cm:Concept: us-gaap:ExtendedProductWarrantyAccrualPreexistingIncreaseDecrease
Extended Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties |
us-gaap:ExtendedProductWarrantyAccrualPreexistingIncreaseDecrease |
Amount of increase (decrease) in the extended product warranty accrual from changes in estimates attributable to preexisting product warranties. Excludes standard product warranties. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
For Period (duration) |
Credit |
false |
us-gaap:ExtendedProductWarrantyAccrualPreexistingIncreaseDecrease |