| Name | DebtSecuritiesHeldToMaturityWeightedAverageYield |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| Prefix | us-gaap |
| Data type | dtr-types:percentItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Debt Securities, Held-to-Maturity, Weighted Average Yield | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Weighted average yield of investment in debt security measured at amortized cost (held-to-maturity). | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| elementCreationTaxonomyVersion | 2021 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | Statistical Disclosures for Banks | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2021 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2020-11 | http://fasb.org/srt/role/changeNote/changeNote |
| NewElement | true | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | SEC | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Regulation S-K (SK) | http://www.xbrl.org/2009/role/commonPracticeRef |
| Number | 229 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | 1403 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | (a) | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:DebtSecuritiesHeldToMaturityMaturityWeightedAverageYieldAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift | |
us-gaap:DebtSecuritiesHeldToMaturityRollingMaturityWeightedAverageYieldAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |