cm:Concept: us-gaap:ProductLiabilityContingencyManagementAssessmentProcess
| Product Liability Contingency, Management Assessment Process |
| us-gaap:ProductLiabilityContingencyManagementAssessmentProcess |
| Describes management's process to evaluate allegations of damages pertaining to a product and to estimate the impact on the financial statements and ongoing operations. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:ProductLiabilityContingencyManagementAssessmentProcess |