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Improvements to Concession Assets - Summary of Improvements to Concession Assets (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of detailed information about service concession arrangements [Line Items]      
Beginning balance $ 10,982,860 $ 9,944,022 $ 8,912,544
Additions 1,194,803 1,033,311 1,169,139
Divestitures   (402) (23,497)
Currency translation effect (114,280) 5,929 (114,164)
Ending balance 12,063,383 10,982,860 9,944,022
Construction in-progress [Member]      
Disclosure of detailed information about service concession arrangements [Line Items]      
Beginning balance 2,382,118 2,376,483 1,707,742
Additions 1,218,757 1,661,060 1,417,156
Transfers (2,804,400) (1,669,128) (746,710)
Currency translation effect (14,470) 13,703 (1,705)
Ending balance 782,005 2,382,118 2,376,483
Improvements to concession assets [Member]      
Disclosure of detailed information about service concession arrangements [Line Items]      
Beginning balance 13,441,649 11,779,768 10,902,668
Additions 760,726 6,366 304,042
Divestitures (21,977) (7,919) (30,212)
Transfers 2,804,400 1,669,128 746,710
Currency translation effect (141,702) (5,694) (143,440)
Ending balance 16,843,096 13,441,649 11,779,768
Total investment [Member]      
Disclosure of detailed information about service concession arrangements [Line Items]      
Beginning balance 15,823,767 14,156,251 12,610,410
Additions 1,979,483 1,667,426 1,721,198
Divestitures (21,977) (7,919) (30,212)
Currency translation effect (156,172) 8,009 (145,145)
Ending balance 17,625,101 15,823,767 14,156,251
Accumulated amortization [Member]      
Disclosure of detailed information about service concession arrangements [Line Items]      
Beginning balance (4,840,907) (4,212,229) (3,697,866)
Additions (784,680) (634,115) (552,059)
Divestitures 21,977 7,517 6,715
Currency translation effect 41,892 (2,080) 30,981
Ending balance $ (5,561,718) $ (4,840,907) $ (4,212,229)