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cm:Concept: us-gaap:DerivativeGainLossOnDerivativeNet
Standard label: Derivative, Gain (Loss) on Derivative, Net
Name: us-gaap:DerivativeGainLossOnDerivativeNet
Documentation: Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Credit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:DerivativeGainLossOnDerivativeNet

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Labels
Label Role Language
Derivative, Gain (Loss) on Derivative, Net http://www.xbrl.org/2003/role/label en-US
Derivative, Gain (Loss) on Derivative, Net, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 815 10 50 4A (b)(1) http://www.xbrl.org/2009/role/commonPracticeRef 815