| Name | CreditLossAdditionalImprovementsAbstract |
|---|---|
| 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 |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Credit Loss, Additional Improvements [Abstract] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:AccountsAndFinancingReceivableAllowanceForCreditLoss | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:AccountsAndNontradeReceivableTextBlock | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:AllowanceForCreditLossCurrentAndNoncurrentAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLossAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:DebtSecuritiesAvailableforsaleAmortizedCostAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:AociDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossCumulativeGainLossAfterTax | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:AociDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossCumulativeGainLossAfterTax | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:ProceedsFinancialAssetPreviouslyWrittenOffRecoveryAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:FinancingReceivableCoveredAndNotCoveredAfterAllowanceForCreditLossFeePremiumAndDiscountAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:FinancingReceivableDeferredIncome | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:FinancingReceivableTroubledDebtRestructuringIncreaseDecreaseFromModification | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:CreditLossAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CreditLosses |