cm:Level3TextBlock: us-gaap:InvestmentsSoldNotYetPuchasedScheduleOfInvestmentsTextBlock
| Investments Sold Not yet Purchased, Schedule of Investments [Table Text Block] |
| us-gaap:InvestmentsSoldNotYetPuchasedScheduleOfInvestmentsTextBlock |
| Tabular disclosure of the information required in the supplementary schedule applicable to management investment companies listing investments sold, not yet purchased. |
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| Text Block (HTML) (nonnum:textBlockItemType) |
| For Period (duration) |
| (no balance type) |
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| us-gaap:InvestmentsSoldNotYetPuchasedScheduleOfInvestmentsTextBlock |