| Standard label: | Lender Concentration Risk [Member] |
| Name: | us-gaap:LenderConcentrationRiskMember |
| Documentation: | Reflects the percentage that borrowings or credit lines from one or more lenders is to a specified benchmark, such as total debt, segment debt. Risk is the materially adverse effects from loss of financing arrangements with a particular lender. |
| 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:LenderConcentrationRiskMember |
| Label | Role | Language |
| Lender Concentration Risk [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 275 10 50 18 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 275 |