cm:Concept: us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareInvesteeSignificantInvestmentStartegiesDescription
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Investee Significant Investment Strategies, Description |
us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareInvesteeSignificantInvestmentStartegiesDescription |
This item describes the investment strategies of an investee for those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments). |
cm:Concept |
Text/String (xbrli:stringItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareInvesteeSignificantInvestmentStartegiesDescription |