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cm:Concept: us-gaap:FairValueAssetLiabilityRecurringBasisStillHeldUnrealizedGainLossStatementOfOtherComprehensiveIncomeExtensibleList
Standard label: Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Other Comprehensive Income [Extensible List]
Name: us-gaap:FairValueAssetLiabilityRecurringBasisStillHeldUnrealizedGainLossStatementOfOtherComprehensiveIncomeExtensibleList
Documentation: Indicates line item in statement in which other comprehensive income (OCI) is reported that includes unrealized gain (loss) from asset (liability) measured at fair value using unobservable input (level 3) and still held.
Object type: cm:Concept
Data type: srt-types:extensibleListItemType
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:FairValueAssetLiabilityRecurringBasisStillHeldUnrealizedGainLossStatementOfOtherComprehensiveIncomeExtensibleList

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Labels
Label Role Language
Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Other Comprehensive Income [Extensible List] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 820 10 50 2 (d) http://www.xbrl.org/2003/role/disclosureRef 820