cm:Concept: us-gaap:NoncashOrPartNoncashDivestitureTypeOfConsiderationReceived
| Noncash or Part Noncash Divestiture, Type of Consideration Received |
| us-gaap:NoncashOrPartNoncashDivestitureTypeOfConsiderationReceived |
| The type of noncash consideration received (for example, debt, stock, etc.) Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the 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:NoncashOrPartNoncashDivestitureTypeOfConsiderationReceived |