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cm:Concept: us-gaap:SiteContingencyLossExposureNotAccruedBestEstimate
Standard label: Site Contingency, Loss Exposure Not Accrued, Best Estimate
Name: us-gaap:SiteContingencyLossExposureNotAccruedBestEstimate
Documentation: Best estimate of the loss exposure for reasonably possible environmental contingencies at an individual site for which no accrual has been recorded.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:SiteContingencyLossExposureNotAccruedBestEstimate

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Labels
Label Role Language
Site Contingency, Loss Exposure Not Accrued, Best Estimate 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 (c),(d)(2) http://fasb.org/us-gaap/role/ref/legacyRef 410
FASB Accounting Standards Codification 410 30 50 10 (d)(2) http://www.xbrl.org/2003/role/recommendedDisclosureRef 410