Other than Temporary Impairment Losses, Investments [Abstract]

NameOtherThanTemporaryImpairmentLossesInvestmentsAbstract
Namespacehttp://fasb.org/us-gaap/2020-01-31
Prefixus-gaap
Data typexbrli:stringItemType
Period typeduration
Substitution Groupxbrli:item
BalanceNone
NillableTrue
AbstractTrue

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TextLangRoleContainer role
Other than Temporary Impairment Losses, Investments [Abstract]en-UShttp://www.xbrl.org/2003/role/labelhttp://www.xbrl.org/2003/role/link

Related Child Concepts

NameRelation TypeRole
us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterestAbstract
parent-childhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities
us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetByInvestmentCategoryAbstract
parent-childhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities
us-gaap:ImpairmentOfInvestments
parent-childhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities
us-gaap:ThresholdPercentageOfValueDeclineInEquitySecuritiesToBeConsideredOtherThanTemporaryImpairment
parent-childhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities
us-gaap:ThresholdPeriodOfValueDeclineInEquitySecuritiesToBeConsideredOtherThanTemporaryImpairment
parent-childhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities
us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterestAbstract
domain-memberhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfGainLossOnInvestmentsTable
us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetByInvestmentCategoryAbstract
domain-memberhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfGainLossOnInvestmentsTable
us-gaap:ImpairmentOfInvestments
domain-memberhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfGainLossOnInvestmentsTable
us-gaap:ThresholdPercentageOfValueDeclineInEquitySecuritiesToBeConsideredOtherThanTemporaryImpairment
domain-memberhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfGainLossOnInvestmentsTable
us-gaap:ThresholdPeriodOfValueDeclineInEquitySecuritiesToBeConsideredOtherThanTemporaryImpairment
domain-memberhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfGainLossOnInvestmentsTable

Related Parent Concepts

NameRelation TypeRole
us-gaap:ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems
parent-childhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities
us-gaap:ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems
domain-memberhttp://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfGainLossOnInvestmentsTable