cm:Level3TextBlock: us-gaap:RevenueRecognitionMilestoneMethodTableTextBlock
| Revenue Recognition, Milestone Method [Table Text Block] |
| us-gaap:RevenueRecognitionMilestoneMethodTableTextBlock |
| Tabular disclosure of the entity's accounting policy for the recognition of revenue under the milestone method. Includes: (1) a description of the overall arrangement; (2) a description of each milestone and related contingent consideration; (3) a determination of whether each milestone is considered substantive; (4) the factors that the entity considered in determining whether the milestone or milestones are substantive; and (5) the amount of consideration recognized during the period for the milestone or milestones. |
| cm:Level3TextBlock |
| Text Block (HTML) (nonnum:textBlockItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:RevenueRecognitionMilestoneMethodTableTextBlock |
| RevenueRecognitionMilestoneMethod |