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cm:Level3TextBlock: us-gaap:ScheduleOfQuantitativeInformationAboutSecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherTextBlock
Standard label: Assets that Continue to be Recognized, Transferred Financial Assets and Other Financial Assets Managed Together [Table Text Block]
Name: us-gaap:ScheduleOfQuantitativeInformationAboutSecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherTextBlock
Documentation: Tabular disclosure of transferred financial assets that continue to be recognized and other financial assets that it manages together with them. Includes, but is not limited to, delinquencies and credit losses, after recoveries.
Object type: cm:Level3TextBlock
Data type: Text Block (HTML) (nonnum:textBlockItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:ScheduleOfQuantitativeInformationAboutSecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherTextBlock

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Labels
Label Role Language
Assets that Continue to be Recognized, Transferred Financial Assets and Other Financial Assets Managed Together [Table Text Block] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 860 20 50 4 (e) http://fasb.org/us-gaap/role/ref/legacyRef 860