| Name | OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Tax | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Tax, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive income for unrealized loss realized upon the write-down of available-for-sale securities. | 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 | 220 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 45 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 12 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=121641772&loc=d3e640-108580 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:ReclassificationFromAociCurrentPeriodTax | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfShareholdersEquityAndOtherComprehensiveIncomeCalc2 | |
us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeAlternative | |
us-gaap:OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncome | |
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeFouthAlternative | |
us-gaap:OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeStatementTable | |
us-gaap:OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity | |
us-gaap:ReclassificationFromAociCurrentPeriodTaxAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity |