cm:Concept: us-gaap:PurposeOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments
Purpose of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments |
us-gaap:PurposeOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments |
Description of the purpose of activity relating to foreign currency derivatives not designated as hedging instruments. For example, some derivatives are used to hedge risks but are not designated as hedges for accounting purposes. |
cm:Concept |
Text/String (xbrli:stringItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:PurposeOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments |