| Standard label: | Securities Received as Collateral, Amount Foreclosed |
| Name: | us-gaap:SecuritiesReceivedAsCollateralAmountForeclosed |
| Documentation: | The fair value of collateral received that was taken through foreclosure due to default by the original transferor in lieu of collection of the secured receivable. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SecuritiesReceivedAsCollateralAmountForeclosed |
| Label | Role | Language |
| Securities Received as Collateral, Amount Foreclosed | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 310 10 45 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 310 |