| Name | InterestIncomeOperating |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | credit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Interest Income, Operating | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Interest Income, Operating, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| elementCreationTaxonomyVersion | 2008 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 220 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | S99 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 2 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Subparagraph | (SX 210.5-03.1(e)) | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:InterestIncomeSecuritiesTaxable | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncome | |
us-gaap:InterestIncomeSecuritiesTaxExempt | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncome | |
us-gaap:InterestIncomeSecuritiesTaxAdvantaged | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncome | |
us-gaap:InterestIncomeSecuritiesMortgageBacked | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncomeFirstAlternative | |
us-gaap:InterestIncomeSecuritiesStateAndMunicipal | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncomeFirstAlternative | |
us-gaap:InterestIncomeSecuritiesUSTreasuryAndOtherUSGovernment | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncomeFirstAlternative | |
us-gaap:InterestIncomeSecuritiesCorporateDebtOperating | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncomeFirstAlternative |