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cm:Concept: us-gaap:ProceedsDebtSecuritiesAvailableForSalePreviouslyWrittenOffRecovery
Standard label: Proceeds, Debt Securities, Available-for-sale, Previously Written Off, Recovery
Name: us-gaap:ProceedsDebtSecuritiesAvailableForSalePreviouslyWrittenOffRecovery
Documentation: Amount of cash inflow from recovery of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), previously written off.
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:ProceedsDebtSecuritiesAvailableForSalePreviouslyWrittenOffRecovery

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Labels
Label Role Language
Proceeds, Debt Securities, Available-for-sale, Previously Written Off, Recovery http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 230 10 45 12 (a) http://www.xbrl.org/2009/role/commonPracticeRef 230