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cm:Member: us-gaap:FairValueInputsLevel1Member
Standard label: Fair Value, Inputs, Level 1 [Member]
Name: us-gaap:FairValueInputsLevel1Member
Documentation: Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.
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:FairValueInputsLevel1Member

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Labels
Label Role Language
Fair Value, Inputs, Level 1 [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 715 20 50 1 (d)(ii) http://www.xbrl.org/2003/role/exampleRef 715
FASB Accounting Standards Codification 715 20 50 1 (d)(iv)(01) http://www.xbrl.org/2003/role/disclosureRef 715
FASB Accounting Standards Codification 715 20 50 1 (d)(iv)(01) http://www.xbrl.org/2003/role/exampleRef 715
FASB Accounting Standards Codification 715 20 55 17 http://www.xbrl.org/2003/role/exampleRef 715
FASB Accounting Standards Codification 820 10 50 2 (b) http://www.xbrl.org/2003/role/disclosureRef 820
FASB Accounting Standards Codification 860 20 50 3 (bb)(1) http://www.xbrl.org/2003/role/disclosureRef 860