cm:Concept: us-gaap:OtherSignificantNoncashTransactionConsiderationReceived
| Other Significant Noncash Transaction, Consideration Received |
| us-gaap:OtherSignificantNoncashTransactionConsiderationReceived |
| The noncash (or part noncash) consideration received in a transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of a transaction not resulting in cash receipts or cash payments in the period. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:OtherSignificantNoncashTransactionConsiderationReceived |