cm:Concept: us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableCurrent
| Capital Leases, Future Minimum Payments Receivable, Next Twelve Months |
| us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableCurrent |
| Amount of minimum lease payments to be received by the lessor for capital leases in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Debit |
| false |
| us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableCurrent |