*

cm:Member: us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionAssetObligationMember
Standard label: Accumulated Defined Benefit Plans Adjustment, Net Transition Attributable to Parent [Member]
Name: us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionAssetObligationMember
Documentation: Accumulated other comprehensive income (loss) related to transition asset (obligation) component of defined benefit plans attributable to the parent.
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:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionAssetObligationMember

*

Labels
Label Role Language
Accumulated Defined Benefit Plans Adjustment, Net Transition Attributable to Parent [Member] http://www.xbrl.org/2003/role/label en-US

*

References
Reference Role Topic
FASB Accounting Standards Codification 220 10 45 14A http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 220 10 45 17B http://www.xbrl.org/2003/role/disclosureRef 220
FASB Accounting Standards Codification 220 10 45 10A (k) http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 715 20 50 1 (i),(j) http://fasb.org/us-gaap/role/ref/legacyRef 715
FASB Accounting Standards Codification 810 10 50 1A (c),(3) http://fasb.org/us-gaap/role/ref/legacyRef 810