| Name | LoansReceivableCommercialMortgage |
|---|---|
| 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 |
|---|---|---|---|
| Loans Receivable, Gross, Commercial, Mortgage (Deprecated 2019-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Amount before allowance of mortgage loans on existing land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| DeprecatedDate | 2019-01-31 | http://fasb.org/srt/role/changeNote/changeNote |
| DeprecatedLabel | Element was deprecated because the financial reporting concept can be conveyed dimensionally. | http://fasb.org/srt/role/changeNote/changeNote |
| DeprecationReplacement | NotesReceivableGross FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis | http://fasb.org/srt/role/changeNote/changeNote |
| SourceName | Financial Instruments-Credit Losses | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2019 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2018-09 | http://fasb.org/srt/role/changeNote/changeNote |
| ElementDeprecated | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2016-13 | http://fasb.org/srt/role/changeNote/changeNote |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:DeprecatedItems | parent-child | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:NotesReceivableGross | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated |