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cm:Concept: us-gaap:FinancialInstrumentsSubjectToMandatoryRedemptionSettlementTermsImpactOfChangesInFairValueOfSharesOnNumberOfShares
Standard label: Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Impact of Changes in Fair Value of Shares on Number of Shares
Name: us-gaap:FinancialInstrumentsSubjectToMandatoryRedemptionSettlementTermsImpactOfChangesInFairValueOfSharesOnNumberOfShares
Documentation: Increase (decrease) in number of shares from change in fair value of issuer's equity shares affect on settlement amount. For example, but not limited to, additional shares for each $1 decrease in the fair value of one share.
Object type: cm:Concept
Data type: Shares (xbrli:sharesItemType)
Period type: As Of (instant)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:FinancialInstrumentsSubjectToMandatoryRedemptionSettlementTermsImpactOfChangesInFairValueOfSharesOnNumberOfShares

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Labels
Label Role Language
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Impact of Changes in Fair Value of Shares on Number of Shares http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 480 10 50 2 (b) http://fasb.org/us-gaap/role/ref/legacyRef 480