| Name | PrepayableFinancialAssetClosedPortfolioLastOfLayerAmortizedCost |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| 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 |
|---|---|---|---|
| Prepayable Financial Asset Closed Portfolio, Last-of-Layer, Amortized Cost | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Amortized cost of closed portfolio of prepayable financial asset, used to designate hedging relationship in which hedged item is last layer expected to be remaining at end of hedging relationship. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Note | Element is intended to be used for each reported period for which amendment from Accounting Standards Update identified in tin-part:Source_ASU_Number is applied. | http://fasb.org/us-gaap/role/tin/transition |
| PublishDate | 2018-01 | http://fasb.org/us-gaap/role/tin/transition |
| Source | ASU | http://fasb.org/us-gaap/role/tin/transition |
| SourceName | Hedging | http://fasb.org/us-gaap/role/tin/transition |
| Source_ASU_Number | 2017-12 | http://fasb.org/us-gaap/role/tin/transition |
| elementCreationTaxonomyVersion | 2018 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 815 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 10 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 50 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 4EEE | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | (a) | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=125515794&loc=SL109999718-113959 | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:ClosedPortfolioAndBeneficialInterestLastOfLayerAmortizedCostAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities | |
us-gaap:ClosedPortfolioAndBeneficialInterestLastOfLayerAmortizedCost | summation-item | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |