cm:Level3TextBlock: us-gaap:ScheduleOfResearchAndDevelopmentAssetsAcquiredOtherThanThroughBusinessCombinationTextBlock
| Schedule of Research and Development Assets Acquired Other than Through Business Combination [Table Text Block] |
| us-gaap:ScheduleOfResearchAndDevelopmentAssetsAcquiredOtherThanThroughBusinessCombinationTextBlock |
| Tabular disclosure of the nature and amounts of capitalized costs of a research and development nature that were acquired in a transaction other than a business combination, the amount of such assets charged to expense during the period, and identification of the income statement caption in which the charges are included. |
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| Text Block (HTML) (nonnum:textBlockItemType) |
| For Period (duration) |
| (no balance type) |
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| us-gaap:ScheduleOfResearchAndDevelopmentAssetsAcquiredOtherThanThroughBusinessCombinationTextBlock |
| ResearchAndDevelopmentAssetsAcquiredOtherThanThroughBusinessCombination |