| Standard label: | Time Deposit Liabilities, Description |
| Name: | us-gaap:TimeDepositLiabilitiesDescription |
| Documentation: | Description of time deposits (deposits that do not mature until a specific date and for which there may be penalties for withdrawing prior to maturity) held by the entity, which may include a description of the types and repayment terms of the deposits, the amount of the liabilities recognized for the deposits, the aggregate amount of time deposits (including certificates of deposit) in denominations of less than $100,000, and the aggregate amount of time deposits (including certificates of deposit) in denominations of $100,000 or more. |
| 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:TimeDepositLiabilitiesDescription |
| Label | Role | Language |
| Time Deposit Liabilities, Description | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 942 405 50 1 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 942 |