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cm:Concept: us-gaap:FairValueEquityLevel1ToLevel2TransfersAmount
Standard label: Fair Value, Equity, Level 1 to Level 2 Transfers, Amount
Name: us-gaap:FairValueEquityLevel1ToLevel2TransfersAmount
Documentation: Amount of transfers of financial instruments classified in shareholders' equity measured on a recurring basis out of level 1 of the fair value hierarchy into level 2.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: As Of (instant)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:FairValueEquityLevel1ToLevel2TransfersAmount

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Labels
Label Role Language
Fair Value, Equity, Level 1 to Level 2 Transfers, Amount 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 (bb) http://fasb.org/us-gaap/role/ref/legacyRef 820