10-K Filing

NORTHWEST PIPELINE LLC CIK: 110019 FY 2011

Filing Information

Form Type	10-K
Accession Number	`0001193125-12-080040`
Period End Date	20111231
Filing Date	20120227
Fiscal Year	2011
Fiscal Period	FY
XBRL Instance	npgp-20111231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 79 Income Statement 54 Cash Flow Statement 110 Stockholders Equity 50 Comprehensive Income 9

Balance Sheet 79 line items

Line Item	Tag	Value	Unit	Period
Cash	`CashBalance`	$345.00K	USD	Point-in-time
Cash	`CashBalance`	$402.00K	USD	Point-in-time
Reserves, materials and supplies	`InventoryValuationReserves`	$816.00K	USD	Point-in-time
Cash	`CashBalance`	$37.00K	USD	Point-in-time
Reserves, materials and supplies	`InventoryValuationReserves`	$613.00K	USD	Point-in-time
Cash	`CashBalance`	$5.00K	USD	Point-in-time
Trade	`AccountsReceivableGrossCurrent`	$38.52M	USD	Point-in-time
Trade	`AccountsReceivableGrossCurrent`	$38.24M	USD	Point-in-time
Affiliated companies	`AccountsReceivableRelatedPartiesCurrent`	$2.12M	USD	Point-in-time
Affiliated companies	`AccountsReceivableRelatedPartiesCurrent`	$2.25M	USD	Point-in-time
Advances to affiliate	`DueFromAffiliateCurrent`	$45.05M	USD	Point-in-time
Advances to affiliate	`DueFromAffiliateCurrent`	$52.02M	USD	Point-in-time
Materials and supplies, less reserves of $816 at December 31, 2011 and $613 at December 31, 2010	`InventoryNet`	$10.49M	USD	Point-in-time
Materials and supplies, less reserves of $816 at December 31, 2011 and $613 at December 31, 2010	`InventoryNet`	$11.72M	USD	Point-in-time
Exchange gas due from others	`GasImbalanceAssetLiability`	$3.44M	USD	Point-in-time
Exchange gas due from others	`GasImbalanceAssetLiability`	$2.32M	USD	Point-in-time
Exchange gas offset	`ExchangeGasOffsetCurrent`	$3.85M	USD	Point-in-time
Exchange gas offset	`ExchangeGasOffsetCurrent`	-	USD	Point-in-time
Prepayments and other	`PrepaidExpenseAndOtherAssetsCurrent`	$3.47M	USD	Point-in-time
Prepayments and other	`PrepaidExpenseAndOtherAssetsCurrent`	$3.42M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$109.95M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$106.99M	USD	Point-in-time
PROPERTY, PLANT AND EQUIPMENT, at cost	`PropertyPlantAndEquipmentGross`	$3.07B	USD	Point-in-time
PROPERTY, PLANT AND EQUIPMENT, at cost	`PropertyPlantAndEquipmentGross`	$2.97B	USD	Point-in-time
Less-Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.08B	USD	Point-in-time
Less-Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.02B	USD	Point-in-time
Total property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$1.95B	USD	Point-in-time
Total property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$1.99B	USD	Point-in-time
Deferred charges	`DeferredCostsCurrentAndNoncurrent`	$10.25M	USD	Point-in-time
Deferred charges	`DeferredCostsCurrentAndNoncurrent`	$11.82M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$59.60M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$60.18M	USD	Point-in-time
Total other assets	`OtherAssetsNoncurrent`	$71.99M	USD	Point-in-time
Total other assets	`OtherAssetsNoncurrent`	$69.86M	USD	Point-in-time
