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cm:Member: us-gaap:AssetImpairmentForRegulatoryActionMember
Standard label: Asset Impairment for Regulatory Action [Member]
Name: us-gaap:AssetImpairmentForRegulatoryActionMember
Documentation: Rate action of a regulator resulting in capitalization or accrual of asset impairment charges.
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:AssetImpairmentForRegulatoryActionMember

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Labels
Label Role Language
Asset Impairment for Regulatory Action [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 980 340 35 1 http://fasb.org/us-gaap/role/ref/legacyRef 980
FASB Accounting Standards Codification 980 340 25 1 http://fasb.org/us-gaap/role/ref/legacyRef 980