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cm:Concept: us-gaap:GainLossFromHedgedFirmCommitmentNotQualifyingAsFairValueHedgeNet
Standard label: Gain (Loss) from Hedged Firm Commitment Not Qualifying as Fair Value Hedge, Net
Name: us-gaap:GainLossFromHedgedFirmCommitmentNotQualifyingAsFairValueHedgeNet
Documentation: Amount of net gain (loss) recognized in earnings when a hedged firm commitment no longer qualifies as a fair value hedge.
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:GainLossFromHedgedFirmCommitmentNotQualifyingAsFairValueHedgeNet

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Labels
Label Role Language
Gain (Loss) from Hedged Firm Commitment Not Qualifying as Fair Value Hedge, Net http://www.xbrl.org/2003/role/label en-US
Gain (Loss) from Hedged Firm Commitment Not Qualifying as Fair Value Hedge, 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 4C (g) http://www.xbrl.org/2003/role/disclosureRef 815
FASB Accounting Standards Codification 815 25 50 1 (b) http://fasb.org/us-gaap/role/ref/legacyRef 815

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Roll Up Relations
Part Of Roll Up:
us-gaap:GainLossOnFairValueHedgesRecognizedInEarnings