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cm:Concept: us-gaap:InterestAndDividendIncomeSecurities
Standard label: Interest and Dividend Income, Securities, Operating
Name: us-gaap:InterestAndDividendIncomeSecurities
Documentation: Amount of operating dividend and interest income, including amortization and accretion of premiums and discounts, on securities.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Credit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:InterestAndDividendIncomeSecurities

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Labels
Label Role Language
Interest and Dividend Income, Securities, Operating http://www.xbrl.org/2003/role/label en-US
Interest and Dividend Income, Securities, Operating, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic