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cm:Concept: us-gaap:InvestmentIncomeNet
Standard label: Investment Income, Net
Name: us-gaap:InvestmentIncomeNet
Documentation: Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Credit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:InvestmentIncomeNet

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Labels
Label Role Language
Investment Income, Net http://www.xbrl.org/2003/role/label en-US
Investment Income, Net, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 220 10 S99 2 (SX 210.5-03.7(a),(b)) http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 220 10 S99 2 (SX 210.5-03.8) http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 220 10 S99 2 (SX 210.5-03.9) http://fasb.org/us-gaap/role/ref/legacyRef 220

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