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cm:Abstract: us-gaap:GainLossOnDerivativeInstrumentsNetPretaxAbstract
Standard label: Gain (Loss) on Derivative Instruments, Net, Pretax [Abstract]
Name: us-gaap:GainLossOnDerivativeInstrumentsNetPretaxAbstract
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Object type: cm:Abstract
Data type: Text/String (xbrli:stringItemType)
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Abstract: true
Workiva Wdesk Taxonomy Analyzer: us-gaap:GainLossOnDerivativeInstrumentsNetPretaxAbstract

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Gain (Loss) on Derivative Instruments, Net, Pretax [Abstract] http://www.xbrl.org/2003/role/label en-US

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