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Cost of Services - Summary of Cost of Services (Detail) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Cost Of Service [Abstract]      
Employee cost (Note 24) $ 877,068 $ 773,630 $ 663,360
Maintenance 578,510 528,929 505,352
Safety, security and insurance 428,208 386,079 317,023
Utilities 380,370 334,994 278,895
Other 480,708 430,090 345,777
Cost of services $ 2,744,864 $ 2,453,722 $ 2,110,407