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cm:Concept: us-gaap:PledgedAssetsSeparatelyReportedOnStatementOfFinancialPositionAtFairValue
Standard label: Pledged Assets Separately Reported, Other, on Statement of Financial Position, at Fair Value
Name: us-gaap:PledgedAssetsSeparatelyReportedOnStatementOfFinancialPositionAtFairValue
Documentation: The sum of the fair values, as of the date of each statement of financial position presented, of assets which are owned but transferred to serve as collateral for the payment of debt obligations, primarily secured borrowings, repurchase agreements or other current or potential obligations, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: As Of (instant)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:PledgedAssetsSeparatelyReportedOnStatementOfFinancialPositionAtFairValue

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Labels
Label Role Language
Pledged Assets Separately Reported, Other, on Statement of Financial Position, at Fair Value http://www.xbrl.org/2003/role/label en-US
Pledged Assets Separately Reported, Other, on Statement of Financial Position, at Fair Value, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 860 30 45 1 http://fasb.org/us-gaap/role/ref/legacyRef 860