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cm:Concept: us-gaap:DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment
Standard label: Debt Securities, Available-for-sale, Realized Loss, Excluding Other-than-temporary Impairment
Name: us-gaap:DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment
Documentation: Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), excluding other-than-temporary impairment (OTTI).
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:DebtSecuritiesAvailableForSaleRealizedLossExcludingOtherThanTemporaryImpairment

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Labels
Label Role Language
Debt Securities, Available-for-sale, Realized Loss, Excluding Other-than-temporary Impairment http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic