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cm:Concept: us-gaap:DebtSecuritiesHeldToMaturityOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Standard label: Debt Securities, Held-to-maturity, Originated Five or More Years before Latest Fiscal Year
Name: us-gaap:DebtSecuritiesHeldToMaturityOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Documentation: Amount of investment in debt security measured at amortized cost (held-to-maturity), originated five or more years prior to latest fiscal year.
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:DebtSecuritiesHeldToMaturityOriginatedFiveOrMoreYearsBeforeLatestFiscalYear

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Labels
Label Role Language
Debt Securities, Held-to-maturity, Originated Five or More Years before Latest Fiscal Year http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 326 20 50 6 http://www.xbrl.org/2003/role/disclosureRef 326