| Standard label: | Impaired Financing Receivable, Interest Income, Accrual Method |
| Name: | us-gaap:ImpairedFinancingReceivableInterestIncomeAccrualMethod |
| Documentation: | Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. |
| 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:ImpairedFinancingReceivableInterestIncomeAccrualMethod |
| Label | Role | Language |
| Impaired Financing Receivable, Interest Income, Accrual Method | http://www.xbrl.org/2003/role/label | en-US |
| Impaired Financing Receivable, Interest Income, Accrual Method, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 310 10 50 15 (c)(2) | http://fasb.org/us-gaap/role/ref/legacyRef | 310 |