cm:Concept: us-gaap:PropertyPlantAndEquipmentFairValueDisclosure
| Property, Plant, and Equipment, Fair Value Disclosure |
| us-gaap:PropertyPlantAndEquipmentFairValueDisclosure |
| Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Debit |
| false |
| us-gaap:PropertyPlantAndEquipmentFairValueDisclosure |