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cm:Concept: us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Standard label: Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax
Name: us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Documentation: Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.
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:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax

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Labels
Label Role Language
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax http://www.xbrl.org/2003/role/label en-US
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 205 20 45 3B http://fasb.org/us-gaap/role/ref/legacyRef 205
FASB Accounting Standards Codification 205 20 50 5C (b)(2) http://fasb.org/us-gaap/role/ref/legacyRef 205
FASB Accounting Standards Codification 205 20 50 1 (b) http://fasb.org/us-gaap/role/ref/legacyRef 205
FASB Accounting Standards Codification 205 20 45 3 http://fasb.org/us-gaap/role/ref/legacyRef 205