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Income Taxes - Summary of Deferred Income Tax from Tax Loss Carryforwards (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure Of Tax Loss Carryforwards [Abstract]      
Tax loss carryforwards $ 1,278,180 $ 1,517,650 $ 1,131,181
Unrecognized tax loss carryforwards (708,212) (737,766) (673,415)
Recognized tax loss carryforwards $ 569,968 $ 779,884 $ 457,766