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cm:Concept: us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax
Standard label: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax
Name: us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax
Documentation: Amount before tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.
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:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax

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Labels
Label Role Language
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before 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 17A http://www.xbrl.org/2003/role/disclosureRef 220
FASB Accounting Standards Codification 220 10 45 11 http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 220 10 45 15 http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 220 10 45 16 http://fasb.org/us-gaap/role/ref/legacyRef 220
FASB Accounting Standards Codification 830 30 45 20 (d) http://fasb.org/us-gaap/role/ref/legacyRef 830