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cm:Concept: us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent
Standard label: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent
Name: us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent
Documentation: Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, on foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.
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:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent

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Labels
Label Role Language
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent http://www.xbrl.org/2003/role/label en-US
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent, Total http://www.xbrl.org/2003/role/totalLabel en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 810 10 50 1A (c)(3) http://fasb.org/us-gaap/role/ref/legacyRef 810
FASB Accounting Standards Codification 810 10 45 19 http://fasb.org/us-gaap/role/ref/legacyRef 810
FASB Accounting Standards Codification 810 10 45 20 http://fasb.org/us-gaap/role/ref/legacyRef 810