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cm:Concept: us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareInvesteeSignificantInvestmentStartegiesDescription
Standard label: Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Investee Significant Investment Strategies, Description
Name: us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareInvesteeSignificantInvestmentStartegiesDescription
Documentation: This item describes the investment strategies of an investee for those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).
Object type: cm:Concept
Data type: Text/String (xbrli:stringItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareInvesteeSignificantInvestmentStartegiesDescription

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Labels
Label Role Language
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Investee Significant Investment Strategies, Description http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 820 10 50 6A (a) http://fasb.org/us-gaap/role/ref/legacyRef 820