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cm:Concept: us-gaap:ContingentlyConvertibleSecuritiesIncludedInDilutedEarningsPerShare
Standard label: Contingently Convertible Securities Included in Diluted Earnings Per Share [true false]
Name: us-gaap:ContingentlyConvertibleSecuritiesIncludedInDilutedEarningsPerShare
Documentation: Indicates (true false) whether share issuable in conversion of contingently convertible security is included in calculation of diluted earnings per share.
Object type: cm:Concept
Data type: Yes/No (xbrli:booleanItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:ContingentlyConvertibleSecuritiesIncludedInDilutedEarningsPerShare

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Labels
Label Role Language
Contingently Convertible Securities Included in Diluted Earnings Per Share [true false] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 505 10 50 9 http://www.xbrl.org/2003/role/disclosureRef 505