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cm:Member: us-gaap:DefinedBenefitPlanEquitySecuritiesCommonStockMember
Standard label: Defined Benefit Plan, Equity Securities, Common Stock [Member]
Name: us-gaap:DefinedBenefitPlanEquitySecuritiesCommonStockMember
Documentation: Security representing ownership in corporation or other legal entity, for which ownership is represented by share of common stock; in which defined benefit plan asset is invested.
Object type: cm:Member
Data type: [Member] (nonnum:domainItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: true
Workiva Wdesk Taxonomy Analyzer: us-gaap:DefinedBenefitPlanEquitySecuritiesCommonStockMember

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Labels
Label Role Language
Defined Benefit Plan, Equity Securities, Common Stock [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 715 20 50 1 (d)(ii) http://www.xbrl.org/2009/role/commonPracticeRef 715