Swaption [Member]

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

Labels

TextLangRoleContainer role
Swaption [Member]en-UShttp://www.xbrl.org/2003/role/labelhttp://www.xbrl.org/2003/role/link
Option contract giving the holder the right to enter into a swap.en-UShttp://www.xbrl.org/2003/role/documentationhttp://www.xbrl.org/2003/role/link

Related Parent Concepts

NameRelation TypeRole
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
us-gaap:DerivativeMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
us-gaap:DerivativeMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
us-gaap:DerivativeMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
us-gaap:DerivativeMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
us-gaap:DerivativeMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
us-gaap:DerivativeMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
us-gaap:DerivativeMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
us-gaap:DerivativeMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
us-gaap:CreditDerivativesContractTypeDomain
parent-childhttp://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities
us-gaap:CreditDerivativesContractTypeDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivitiesScheduleOfCreditDerivativesTable
us-gaap:OptionMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosures
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueOptionQuantitativeDisclosuresTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresScheduleOfFairValueOffBalanceSheetRisksTable
us-gaap:OptionMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicing
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingAssumptionForFairValueAsOfBalanceSheetDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingAssumptionForFairValueOnSecuritizationDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingFeesEarnedInExchangeForServicingFinancialAssetsTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingFinancialInstrumentsOwnedAndPledgedAsCollateralTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingScheduleOfAssetsAndAssociatedLiabilitiesAccountedForAsSecuredBorrowingsTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingScheduleOfDerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingSecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingSecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingSensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingServicingAssetsAtAmortizedValueTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingServicingAssetsAtFairValueTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingServicingLiabilitiesAtFairValueTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingServicingLiabilityAtAmortizedValueTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingTransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/TransfersAndServicingValuationAllowanceForImpairmentOfRecognizedServicingAssetsTable
us-gaap:OptionMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftTransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable
us-gaap:OptionMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
us-gaap:DerivativeMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
us-gaap:DerivativeMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
us-gaap:OptionMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
us-gaap:OptionMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable