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cm:Concept: us-gaap:IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights
Standard label: Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights
Name: us-gaap:IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights
Documentation: This element represents nonvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid). Basic and dilutive earnings per share are generally disclosed for such shares using the two-class method.
Object type: cm:Concept
Data type: Shares (xbrli:sharesItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights

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Labels
Label Role Language
Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 260 10 45 59A http://fasb.org/us-gaap/role/ref/legacyRef 260
FASB Accounting Standards Codification 260 10 45 61A http://fasb.org/us-gaap/role/ref/legacyRef 260
FASB Accounting Standards Codification 260 10 45 68B http://fasb.org/us-gaap/role/ref/legacyRef 260
FASB Accounting Standards Codification 260 10 45 60A http://fasb.org/us-gaap/role/ref/legacyRef 260
FASB Accounting Standards Codification 260 10 45 60B http://fasb.org/us-gaap/role/ref/legacyRef 260