Total assets	`Assets`	$2.13B	USD	Point-in-time
Total assets	`Assets`	$2.17B	USD	Point-in-time
Trade	`AccountsPayableTradeCurrent`	$13.63M	USD	Point-in-time
Trade	`AccountsPayableTradeCurrent`	$13.18M	USD	Point-in-time
Affiliated companies	`AccountsPayableRelatedPartiesCurrent`	$8.81M	USD	Point-in-time
Affiliated companies	`AccountsPayableRelatedPartiesCurrent`	$10.11M	USD	Point-in-time
Taxes, other than income taxes	`TaxesPayableCurrent`	$10.19M	USD	Point-in-time
Taxes, other than income taxes	`TaxesPayableCurrent`	$10.25M	USD	Point-in-time
Interest	`InterestPayableCurrent`	$4.04M	USD	Point-in-time
Interest	`InterestPayableCurrent`	$4.04M	USD	Point-in-time
Exchange gas due to others	`ExchangeGasDueToOthers`	$10.47M	USD	Point-in-time
Exchange gas due to others	`ExchangeGasDueToOthers`	$13.12M	USD	Point-in-time
Exchange gas offset	`ExchangeGasOffset`	-	USD	Point-in-time
Exchange gas offset	`ExchangeGasOffset`	$2.24M	USD	Point-in-time
Other	`OtherAccruedLiabilitiesCurrent`	$4.25M	USD	Point-in-time
Other	`OtherAccruedLiabilitiesCurrent`	$5.01M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$54.87M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$54.46M	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$693.83M	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$693.63M	USD	Point-in-time
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$103.04M	USD	Point-in-time
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$88.35M	USD	Point-in-time
CONTINGENT LIABILITIES AND COMMITMENTS (Note 2)	`CommitmentsAndContingencies`	-	USD	Point-in-time
CONTINGENT LIABILITIES AND COMMITMENTS (Note 2)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Owner's capital	`OwnersCapital`	$1.05B	USD	Point-in-time
Owner's capital	`OwnersCapital`	$978.68M	USD	Point-in-time
Owner's capital	`OwnersCapital`	$1.05B	USD	Point-in-time
Owner's capital	`OwnersCapital`	$1.03B	USD	Point-in-time
Loans (to) from affiliate	`LoansToFromAffiliate`	$-105.43M	USD	Point-in-time
Loans (to) from affiliate	`LoansToFromAffiliate`	-	USD	Point-in-time
Loans (to) from affiliate	`LoansToFromAffiliate`	-	USD	Point-in-time
Loans (to) from affiliate	`LoansToFromAffiliate`	$-34.27M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$284.32M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$265.67M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$242.40M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$268.21M	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$338.00K	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$400.00K	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$462.00K	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$276.00K	USD	Point-in-time
Total owner's equity	`OwnersEquity`	$1.32B	USD	Point-in-time
Total owner's equity	`OwnersEquity`	$1.29B	USD	Point-in-time
Total owner's equity	`OwnersEquity`	$1.21B	USD	Point-in-time
Total liabilities and owner's equity	`LiabilitiesAndOwnersEquity`	$2.13B	USD	Point-in-time
Total liabilities and owner's equity	`LiabilitiesAndOwnersEquity`	$2.17B	USD	Point-in-time

Income Statement 54 line items

Line Item	Tag	Value	Unit	Period
OPERATING REVENUES	`RegulatedOperatingRevenueGas`	$434.38M	USD	Annual
OPERATING REVENUES	`RegulatedOperatingRevenueGas`	$434.48M	USD	Annual
OPERATING REVENUES	`RegulatedOperatingRevenueGas`	$421.82M	USD	Annual
General and administrative	`GeneralAndAdministrativeExpense`	$64.66M	USD	Annual
General and administrative	`GeneralAndAdministrativeExpense`	$57.16M	USD	Annual
General and administrative	`GeneralAndAdministrativeExpense`	$59.25M	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$71.08M	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$69.18M	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$65.52M	USD	Annual
Depreciation	`Depreciation`	$86.37M	USD	Annual
Depreciation	`Depreciation`	$87.92M	USD	Annual
Depreciation	`Depreciation`	$90.49M	USD	Annual
Regulatory credits	`RegulatoryCredits`	$1.02M	USD	Annual
Regulatory credits	`RegulatoryCredits`	$2.40M	USD	Annual
Regulatory credits	`RegulatoryCredits`	$1.66M	USD	Annual
Taxes, other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$19.36M	USD	Annual
Taxes, other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$14.16M	USD	Annual
Taxes, other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$18.11M	USD	Annual
Total operating expenses	`OperatingExpenses`	$237.25M	USD	Annual
Total operating expenses	`OperatingExpenses`	$227.04M	USD	Annual
Total operating expenses	`OperatingExpenses`	$233.87M	USD	Annual
Operating Income	`OperatingIncomeLoss`	$197.23M	USD	Annual
Operating Income	`OperatingIncomeLoss`	$194.78M	USD	Annual
Operating Income	`OperatingIncomeLoss`	$200.51M	USD	Annual
Affiliated	`InterestIncomeRelatedParty`	$8.00K	USD	Annual
Affiliated	`InterestIncomeRelatedParty`	$74.00K	USD	Annual
Affiliated	`InterestIncomeRelatedParty`	$27.00K	USD	Annual
Other	`OtherInterestAndDividendIncome`	$16.00K	USD	Annual
Other	`OtherInterestAndDividendIncome`	$3.00K	USD	Annual
Other	`OtherInterestAndDividendIncome`	$16.00K	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$1.44M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$2.00M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$1.95M	USD	Annual
Miscellaneous other expense, net	`OtherNonoperatingIncomeExpense`	$-135.00K	USD	Annual
Miscellaneous other expense, net	`OtherNonoperatingIncomeExpense`	$-108.00K	USD	Annual
Miscellaneous other expense, net	`OtherNonoperatingIncomeExpense`	$-985.00K	USD	Annual
Total other income - net	`NonoperatingIncomeExpense`	$1.95M	USD	Annual
Total other income - net	`NonoperatingIncomeExpense`	$1.35M	USD	Annual
Total other income - net	`NonoperatingIncomeExpense`	$992.00K	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$44.44M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$44.44M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$44.46M	USD	Annual
Other interest	`InterestExpenseOther`	$1.99M	USD	Annual
Other interest	`InterestExpenseOther`	$2.66M	USD	Annual
Other interest	`InterestExpenseOther`	$5.41M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest`	$-1.04M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest`	$-663.00K	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest`	$-877.00K	USD	Annual
Total interest charges	`InterestExpense`	$45.77M	USD	Annual
Total interest charges	`InterestExpense`	$48.81M	USD	Annual
Total interest charges	`InterestExpense`	$46.24M	USD	Annual
NET INCOME	`NetIncomeLoss`	$153.65M	USD	Annual
NET INCOME	`NetIncomeLoss`	$149.53M	USD	Annual
NET INCOME	`NetIncomeLoss`	$152.81M	USD	Annual

Cash Flow Statement 110 line items

Line Item	Tag	Value	Unit	Period
Increases to property, plant and equipment	`PaymentsToAcquireOilAndGasPropertyAndEquipment`	$-117.63M	USD	Annual
Increases to property, plant and equipment	`PaymentsToAcquireOilAndGasPropertyAndEquipment`	$-156.58M	USD	Annual
Increases to property, plant and equipment	`PaymentsToAcquireOilAndGasPropertyAndEquipment`	$-115.68M	USD	Annual
Changes in related accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-4.00M	USD	Annual
Changes in related accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$2.61M	USD	Annual
Net income	`NetIncomeLoss`	$153.65M	USD	Annual
Net income	`NetIncomeLoss`	$149.53M	USD	Annual
Net income	`NetIncomeLoss`	$152.81M	USD	Annual
Changes in related accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-566.00K	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$152.58M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$115.11M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$120.24M	USD	Annual
Depreciation	`Depreciation`	$86.37M	USD	Annual
Depreciation	`Depreciation`	$87.92M	USD	Annual
Depreciation	`Depreciation`	$90.49M	USD	Annual
Adjustment to owner's equity for benefit plans correction	`AdjustmentToOwnersEquityForBenefitPlansCorrection`	$-4.40M	USD	Point-in-time
Regulatory credits	`RegulatoryCredits`	$1.02M	USD	Annual
Regulatory credits	`RegulatoryCredits`	$2.40M	USD	Annual
Regulatory credits	`RegulatoryCredits`	$1.66M	USD	Annual
Adjustment to owner's equity for benefit plans correction	`AdjustmentToOwnersEquityForBenefitPlansCorrection`	-	USD	Point-in-time
Adjustment to owner's equity for benefit plans correction	`AdjustmentToOwnersEquityForBenefitPlansCorrection`	-	USD	Point-in-time
(Gain) loss on sale of property, plant and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$-6.00K	USD	Annual
(Gain) loss on sale of property, plant and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$508.00K	USD	Annual
Loans to affiliate reclassified to equity	`LoansToAffiliateReclassifiedToEquity`	$66.76M	USD	Point-in-time
Loans to affiliate reclassified to equity	`LoansToAffiliateReclassifiedToEquity`	-	USD	Point-in-time
Loans to affiliate reclassified to equity	`LoansToAffiliateReclassifiedToEquity`	-	USD	Point-in-time
(Gain) loss on sale of property, plant and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	-	USD	Annual
Amortization of deferred charges and credits	`AmortizationOfDeferredChargesAndCredits`	$1.49M	USD	Annual
Amortization of deferred charges and credits	`AmortizationOfDeferredChargesAndCredits`	$2.29M	USD	Annual
Amortization of deferred charges and credits	`AmortizationOfDeferredChargesAndCredits`	$5.05M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$1.44M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$2.00M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$1.95M	USD	Annual
Trade accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-1.93M	USD	Annual
Trade accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$326.00K	USD	Annual
Trade accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-270.00K	USD	Annual
Affiliated receivables, including income taxes	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$3.28M	USD	Annual
Affiliated receivables, including income taxes	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$132.00K	USD	Annual
Affiliated receivables, including income taxes	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$-2.40M	USD	Annual
Exchange gas due from others	`IncreaseDecreaseInExchangeGasDueFromOthers`	$-1.26M	USD	Annual
Exchange gas due from others	`IncreaseDecreaseInExchangeGasDueFromOthers`	$-402.00K	USD	Annual
Exchange gas due from others	`IncreaseDecreaseInExchangeGasDueFromOthers`	$-2.62M	USD	Annual
Materials and supplies	`IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories`	$1.76M	USD	Annual
Materials and supplies	`IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories`	$143.00K	USD	Annual
Materials and supplies	`IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories`	$-1.23M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherOperatingAssets`	$-1.74M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherOperatingAssets`	$-826.00K	USD	Annual
Other current assets	`IncreaseDecreaseInOtherOperatingAssets`	$54.00K	USD	Annual
Trade accounts payable	`IncreaseDecreaseInAccountsPayableTrade`	$-597.00K	USD	Annual
Trade accounts payable	`IncreaseDecreaseInAccountsPayableTrade`	$-828.00K	USD	Annual
Trade accounts payable	`IncreaseDecreaseInAccountsPayableTrade`	$-559.00K	USD	Annual
Affiliated payable, including income taxes	`IncreaseDecreaseInAccountsPayableRelatedParties`	$-13.03M	USD	Annual
Affiliated payable, including income taxes	`IncreaseDecreaseInAccountsPayableRelatedParties`	$-1.46M	USD	Annual
Affiliated payable, including income taxes	`IncreaseDecreaseInAccountsPayableRelatedParties`	$350.00K	USD	Annual
Exchange gas due to others	`IncreaseDecreaseInExchangeGasDueToOthers`	$-402.00K	USD	Annual
Exchange gas due to others	`IncreaseDecreaseInExchangeGasDueToOthers`	$-2.62M	USD	Annual
Exchange gas due to others	`IncreaseDecreaseInExchangeGasDueToOthers`	$-1.26M	USD	Annual
Other accrued liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$985.00K	USD	Annual
Other accrued liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$-4.86M	USD	Annual
Other accrued liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$827.00K	USD	Annual
Deferred charges	`IncreaseDecreaseInDeferredCharges`	$5.87M	USD	Annual
Deferred charges	`IncreaseDecreaseInDeferredCharges`	$2.83M	USD	Annual
Deferred charges	`IncreaseDecreaseInDeferredCharges`	$3.36M	USD	Annual
Other deferred credits	`IncreaseDecreaseInDeferredRevenue`	$8.15M	USD	Annual
Other deferred credits	`IncreaseDecreaseInDeferredRevenue`	$4.77M	USD	Annual
Other deferred credits	`IncreaseDecreaseInDeferredRevenue`	$5.34M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$244.36M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$234.80M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$229.20M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$8.00M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$8.00M	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	-	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	-	USD	Annual
Capital contributions from parent	`ProceedsFromContributionsFromParent`	$19.00M	USD	Annual
Capital contributions from parent	`ProceedsFromContributionsFromParent`	$5.10M	USD	Annual
Capital contributions from parent	`ProceedsFromContributionsFromParent`	$49.18M	USD	Annual
Distributions paid	`CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries`	$-127.00M	USD	Annual
Distributions paid	`CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries`	$-191.45M	USD	Annual
Distributions paid	`CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries`	$-135.00M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$2.21M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$657.00K	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.21M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-121.24M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-83.61M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-173.66M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$152.58M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$115.11M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$120.24M	USD	Annual
Proceeds from sales	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$-993.00K	USD	Annual
Proceeds from sales	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$3.91M	USD	Annual
Proceeds from sales	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$2.23M	USD	Annual
Repayments from (advances to) affiliates	`ProceedsFromCollectionOfAdvanceToAffiliate`	$-787.00K	USD	Annual
Repayments from (advances to) affiliates	`ProceedsFromCollectionOfAdvanceToAffiliate`	$-6.98M	USD	Annual
Repayments from (advances to) affiliates	`ProceedsFromCollectionOfAdvanceToAffiliate`	$60.39M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-55.94M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-123.08M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-151.13M	USD	Annual
NET INCREASE (DECREASE) IN CASH	`CashBalancePeriodIncreaseDecrease`	$32.00K	USD	Annual
NET INCREASE (DECREASE) IN CASH	`CashBalancePeriodIncreaseDecrease`	$57.00K	USD	Annual
NET INCREASE (DECREASE) IN CASH	`CashBalancePeriodIncreaseDecrease`	$-397.00K	USD	Annual
CASH AT BEGINNING OF PERIOD	`CashBalance`	$345.00K	USD	Point-in-time
CASH AT BEGINNING OF PERIOD	`CashBalance`	$402.00K	USD	Point-in-time
CASH AT BEGINNING OF PERIOD	`CashBalance`	$37.00K	USD	Point-in-time
CASH AT BEGINNING OF PERIOD	`CashBalance`	$5.00K	USD	Point-in-time
CASH AT END OF PERIOD	`CashBalance`	$345.00K	USD	Point-in-time
CASH AT END OF PERIOD	`CashBalance`	$402.00K	USD	Point-in-time
CASH AT END OF PERIOD	`CashBalance`	$37.00K	USD	Point-in-time
CASH AT END OF PERIOD	`CashBalance`	$5.00K	USD	Point-in-time

Stockholders Equity 50 line items

Line Item	Tag	Value	Unit	Period
Owner's capital - balance at beginning of period	`OwnersCapital`	$1.05B	USD	Point-in-time
Owner's capital - balance at beginning of period	`OwnersCapital`	$978.68M	USD	Point-in-time
Owner's capital - balance at beginning of period	`OwnersCapital`	$1.05B	USD	Point-in-time
Owner's capital - balance at beginning of period	`OwnersCapital`	$1.03B	USD	Point-in-time
Capital contribution from parent	`ProceedsFromContributionsFromParent`	$19.00M	USD	Annual
Capital contribution from parent	`ProceedsFromContributionsFromParent`	$5.10M	USD	Annual
Capital contribution from parent	`ProceedsFromContributionsFromParent`	$49.18M	USD	Annual
Owner's capital - balance at end of period	`OwnersCapital`	$1.05B	USD	Point-in-time
Owner's capital - balance at end of period	`OwnersCapital`	$978.68M	USD	Point-in-time
Owner's capital - balance at end of period	`OwnersCapital`	$1.05B	USD	Point-in-time
Owner's capital - balance at end of period	`OwnersCapital`	$1.03B	USD	Point-in-time
Loans (to) from affiliate - balance at beginning of period	`LoansToFromAffiliate`	$-105.43M	USD	Point-in-time
Loans (to) from affiliate - balance at beginning of period	`LoansToFromAffiliate`	-	USD	Point-in-time
Loans (to) from affiliate - balance at beginning of period	`LoansToFromAffiliate`	-	USD	Point-in-time
Loans (to) from affiliate - balance at beginning of period	`LoansToFromAffiliate`	$-34.27M	USD	Point-in-time
Loans (to) from affiliate	`ChangeInLoansToFromAffiliate`	$-71.17M	USD	Annual
Loans (to) from affiliate	`ChangeInLoansToFromAffiliate`	$105.43M	USD	Annual
Loans (to) from affiliate	`ChangeInLoansToFromAffiliate`	-	USD	Annual
Loans (to) from affiliate - balance at end of period	`LoansToFromAffiliate`	$-105.43M	USD	Point-in-time
Loans (to) from affiliate - balance at end of period	`LoansToFromAffiliate`	-	USD	Point-in-time
Loans (to) from affiliate - balance at end of period	`LoansToFromAffiliate`	-	USD	Point-in-time
Loans (to) from affiliate - balance at end of period	`LoansToFromAffiliate`	$-34.27M	USD	Point-in-time
Retained earnings - balance at beginning of period	`RetainedEarningsAccumulatedDeficit`	$284.32M	USD	Point-in-time
Retained earnings - balance at beginning of period	`RetainedEarningsAccumulatedDeficit`	$265.67M	USD	Point-in-time
Retained earnings - balance at beginning of period	`RetainedEarningsAccumulatedDeficit`	$242.40M	USD	Point-in-time
Retained earnings - balance at beginning of period	`RetainedEarningsAccumulatedDeficit`	$268.21M	USD	Point-in-time
Net income	`NetIncomeLoss`	$153.65M	USD	Annual
Net income	`NetIncomeLoss`	$149.53M	USD	Annual
Net income	`NetIncomeLoss`	$152.81M	USD	Annual
Cash distributions	`CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries`	$-127.00M	USD	Annual
Cash distributions	`CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries`	$-191.45M	USD	Annual
Cash distributions	`CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries`	$-135.00M	USD	Annual
Retained earnings - balance at end of period	`RetainedEarningsAccumulatedDeficit`	$284.32M	USD	Point-in-time
Retained earnings - balance at end of period	`RetainedEarningsAccumulatedDeficit`	$265.67M	USD	Point-in-time
Retained earnings - balance at end of period	`RetainedEarningsAccumulatedDeficit`	$242.40M	USD	Point-in-time
Retained earnings - balance at end of period	`RetainedEarningsAccumulatedDeficit`	$268.21M	USD	Point-in-time
Accumulated other comprehensive income (loss) - balance at beginning of period	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$338.00K	USD	Point-in-time
Accumulated other comprehensive income (loss) - balance at beginning of period	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$400.00K	USD	Point-in-time
Accumulated other comprehensive income (loss) - balance at beginning of period	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$462.00K	USD	Point-in-time
Accumulated other comprehensive income (loss) - balance at beginning of period	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$276.00K	USD	Point-in-time
Cash flow hedges: Reclassification of gain into earnings	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent`	$-62.00K	USD	Annual
Cash flow hedges: Reclassification of gain into earnings	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent`	$-62.00K	USD	Annual
Cash flow hedges: Reclassification of gain into earnings	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent`	$-62.00K	USD	Annual
Accumulated other comprehensive income (loss) - balance at end of period	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$338.00K	USD	Point-in-time
Accumulated other comprehensive income (loss) - balance at end of period	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$400.00K	USD	Point-in-time
Accumulated other comprehensive income (loss) - balance at end of period	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$462.00K	USD	Point-in-time
Accumulated other comprehensive income (loss) - balance at end of period	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$276.00K	USD	Point-in-time
Total owner's equity	`OwnersEquity`	$1.32B	USD	Point-in-time
Total owner's equity	`OwnersEquity`	$1.29B	USD	Point-in-time
Total owner's equity	`OwnersEquity`	$1.21B	USD	Point-in-time

Comprehensive Income 9 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$153.65M	USD	Annual
Net income	`NetIncomeLoss`	$149.53M	USD	Annual
Net income	`NetIncomeLoss`	$152.81M	USD	Annual
Amortization of cash flow hedges	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent`	$-62.00K	USD	Annual
Amortization of cash flow hedges	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent`	$-62.00K	USD	Annual
Amortization of cash flow hedges	`OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent`	$-62.00K	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTax`	$152.75M	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTax`	$153.59M	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTax`	$149.47M	USD	Annual

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