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Income Taxes - Summary of Deferred Income Tax from Tax Loss Carryforwards (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure Of Tax Loss Carryforwards [Abstract]      
Tax loss carryforwards $ 1,162,441 $ 1,278,180 $ 1,517,650
Unrecognized tax loss carryforwards (784,917) (708,212) (737,766)
Recognized tax loss carryforwards $ 377,524 $ 569,968 $ 779,884