cm:Concept: us-gaap:RevenueRecognitionMultipleDeliverableArrangementsDeterminationOfSellingPriceMethod
| Revenue Recognition, Multiple-deliverable Arrangements, Determination of Selling Price, Method |
| us-gaap:RevenueRecognitionMultipleDeliverableArrangementsDeterminationOfSellingPriceMethod |
| Represents the method (vendor-specific objective evidence, third-party evidence, estimated selling price) used to establish the selling price of the significant unit of accounting for allocation of the consideration of the multiple-deliverable arrangement. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:RevenueRecognitionMultipleDeliverableArrangementsDeterminationOfSellingPriceMethod |