| Name | OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiSaleAfterTax |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| 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 |
|---|---|---|---|
| Other Comprehensive Loss, Held-to-maturity Security, Reclassification Adjustment from AOCI for Noncredit Portion of OTTI, Sale, after Tax | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Amount, after tax, of reclassification adjustment from accumulated other comprehensive loss for other than temporary impairment (OTTI) realized upon sale of investment in held-to-maturity security. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| SourceName | Reference Project | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2018 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2017-11 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 220 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 10 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 45 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 17A | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=121641772&loc=SL34724391-108580 | http://www.xbrl.org/2003/role/disclosureRef |
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| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
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| Section | 45 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 14A | http://fasb.org/us-gaap/role/ref/legacyRef |
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| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
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| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiSaleBeforeTax | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeFouthAlternative | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiSaleTax | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeFouthAlternative |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiAfterTaxAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncome | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiAfterTax | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeFouthAlternative | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiAfterTaxAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfOtherComprehensiveIncomeStatementTable | |
us-gaap:OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiAfterTaxAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity |