cm:Level3TextBlock: us-gaap:RevenueRecognitionMultipleDeliverableArrangementsTableTextBlock
| Revenue Recognition, Multiple-deliverable Arrangements [Table Text Block] |
| us-gaap:RevenueRecognitionMultipleDeliverableArrangementsTableTextBlock |
| Tabular disclosure of the recognition of revenue arrangements under which the entity does or will perform multiple revenue-generating activities, categorized by type of arrangement. This item includes certain revenue arrangements that include software elements. This item does not include multiple-deliverable arrangements for industries that prepare disclosures under specific requirements (for instance, construction-type and production-type contracts) otherwise provided for in the taxonomy. |
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| Text Block (HTML) (nonnum:textBlockItemType) |
| For Period (duration) |
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| us-gaap:RevenueRecognitionMultipleDeliverableArrangementsTableTextBlock |
| RevenueRecognitionMultipledeliverableArrangements |