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cm:Concept: us-gaap:UndistributedEarningsLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic
Standard label: Undistributed Earnings (Loss) from Discontinued Operations Available to Common Shareholders, Basic
Name: us-gaap:UndistributedEarningsLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic
Documentation: Amount of undistributed earnings (loss) from discontinued operations allocated to common stock as if earnings had been distributed. Excludes distributed earnings.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Credit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:UndistributedEarningsLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic

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Labels
Label Role Language
Undistributed Earnings (Loss) from Discontinued Operations Available to Common Shareholders, Basic http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 260 10 45 60B (b) http://fasb.org/us-gaap/role/ref/legacyRef 260
FASB Accounting Standards Codification 260 10 45 65 http://fasb.org/us-gaap/role/ref/legacyRef 260
FASB Accounting Standards Codification 260 10 45 66 http://fasb.org/us-gaap/role/ref/legacyRef 260
FASB Accounting Standards Codification 270 10 S99 1 (b)(5) http://fasb.org/us-gaap/role/ref/legacyRef 270