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cm:Axis: us-gaap:EnvironmentalRemediationContingencyAxis
Standard label: Environmental Remediation Contingency [Axis]
Name: us-gaap:EnvironmentalRemediationContingencyAxis
Documentation: Information by type of environmental remediation contingency.
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:EnvironmentalRemediationContingencyAxis

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Labels
Label Role Language
Environmental Remediation Contingency [Axis] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 410 30 50 7 http://fasb.org/us-gaap/role/ref/legacyRef 410
FASB Accounting Standards Codification 410 30 50 10 (d) http://fasb.org/us-gaap/role/ref/legacyRef 410
FASB Accounting Standards Codification 410 30 50 11 http://fasb.org/us-gaap/role/ref/legacyRef 410
FASB Accounting Standards Codification 410 30 50 12 http://fasb.org/us-gaap/role/ref/legacyRef 410
FASB Accounting Standards Codification 450 20 S99 1 (SAB TOPIC 5.Y.Q2) http://fasb.org/us-gaap/role/ref/legacyRef 450