cm:Table: us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Security Owned and Sold, Not yet Purchased, at Fair Value [Table] |
us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValueTable |
Schedule of financial instruments held by a broker-dealer for their own account (proprietary securities) for trading or investment purposes that are carried at fair value including securities sold, not yet purchased. |
cm:Table |
Text/String (xbrli:stringItemType) |
For Period (duration) |
(no balance type) |
true |
us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValueTable |