cm:Level3TextBlock: us-gaap:ScheduleOfOtherInvestmentsNotReadilyMarketableTextBlock
Other Investments Not Readily Marketable [Table Text Block] |
us-gaap:ScheduleOfOtherInvestmentsNotReadilyMarketableTextBlock |
Tabular disclosure of other investments not readily marketable, including, but not limited to, description of investment, fair value and value as measured by quoted price. |
cm:Level3TextBlock |
Text Block (HTML) (nonnum:textBlockItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:ScheduleOfOtherInvestmentsNotReadilyMarketableTextBlock |