cm:Concept: us-gaap:InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings
| Inventory, Net of Allowances, Customer Advances and Progress Billings |
| us-gaap:InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings |
| Amount, after deduction of valuation reserves, other allowances, and customer advances received on long-term contracts or programs, of inventory expected to be converted to cash, sold or exchanged within the normal operating cycle. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Debit |
| false |
| us-gaap:InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings |