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cm:Concept: us-gaap:IncreaseDecreaseInFrequentFlyerLiability
Standard label: Increase (Decrease) in Frequent Flyer Liability
Name: us-gaap:IncreaseDecreaseInFrequentFlyerLiability
Documentation: The increase (decrease) during the reporting period in the amount of unearned revenue related to the estimated incremental cost for points or miles outstanding and awards that expect to be redeemed through customer loyalty programs.
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:IncreaseDecreaseInFrequentFlyerLiability

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Labels
Label Role Language
Increase (Decrease) in Frequent Flyer Liability http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 230 10 45 28 (a) http://fasb.org/us-gaap/role/ref/otherTransitionRef 230