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cm:Member: us-gaap:FairValueConcentrationOfRiskAllFinancialInstrumentsMember
Standard label: Fair Value, Concentration of Risk, All Financial Instruments [Member]
Name: us-gaap:FairValueConcentrationOfRiskAllFinancialInstrumentsMember
Documentation: Provides the general information items required or determined to be disclosed with respect to all significant concentrations of credit risk arising from all financial instruments (as defined), whether from an individual counterparty or groups of counterparties.
Object type: cm:Member
Data type: [Member] (nonnum:domainItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: true
Workiva Wdesk Taxonomy Analyzer: us-gaap:FairValueConcentrationOfRiskAllFinancialInstrumentsMember

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Labels
Label Role Language
Fair Value, Concentration of Risk, All Financial Instruments [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 825 10 50 21 http://fasb.org/us-gaap/role/ref/legacyRef 825