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cm:Member: us-gaap:InternalNoninvestmentGradeMember
Standard label: Internal Noninvestment Grade [Member]
Name: us-gaap:InternalNoninvestmentGradeMember
Documentation: Credit rating classification developed by the entity in which the probability of default is high and full and timely repayments are not expected.
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:InternalNoninvestmentGradeMember

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Labels
Label Role Language
Internal Noninvestment Grade [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 326 20 50 5 http://www.xbrl.org/2009/role/commonPracticeRef 326