cm:Concept: us-gaap:CashAndSecuritiesSegregatedUnderCommodityExchangeActDescription
Cash and Securities Segregated under Commodity Exchange Act, Description (Deprecated 2019-01-31) |
us-gaap:CashAndSecuritiesSegregatedUnderCommodityExchangeActDescription |
Description of cash and securities deposited in a special reserve account for the exclusive benefit of customers pursuant to the Commodity Exchange Act. |
cm:Concept |
Text/String (xbrli:stringItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:CashAndSecuritiesSegregatedUnderCommodityExchangeActDescription |