cm:Concept: us-gaap:ResearchAndDevelopmentArrangementContractToPerformForOthersDescriptionAndTerms
| Research and Development Arrangement, Contract to Perform for Others, Description and Terms |
| us-gaap:ResearchAndDevelopmentArrangementContractToPerformForOthersDescriptionAndTerms |
| Describes the terms of significant agreements under research and development arrangements accounted for as a contract to perform research and development for others (including royalty arrangements, purchase provisions, license agreements, and commitments to provide additional funding), aggregated by similar arrangements or individually if necessary to understand the effects on the financial statements. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:ResearchAndDevelopmentArrangementContractToPerformForOthersDescriptionAndTerms |