cm:Concept: us-gaap:LossContingencyAccrualProductLiabilityDueInRemainderOfFiscalYear
| Loss Contingency Accrual, Product Liability, Remainder of Fiscal Year |
| us-gaap:LossContingencyAccrualProductLiabilityDueInRemainderOfFiscalYear |
| Undiscounted amount of the accrual for damages arising from third-party use of the entity's product or process expected to be paid in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Credit |
| false |
| us-gaap:LossContingencyAccrualProductLiabilityDueInRemainderOfFiscalYear |