cm:Member: us-gaap:ConvertiblePreferredStockSubjectToMandatoryRedemptionMember
Convertible Preferred Stock Subject to Mandatory Redemption [Member] |
us-gaap:ConvertiblePreferredStockSubjectToMandatoryRedemptionMember |
Shares that embody an unconditional obligation requiring the issuer to redeem the securities by transferring the assets upon an event that is certain to occur. |
cm:Member |
[Member] (nonnum:domainItemType) |
For Period (duration) |
(no balance type) |
true |
us-gaap:ConvertiblePreferredStockSubjectToMandatoryRedemptionMember |