cm:Concept: us-gaap:StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition
| Standard Product Warranty Accrual, Additions from Business Acquisition |
| us-gaap:StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition |
| Amount of increase in the standard product warranty accrual from a business acquisition. Excludes extended product warranties. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| For Period (duration) |
| Credit |
| false |
| us-gaap:StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition |