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cm:Axis: us-gaap:DefinedBenefitPlanByPlanAssetCategoriesAxis
Standard label: Defined Benefit Plan, Plan Assets, Category [Axis]
Name: us-gaap:DefinedBenefitPlanByPlanAssetCategoriesAxis
Documentation: Information by defined benefit plan asset investment.
Object type: cm:Axis
Data type: Text/String (xbrli:stringItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: true
Workiva Wdesk Taxonomy Analyzer: us-gaap:DefinedBenefitPlanByPlanAssetCategoriesAxis

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Labels
Label Role Language
Defined Benefit Plan, Plan Assets, Category [Axis] 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/2003/role/disclosureRef 715
FASB Accounting Standards Codification 715 20 50 1 (d)(ii) http://www.xbrl.org/2003/role/exampleRef 715
FASB Accounting Standards Codification 715 20 50 1 (d)(iv)(01) http://www.xbrl.org/2003/role/exampleRef 715
FASB Accounting Standards Codification 715 20 50 1 (n) http://www.xbrl.org/2009/role/commonPracticeRef 715
FASB Accounting Standards Codification 715 20 55 17 http://www.xbrl.org/2003/role/exampleRef 715