| Standard label: | Noninterest Income |
| Name: | us-gaap:NoninterestIncome |
| Documentation: | The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified. |
| 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:NoninterestIncome |
| Label | Role | Language |
| Noninterest Income | http://www.xbrl.org/2003/role/label | en-US |
| Noninterest Income, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 942 220 S99 1 (SX 210.9-04.13) | http://fasb.org/us-gaap/role/ref/legacyRef | 942 |