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cm:Concept: us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
Standard label: Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
Name: us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
Documentation: Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.
Object type: cm:Concept
Data type: Percent (num:percentItemType)
Period type: As Of (instant)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

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Labels
Label Role Language
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 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)(i) http://www.xbrl.org/2003/role/disclosureRef 715
FASB Accounting Standards Codification 715 20 55 17 http://www.xbrl.org/2003/role/exampleRef 715