| Standard label: | Accrued Fees and Other Revenue Receivable |
| Name: | us-gaap:AccruedFeesAndOtherRevenueReceivable |
| Documentation: | For an unclassified balance sheet, the amount of fees and other revenue, excluding investment income receivable, earned but not yet received, which were recognized in conformity with revenue recognition criteria based on estimates or specific contractual terms. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:AccruedFeesAndOtherRevenueReceivable |
| Label | Role | Language |
| Accrued Fees and Other Revenue Receivable | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02.3) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |