| Standard label: | Transfers of Financial Assets Accounted for as Sale, Valuation Techniques |
| Name: | us-gaap:TransfersOfFinancialAssetsAccountedForAsSaleValuationTechiques |
| Documentation: | Description of the valuation techniques or other methods used to estimate the fair value of assets obtained or liabilities incurred in transfers of financial assets accounted for as sales. If a valuation model is used, the description would be expected to include quantitative and qualitative information about the assumptions used in the valuation model (for example, but not limited to, discount rates, anticipated credit losses, and prepayment speeds). |
| Object type: | cm:Concept |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:TransfersOfFinancialAssetsAccountedForAsSaleValuationTechiques |
| Label | Role | Language |
| Transfers of Financial Assets Accounted for as Sale, Valuation Techniques | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 860 20 50 3 (cc) | http://fasb.org/us-gaap/role/ref/legacyRef | 860 |