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cm:Concept: us-gaap:HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue
Standard label: Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value
Name: us-gaap:HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue
Documentation: Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date.
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:HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue

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Labels
Label Role Language
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value http://www.xbrl.org/2003/role/label en-US
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 320 10 50 5 (f) http://fasb.org/us-gaap/role/ref/legacyRef 320
FASB Accounting Standards Codification 942 320 50 3 http://fasb.org/us-gaap/role/ref/legacyRef 942

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Roll Up Relations
Part Of Roll Up:
us-gaap:HeldToMaturitySecuritiesFairValue