| Name | OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTaxAbstract |
|---|---|
| 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 |
|---|---|---|---|
| Other Comprehensive Loss, Held-to-maturity Security, OTTI, after Adjustments, Tax [Abstract] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| elementCreationTaxonomyVersion | 2017 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterestHeldtomaturitySecurities | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncome | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityAdjustmentFromAociForAccretionOfNoncreditPortionOfOttiTax | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncome | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiTaxAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncome | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTax | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncome | |
us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterestHeldtomaturitySecurities | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeStatementTable | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityAdjustmentFromAociForAccretionOfNoncreditPortionOfOttiTax | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeStatementTable | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiTaxAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeStatementTable | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTax | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeStatementTable | |
us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxIncludingPortionAttributableToNoncontrollingInterestHeldtomaturitySecurities | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityAdjustmentFromAociForAccretionOfNoncreditPortionOfOttiTax | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiTaxAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTax | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:OtherComprehensiveIncomeLossTaxParentheticalDisclosuresAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncome | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTaxAttributableToParentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncome | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTaxAttributableToParentAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeStatementTable | |
us-gaap:OtherComprehensiveIncomeLossTaxAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity |