cm:Concept: us-gaap:DiscussionOfObjectivesForUsingForeignCurrencyDerivativeInstruments
| Discussion of Objectives for Using Foreign Currency Derivative Instruments |
| us-gaap:DiscussionOfObjectivesForUsingForeignCurrencyDerivativeInstruments |
| Description of the reasons for holding or issuing foreign currency exchange rate derivative instruments. Includes discussion of the objectives for holding the instruments, the context needed to understand those objectives, and the strategies for achieving those objectives. Disclosures may be more meaningful if such objectives and strategies are described in the context of an entity's overall risk management profile. |
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| Text/String (xbrli:stringItemType) |
| For Period (duration) |
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| us-gaap:DiscussionOfObjectivesForUsingForeignCurrencyDerivativeInstruments |