cm:Concept: us-gaap:RepaymentsOfLongtermLoansFromVendors
| Repayments of Long-term Loans from Vendors |
| us-gaap:RepaymentsOfLongtermLoansFromVendors |
| Cash outflows under financing arrangements with vendors (seller-financed debt), which had a maturity date at inception of more than one year (or more than one operating cycle, if longer); such debt may have arisen from purchases of property, plant and equipment or other productive assets. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| For Period (duration) |
| Credit |
| false |
| us-gaap:RepaymentsOfLongtermLoansFromVendors |