cm:Member: us-gaap:FairValueConcentrationOfRiskIdentifyingCharacteristicsMember
Fair Value, Concentration of Risk, Identifying Characteristics [Member] |
us-gaap:FairValueConcentrationOfRiskIdentifyingCharacteristicsMember |
This element represents information about the (shared) activity, region, or economic characteristic that identifies the specific concentration of to the financial instrument (as defined). |
cm:Member |
[Member] (nonnum:domainItemType) |
For Period (duration) |
(no balance type) |
true |
us-gaap:FairValueConcentrationOfRiskIdentifyingCharacteristicsMember |