cm:Concept: us-gaap:LossContingencyAccrualProductLiabilityDiscount
| Loss Contingency Accrual, Product Liability, Discount |
| us-gaap:LossContingencyAccrualProductLiabilityDiscount |
| The amount of imputed interest necessary to reduce (reconcile) the estimated aggregate undiscounted amount of the accrual for damages arising from third-party use of the entity's product(s) or process(es) to the present value recognized on the balance sheet (if the accrual qualifies for discounting). |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Debit |
| false |
| us-gaap:LossContingencyAccrualProductLiabilityDiscount |