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cm:Concept: us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossNet
Standard label: Available-for-sale Securities, Gross Realized Gain (Loss)
Name: us-gaap:AvailableForSaleSecuritiesGrossRealizedGainLossNet
Documentation: This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity 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:AvailableForSaleSecuritiesGrossRealizedGainLossNet

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Labels
Label Role Language
Available-for-sale Securities, Gross Realized Gain (Loss) http://www.xbrl.org/2003/role/label en-US
Available-for-sale Securities, Gross Realized Gain (Loss), Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic