`	$302.20M	USD	Annual
Net income	`NetIncomeLoss`	$97.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$42.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$297.00M	USD	Annual
Net income	`NetIncomeLoss`	$63.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$37.90M	USD	1 Quarter
Net income	`NetIncomeLoss`	$119.30M	USD	1 Quarter
Distributions paid	`PartnersCapitalAccountDistributions`	$102.20M	USD	Annual
Distributions paid	`PartnersCapitalAccountDistributions`	$102.20M	USD	Annual
Distributions paid	`PartnersCapitalAccountDistributions`	$102.20M	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-4.20M	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-900.00K	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.20M	USD	Annual
General Partner purchase of common units and conversion to partnership interests	`ConversiontoPartnershipInterests`	-	USD	Annual
Ending Balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.53B	USD	Point-in-time
Ending Balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.33B	USD	Point-in-time
Ending Balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.72B	USD	Point-in-time
Ending Balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$4.86B	USD	Point-in-time

Comprehensive Income 23 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$84.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$69.80M	USD	1 Quarter
Net income	`NetIncomeLoss`	$240.30M	USD	Annual
Net income	`NetIncomeLoss`	$23.70M	USD	1 Quarter
Net income	`NetIncomeLoss`	$302.20M	USD	Annual
Net income	`NetIncomeLoss`	$97.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$42.20M	USD	1 Quarter
Net income	`NetIncomeLoss`	$297.00M	USD	Annual
Net income	`NetIncomeLoss`	$63.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$37.90M	USD	1 Quarter
Net income	`NetIncomeLoss`	$119.30M	USD	1 Quarter
Loss on cash flow hedge	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$-1.50M	USD	Annual
Loss on cash flow hedge	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	-	USD	Annual
Loss on cash flow hedge	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	-	USD	Annual
Reclassification adjustment transferred to Net income from cash flow hedges	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.50M	USD	Annual
Reclassification adjustment transferred to Net income from cash flow hedges	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-2.40M	USD	Annual
Reclassification adjustment transferred to Net income from cash flow hedges	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$-1.20M	USD	Annual
Pension and other postretirement benefit costs, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.80M	USD	Annual
Pension and other postretirement benefit costs, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$1.90M	USD	Annual
Pension and other postretirement benefit costs, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$5.40M	USD	Annual
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$296.10M	USD	Annual
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$306.40M	USD	Annual
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$236.10M	USD	Annual

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