IndexFinancial Guarantee Insurance Contract, Premium Revenue to be Recognized, Year One [Abstract]
| Name | FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedOneYearFromBalanceSheetDateAbstract |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Financial Guarantee Insurance Contract, Premium Revenue to be Recognized, Year One [Abstract] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
References
| Name | Value | Role |
|---|---|---|
| elementCreationTaxonomyVersion | 2009 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2020 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2019-11 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedLabels | true | http://fasb.org/srt/role/changeNote/changeNote |
Related Child Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFirstQuarterFollowingBalanceSheetDate | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSecondQuarterFollowingBalanceSheetDate | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringThirdQuarterFollowingBalanceSheetDate | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFourthQuarterFollowingBalanceSheetDate | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedOneYearFromBalanceSheetDate | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFirstQuarterFollowingBalanceSheetDate | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceFinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodTable |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSecondQuarterFollowingBalanceSheetDate | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceFinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodTable |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringThirdQuarterFollowingBalanceSheetDate | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceFinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodTable |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFourthQuarterFollowingBalanceSheetDate | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceFinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodTable |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedOneYearFromBalanceSheetDate | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceFinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodTable |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance |
| us-gaap:FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceFinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodTable |