| Standard label: | Financing Receivable [Member] |
| Name: | us-gaap:FinanceReceivablesMember |
| Documentation: | Amounts due the Company from customers, clients, lessees, borrowers, or others under the terms of its agreements therewith. Such amount may include accrued interest receivable in accordance with the terms of the agreements. The agreements also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among myriad other features and characteristics. |
| Object type: | cm:Member |
| Data type: | [Member] (nonnum:domainItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:FinanceReceivablesMember |
| Label | Role | Language |
| Financing Receivable [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |