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cm:Concept: us-gaap:SiteContingencyLossExposureInExcessOfAccrualDescription
Standard label: Site Contingency, Loss Exposure in Excess of Accrual, Description
Name: us-gaap:SiteContingencyLossExposureInExcessOfAccrualDescription
Documentation: Nature of the reasonably possible loss contingency and estimate of the reasonably possible loss exposure in excess of the amount accrued for environmental loss contingencies at an individual site.
Object type: cm:Concept
Data type: Text/String (xbrli:stringItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:SiteContingencyLossExposureInExcessOfAccrualDescription

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Labels
Label Role Language
Site Contingency, Loss Exposure in Excess of Accrual, Description http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 410 30 50 10 (d)(2) http://fasb.org/us-gaap/role/ref/legacyRef 410