| Name | HeldToMaturitySecurities |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Debt Securities, Held-to-maturity | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Debt Securities, Held-to-maturity, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Amount 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 |
|---|---|---|
| PublishDate | 2020-01 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Source | Taxonomy Implementation Guide | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | Financial Instruments-Debt Securities | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| pdfURI | https://www.fasb.org/debtsecurities_2019 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | Financial Instruments-Recognition and Measurement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2018 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2017-08 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedLabels | true | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedDocumentation | true | http://fasb.org/srt/role/changeNote/changeNote |
| PreviousDocumentation | Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity. | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2016-01 | http://fasb.org/srt/role/changeNote/changeNote |
| SourceName | Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2020 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2019-10 | 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 | 320 | 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 | 1 | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | (b) | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562 | http://www.xbrl.org/2003/role/disclosureRef |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 942 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 210 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | S99 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 1 | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | (SX 210.9-03(6)) | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 | http://www.xbrl.org/2003/role/disclosureRef |
| 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 | 5 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Subparagraph | (a) | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedFirstAlternative | |
us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedFirstAlternative | |
us-gaap:HeldToMaturitySecuritiesFairValue | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedFirstAlternative | |
us-gaap:HeldToMaturitySecuritiesCurrent | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedSecondAlternative | |
us-gaap:HeldToMaturitySecuritiesNoncurrent | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedSecondAlternative | |
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-DepositBasedOperations | |
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-DepositBasedOperations | |
us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss | summation-item | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesTmp012 | |
us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain | summation-item | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesTmp012 | |
us-gaap:HeldToMaturitySecuritiesFairValue | summation-item | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesTmp012 | |
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount | summation-item | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesTmp022 | |
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount | summation-item | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesTmp022 | |
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount | summation-item | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesTmp022 | |
us-gaap:HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount | summation-item | http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesTmp022 | |
us-gaap:DebtSecuritiesHeldToMaturityOriginatedInCurrentFiscalYear | summation-item | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:DebtSecuritiesHeldToMaturityOriginatedInFiscalYearBeforeLatestFiscalYear | summation-item | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:DebtSecuritiesHeldToMaturityOriginatedTwoYearsBeforeLatestFiscalYear | summation-item | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:DebtSecuritiesHeldToMaturityOriginatedThreeYearsBeforeLatestFiscalYear | summation-item | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:DebtSecuritiesHeldToMaturityOriginatedFourYearsBeforeLatestFiscalYear | summation-item | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:DebtSecuritiesHeldToMaturityOriginatedFiveOrMoreYearsBeforeLatestFiscalYear | summation-item | http://fasb.org/us-gaap/role/disclosure/CreditLosses | |
us-gaap:DebtSecuritiesHeldToMaturityNotPastDue | summation-item | http://fasb.org/us-gaap/role/disclosure/CreditLossesCalc3 | |
us-gaap:DebtSecuritiesHeldToMaturityPastDue | summation-item | http://fasb.org/us-gaap/role/disclosure/CreditLossesCalc3 |