cm:Concept: us-gaap:ConstructionPayableCurrent
| Construction Payable, Current |
| us-gaap:ConstructionPayableCurrent |
| Carrying value as of the balance sheet date of obligations incurred and payable for the acquisition of merchandise, materials, supplies and services pertaining to construction projects such as a housing development or factory expansion not classified as trade payables. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Credit |
| false |
| us-gaap:ConstructionPayableCurrent |