cm:Concept: us-gaap:ReceivablesFromClearingOrganizations
| Receivables from Clearing Organizations |
| us-gaap:ReceivablesFromClearingOrganizations |
| Amount of right to receive cash and securities on deposit with clearing organizations. Clearing organizations perform post trade processing and trade comparisons among numerous broker-dealers and act as settlement agents between buying and selling broker-dealers. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Debit |
| false |
| us-gaap:ReceivablesFromClearingOrganizations |