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cm:Concept: us-gaap:FairValueConcentrationOfRiskLiabilitiesRelatedToInvestmentContracts
Standard label: Fair Value, Concentration of Risk, Liabilities Related to Investment Contracts
Name: us-gaap:FairValueConcentrationOfRiskLiabilitiesRelatedToInvestmentContracts
Documentation: This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: As Of (instant)
Balance type: Credit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:FairValueConcentrationOfRiskLiabilitiesRelatedToInvestmentContracts

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Labels
Label Role Language
Fair Value, Concentration of Risk, Liabilities Related to Investment Contracts http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 944 210 S99 1 (SX 210.7-03(14)) http://fasb.org/us-gaap/role/ref/legacyRef 944
FASB Accounting Standards Codification 944 825 25 2 http://fasb.org/us-gaap/role/ref/legacyRef 944