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cm:Concept: us-gaap:PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAtFairValueNet
Standard label: Price Risk Derivative Instruments Not Designated as Hedging Instruments, at Fair Value, Net
Name: us-gaap:PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAtFairValueNet
Documentation: Fair value as of the balance sheet date of all price risk derivatives not designated as hedging instruments.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: As Of (instant)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAtFairValueNet

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Labels
Label Role Language
Price Risk Derivative Instruments Not Designated as Hedging Instruments, at Fair Value, Net http://www.xbrl.org/2003/role/label en-US
Price Risk Derivative Instruments Not Designated as Hedging Instruments, at Fair Value, 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 45 5 http://fasb.org/us-gaap/role/ref/legacyRef 815