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Investment in associate - Schedule of Condensed Statement of Comprehensive (Loss ) Profit (Detail) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure Of Significant Investments In Associates [Line Items]      
Revenues $ 12,365,918 $ 11,107,561 $ 8,106,909
Profit of the year 4,731,081 3,353,559 2,770,777
SCL Terminal Aerea De Santiago S. A. [Member]      
Disclosure Of Significant Investments In Associates [Line Items]      
Revenues 56,373 13,629 674,027
Costs, expenses and income taxes 37,043 93,030 766,810
Profit of the year $ 19,330 $ (79,401) $ (92,783)