cm:Concept: us-gaap:NoncashOrPartNoncashDivestitureDescription
| Noncash or Part Noncash Divestiture, Description |
| us-gaap:NoncashOrPartNoncashDivestitureDescription |
| A textual description of the sale of an asset or business through a noncash (or part noncash) transaction. At a minimum, the description includes sufficient information to provide an understanding of the nature and purpose of the divesture, as well as the asset divested of. 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:NoncashOrPartNoncashDivestitureDescription |