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cm:Member: us-gaap:WarrantsAndRightsSubjectToMandatoryRedemptionMember
Standard label: Warrants and Rights Subject to Mandatory Redemption [Member]
Name: us-gaap:WarrantsAndRightsSubjectToMandatoryRedemptionMember
Documentation: Warrants and rights that embody an unconditional obligation requiring the issuer to redeem the instrument by transferring its assets at a specified or determinable date (or dates) or upon an event certain to occur.
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:WarrantsAndRightsSubjectToMandatoryRedemptionMember

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Labels
Label Role Language
Warrants and Rights Subject to Mandatory Redemption [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 480 10 50 1 http://fasb.org/us-gaap/role/ref/legacyRef 480
FASB Accounting Standards Codification 480 10 50 2 http://fasb.org/us-gaap/role/ref/legacyRef 480