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cm:Concept: us-gaap:PaymentsToAcquireAvailableForSaleSecurities
Standard label: Payments to Acquire Available-for-sale Securities
Name: us-gaap:PaymentsToAcquireAvailableForSaleSecurities
Documentation: The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.
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:PaymentsToAcquireAvailableForSaleSecurities

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Labels
Label Role Language
Payments to Acquire Available-for-sale Securities http://www.xbrl.org/2003/role/label en-US
Payments to Acquire Available-for-sale Securities, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 230 10 45 13 (a),(b) http://fasb.org/us-gaap/role/ref/legacyRef 230
FASB Accounting Standards Codification 320 10 45 11 http://fasb.org/us-gaap/role/ref/legacyRef 320