 | us-gaap:PensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists |
 | us-gaap:PostemploymentRetirementBenefitsMember | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists |
 | us-gaap:MultiemployerPlansTypeDomain | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated |
 | us-gaap:PensionPlansDefinedBenefitMember | parent-child | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | parent-child | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | parent-child | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | parent-child | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | parent-child | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:PostemploymentRetirementBenefitsMember | parent-child | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:PensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable |
 | us-gaap:PostemploymentRetirementBenefitsMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable |
 | us-gaap:PensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable |
 | us-gaap:PostemploymentRetirementBenefitsMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable |
 | us-gaap:PensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable |
 | us-gaap:PostemploymentRetirementBenefitsMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable |
 | us-gaap:PensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable |
 | us-gaap:PostemploymentRetirementBenefitsMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable |
 | us-gaap:PensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedContributionPlanTable |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedContributionPlanTable |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedContributionPlanTable |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedContributionPlanTable |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedContributionPlanTable |
 | us-gaap:PostemploymentRetirementBenefitsMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedContributionPlanTable |
 | us-gaap:PensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable |
 | us-gaap:PostemploymentRetirementBenefitsMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable |
 | us-gaap:PensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfMultiemployerPlansTable |
 | us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfMultiemployerPlansTable |
 | us-gaap:OtherPensionPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfMultiemployerPlansTable |
 | us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfMultiemployerPlansTable |
 | us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefitMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfMultiemployerPlansTable |
 | us-gaap:PostemploymentRetirementBenefitsMember | domain-member | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfMultiemployerPlansTable |