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Employee benefits - Analysis of net period cost (Details) - MXN ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Employee benefits |  |  |
Current service cost | $ 3,657 | $ 2,421 | $ 2,012
Interest cost on benefit obligation | 1,000 | 701 | 537
Net period cost | $ 4,657 | $ 3,122 | $ 2,549

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- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of post-employment benefit expense relating to defined benefit plans. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 5 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_5&doctype=Standard -URIDate 2017-03-09 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of interest expense recognized related to defined benefit plan. + References No definition available. + Details
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Namespace Prefix: | vlrs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of service cost expense recognized related to defined benefit plan. + References No definition available. + Details
Name: | vlrs_DefinedBenefitPlansServiceCost
Namespace Prefix: | vlrs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration