cm:Level3TextBlock: us-gaap:ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock
Share-based Payment Arrangement, Nonvested Award, Cost [Table Text Block] |
us-gaap:ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock |
Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. |
cm:Level3TextBlock |
Text Block (HTML) (nonnum:textBlockItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock |
UnrecognizedCompensationCostNonvestedAwards |