| Name | HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOther |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Disclosure regarding factors used to determine that the impairment of securities categorized as held-to-maturity where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of other evidence considered in reaching a conclusion that the held-to-maturity investments are not other-than-temporarily impaired, including, for example, performance indicators of the underlying assets in the security (including default rates, delinquency rates and percentage of nonperforming assets), loan to collateral value ratios, third-party guarantees, current levels of subordination, vintage, geographic concentration, industry analyst reports, sector credit ratings, volatility of the security's fair value, and any other relevant information. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 320 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 6 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Subparagraph | (b)(5) | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherThirdPartyGuaranteesAmount | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities | |
us-gaap:HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherKeyPerformanceIndicatorAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities | |
us-gaap:HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherLoanToCollateralValueRatio | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities | |
us-gaap:HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherLevelOfSubordination | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities | |
us-gaap:HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherVintage | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities | |
us-gaap:HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherGeographicConcentration | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities | |
us-gaap:HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherFairValueVolatilityRate | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities | |
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us-gaap:HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherKeyPerformanceIndicatorAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfHeldToMaturitySecuritiesTable | |
us-gaap:HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureOtherLoanToCollateralValueRatio | domain-member | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfHeldToMaturitySecuritiesTable | |
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| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:HeldToMaturitySecuritiesContinuousUnrealizedLossPositionQualitativeDisclosureAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecurities | |
us-gaap:HeldToMaturitySecuritiesContinuousUnrealizedLossPositionQualitativeDisclosureAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfHeldToMaturitySecuritiesTable |