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Improvements to Concession Assets - Summary of Additions for Investment and Amortization of Improvements to Concession Assets (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Apr. 01, 2015
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Disclosure of detailed information about service concession arrangements [Line Items]          
Investment   $ 9,944,022 $ 8,912,544 $ 7,294,318 $ 5,148,431
Amortization   (1,119,102) (1,047,507) (949,711)  
Construction in-progress [Member]          
Disclosure of detailed information about service concession arrangements [Line Items]          
Investment   2,376,483 1,707,742 445,924 203,950
Business combination [Member]          
Disclosure of detailed information about service concession arrangements [Line Items]          
Investment $ 2,272,125        
Amortization (462,719)        
Net amounts 1,809,406        
Business combination [Member] | Construction in-progress [Member]          
Disclosure of detailed information about service concession arrangements [Line Items]          
Investment 7,523        
Net amounts 7,523        
Improvements to concession assets [Member]          
Disclosure of detailed information about service concession arrangements [Line Items]          
Investment   $ 11,779,768 $ 10,902,668 $ 9,909,384 $ 7,019,188
Improvements to concession assets [Member] | Business combination [Member]          
Disclosure of detailed information about service concession arrangements [Line Items]          
Investment 2,264,602        
Amortization (462,719)        
Net amounts $ 1,801,883