| Name | DefinedBenefitPlanInvestmentPoliciesAndStrategiesNarrativeDescription |
|---|---|
| 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 | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:DefinedBenefitPlanInvestmentStrategiesInvestmentFundCategory | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanTargetAllocationPercentage | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanInvestmentGoals | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanRiskManagementPractices | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanSignificantConcentrationsOfRisk | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanPermittedInvestments | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanProhibitedInvestments | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanDerivativesUse | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanDiversification | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:DefinedBenefitPlanRelationshipBetweenPlanAssetsAndBenefitObligations | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated |