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Name	DefinedBenefitPlanDisclosureLineItems
Namespace	http://fasb.org/us-gaap/2020-01-31
Prefix	us-gaap
Data type	xbrli:stringItemType
Period type	duration
Substitution Group	xbrli:item
Balance	None
Nillable	True
Abstract	True

Text	Lang	Role	Container role
Defined Benefit Plan Disclosure [Line Items]	en-US	http://www.xbrl.org/2003/role/label	http://www.xbrl.org/2003/role/link
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.	en-US	http://www.xbrl.org/2003/role/documentation	http://www.xbrl.org/2003/role/link

Name	Relation Type	Role
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp02
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp02ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp02ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] `us-gaap:DefinedBenefitPlanNetPeriodicBenefitCostAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012
Defined Benefit Plan, Plan Assets, Contributions by Employer `us-gaap:DefinedBenefitPlanContributionsByEmployer`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year `us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year `us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year `us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] `us-gaap:DefinedBenefitPlanNetPeriodicBenefitCostAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Plan Assets, Contributions by Employer `us-gaap:DefinedBenefitPlanContributionsByEmployer`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year `us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year `us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year `us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] `us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Accumulated Benefit Obligation `us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract] `us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTaxAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Expected Amortization, Next Fiscal Year [Abstract] `us-gaap:DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] `us-gaap:DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] `us-gaap:DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract] `us-gaap:DefinedBenefitPlanAssumedHealthCareCostTrendRatesAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year `us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] `us-gaap:DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] `us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Accumulated Benefit Obligation `us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract] `us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTaxAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Expected Amortization, Next Fiscal Year [Abstract] `us-gaap:DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] `us-gaap:DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] `us-gaap:DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract] `us-gaap:DefinedBenefitPlanAssumedHealthCareCostTrendRatesAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year `us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] `us-gaap:DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp03
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp03ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp03ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp04
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp04ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp04ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp041
Defined Benefit Plan, Funding Status [Extensible List] `us-gaap:DefinedBenefitPlanFundingStatusExtensibleList`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp041
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp041ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp041ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funding Status [Extensible List] `us-gaap:DefinedBenefitPlanFundingStatusExtensibleList`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp041ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp05
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp05ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp05ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp06
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp06ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp06ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp07
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp07ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp07ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation `us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation `us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets `us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08
Defined Benefit Plan, Sponsor Location [Extensible List] `us-gaap:DefinedBenefitPlanSponsorLocationExtensibleList`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation `us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation `us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets `us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Sponsor Location [Extensible List] `us-gaap:DefinedBenefitPlanSponsorLocationExtensibleList`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp09
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTaxAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp09
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp09ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp09ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTaxAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp09ScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] `us-gaap:DefinedBenefitPlanNetPeriodicBenefitCostAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Roll Forwards [Abstract] `us-gaap:DefinedBenefitPlanRollForwardsAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] `us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] `us-gaap:DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract] `us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTaxAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] `us-gaap:DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Information about Plan Assets [Abstract] `us-gaap:DefinedBenefitPlanInformationAboutPlanAssetsAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Expected Amounts [Abstract] `us-gaap:DefinedBenefitPlanExpectedAmountsAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Additional Information [Abstract] `us-gaap:DefinedBenefitPlanAdditionalInformationAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Type [Extensible List] `us-gaap:DefinedBenefitPlanTypeExtensibleList`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Sponsor Location [Extensible List] `us-gaap:DefinedBenefitPlanSponsorLocationExtensibleList`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Tax Status [Extensible List] `us-gaap:DefinedBenefitPlanTaxStatusExtensibleList`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Funding Status [Extensible List] `us-gaap:DefinedBenefitPlanFundingStatusExtensibleList`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plan, Plan Name [Extensible List] `us-gaap:DefinedBenefitPlanPlanNameExtensibleList`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	all	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] `us-gaap:DefinedBenefitPlanNetPeriodicBenefitCostAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] `us-gaap:DefinedBenefitPlanFundedStatusOfPlanAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Roll Forwards [Abstract] `us-gaap:DefinedBenefitPlanRollForwardsAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] `us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] `us-gaap:DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract] `us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax [Abstract] `us-gaap:AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTaxAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Assumptions Used in Calculations [Abstract] `us-gaap:DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Information about Plan Assets [Abstract] `us-gaap:DefinedBenefitPlanInformationAboutPlanAssetsAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Expected Amounts [Abstract] `us-gaap:DefinedBenefitPlanExpectedAmountsAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Additional Information [Abstract] `us-gaap:DefinedBenefitPlanAdditionalInformationAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Type [Extensible List] `us-gaap:DefinedBenefitPlanTypeExtensibleList`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Sponsor Location [Extensible List] `us-gaap:DefinedBenefitPlanSponsorLocationExtensibleList`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Tax Status [Extensible List] `us-gaap:DefinedBenefitPlanTaxStatusExtensibleList`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Funding Status [Extensible List] `us-gaap:DefinedBenefitPlanFundingStatusExtensibleList`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
Defined Benefit Plan, Plan Name [Extensible List] `us-gaap:DefinedBenefitPlanPlanNameExtensibleList`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable

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Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp02
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp012
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp011
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp03
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp04
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp041
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp05
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp06
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp07
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp08
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/RetirementBenefitsTmp09
Schedule of Defined Benefit Plans Disclosures [Table] `us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits