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cm:Concept: us-gaap:AvailableForSaleSecuritiesAmortizedCost
Standard label: Available-for-sale Securities, Amortized Cost Basis
Name: us-gaap:AvailableForSaleSecuritiesAmortizedCost
Documentation: This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.
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:AvailableForSaleSecuritiesAmortizedCost

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Labels
Label Role Language
Available-for-sale Securities, Amortized Cost Basis http://www.xbrl.org/2003/role/label en-US
Available-for-sale Securities, Amortized Cost Basis, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic