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cm:Concept: us-gaap:DebtSecuritiesHeldToMaturityTransferAmount
Standard label: Debt Securities, Held-to-maturity, Transfer, Amount
Name: us-gaap:DebtSecuritiesHeldToMaturityTransferAmount
Documentation: Amount of investment in debt security, measured at amortized cost, transferred to investment in debt security, measured at fair value, with change in fair value recognized in other comprehensive income (available-for-sale) and net income (trading).
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:DebtSecuritiesHeldToMaturityTransferAmount

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Labels
Label Role Language
Debt Securities, Held-to-maturity, Transfer, Amount http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 320 10 50 10 (a) http://www.xbrl.org/2003/role/disclosureRef 320