| Standard label: | Servicing Asset at Amortized Cost, Fair Value |
| Name: | us-gaap:ServicingAssetAtAmortizedValueFairValue |
| Documentation: | Fair value of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ServicingAssetAtAmortizedValueFairValue |
| Label | Role | Language |
| Servicing Asset at Amortized Cost, Fair Value | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 815 20 50 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |
| FASB Accounting Standards Codification 860 50 50 4 (b) | http://fasb.org/us-gaap/role/ref/legacyRef | 860 |