Mutual Fund [Member]

NameMutualFundMember
Namespacehttp://fasb.org/us-gaap/2020-01-31
Prefixus-gaap
Data typenonnum:domainItemType
Period typeduration
Substitution Groupxbrli:item
BalanceNone
NillableTrue
AbstractTrue

Labels

TextLangRoleContainer role
Mutual Fund [Member]en-UShttp://www.xbrl.org/2003/role/labelhttp://www.xbrl.org/2003/role/link
Regulated investment instrument that pools funds from multiple investors to invest principally in a portfolio of securities and money market instruments to match the investment objective.en-UShttp://www.xbrl.org/2003/role/documentationhttp://www.xbrl.org/2003/role/link

References

NameValueRole
SourceNameRetirement Benefits:Taxonomy Technical Improvementhttp://fasb.org/srt/role/changeNote/changeNote
TaxonomyVersion2018http://fasb.org/srt/role/changeNote/changeNote
ChangeDate2017-08http://fasb.org/srt/role/changeNote/changeNote
ModifiedReferencestruehttp://fasb.org/srt/role/changeNote/changeNote
PublisherFASBhttp://www.xbrl.org/2009/role/commonPracticeRef
NameAccounting Standards Codificationhttp://www.xbrl.org/2009/role/commonPracticeRef
Topic715http://www.xbrl.org/2009/role/commonPracticeRef
SubTopic20http://www.xbrl.org/2009/role/commonPracticeRef
Section50http://www.xbrl.org/2009/role/commonPracticeRef
Paragraph1http://www.xbrl.org/2009/role/commonPracticeRef
Subparagraph(d)(ii)http://www.xbrl.org/2009/role/commonPracticeRef
URIhttp://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920http://www.xbrl.org/2009/role/commonPracticeRef

Related Child Concepts

NameRelation TypeRole
us-gaap:MoneyMarketFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:EquityFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:FixedIncomeFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:BalancedFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:MoneyMarketFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:EquityFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:FixedIncomeFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:BalancedFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable

Related Parent Concepts

NameRelation TypeRole
us-gaap:PlanAssetCategoriesDomain
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:PlanAssetCategoriesDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:PlanAssetCategoriesDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:PlanAssetCategoriesDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:PlanAssetCategoriesDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:InvestmentTypeCategorizationMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:InvestmentTypeCategorizationMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:InvestmentTypeCategorizationMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable