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cm:Concept: us-gaap:InvestmentSoldNotYetPurchasedUnrestrictedCarryingValuePerUnitAtDateOfPurchasePriceAgreement
Standard label: Investment Sold, Not yet Purchased, Unrestricted, Carrying Value Per Unit at Date of Purchase Price Agreement
Name: us-gaap:InvestmentSoldNotYetPurchasedUnrestrictedCarryingValuePerUnitAtDateOfPurchasePriceAgreement
Documentation: The carrying value per unit of investment of unrestricted investment of the same issue as the restricted investment during the preceding year at the date the purchase price was agreed.
Object type: cm:Concept
Data type: srt-types:perUnitItemType
Period type: As Of (instant)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:InvestmentSoldNotYetPurchasedUnrestrictedCarryingValuePerUnitAtDateOfPurchasePriceAgreement

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Labels
Label Role Language
Investment Sold, Not yet Purchased, Unrestricted, Carrying Value Per Unit at Date of Purchase Price Agreement http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 946 320 S99 1 (SX 210.12-12(6)(b)(1))) http://fasb.org/us-gaap/role/ref/legacyRef 946
FASB Accounting Standards Codification 946 320 S99 4 (SX 210.12-12C(9)(b)(1)) http://fasb.org/us-gaap/role/ref/legacyRef 946