cm:Member: us-gaap:SeriesFPreferredStockMember
Series F Preferred Stock [Member] |
us-gaap:SeriesFPreferredStockMember |
Outstanding nonredeemable series F preferred stock or outstanding series F preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. |
cm:Member |
[Member] (nonnum:domainItemType) |
For Period (duration) |
(no balance type) |
true |
us-gaap:SeriesFPreferredStockMember |