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cm:Concept: us-gaap:UnrealizedGainLossOnPriceRiskCashFlowDerivativesBeforeTax
Standard label: Unrealized Gain (Loss) on Price Risk Cash Flow Derivatives, before Tax
Name: us-gaap:UnrealizedGainLossOnPriceRiskCashFlowDerivativesBeforeTax
Documentation: Amount of unrealized gain (loss) arising from the change in fair value of price risk derivatives designated as cash flow hedging instruments recorded in accumulated other comprehensive income in the period, before taxes, to the extent that the cash flow hedge is determined to be effective.
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:UnrealizedGainLossOnPriceRiskCashFlowDerivativesBeforeTax

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Labels
Label Role Language
Unrealized Gain (Loss) on Price Risk Cash Flow Derivatives, before Tax http://www.xbrl.org/2003/role/label en-US
Unrealized Gain (Loss) on Price Risk Cash Flow Derivatives, before Tax, 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 4C (b) http://fasb.org/us-gaap/role/ref/legacyRef 815