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cm:Level3TextBlock: us-gaap:TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock
Standard label: Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table Text Block]
Name: us-gaap:TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock
Documentation: Tabular disclosure of the nature and risks of short-term collateralized financing obtained through repurchase agreements, securities lending transactions and repurchase-to-maturity transactions, accounted for as secured borrowings.
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:TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock

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Labels
Label Role Language
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [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 30 50 7 http://fasb.org/us-gaap/role/ref/legacyRef 860