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cm:Concept: us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax
Standard label: Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax
Name: us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax
Documentation: Amount of tax expense (benefit), after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax

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Labels
Label Role Language
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax http://www.xbrl.org/2003/role/label en-US
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 220 10 45 10A (d) http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 220 10 45 12 http://fasb.org/us-gaap/role/ref/legacyRef 220