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cm:Concept: us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Standard label: Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Name: us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Documentation: Amount after tax of reclassification adjustments of other comprehensive income (loss).
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

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Labels
Label Role Language
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 220 10 45 14A http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 220 10 45 17B http://www.xbrl.org/2003/role/disclosureRef 220
FASB Accounting Standards Codification 220 10 55 15 http://fasb.org/us-gaap/role/ref/legacyRef 220

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