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Trade Accounts Receivable - Summary of Trade Accounts Receivable (Detail) - MXN ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure Of Trade Accounts Receivable [Abstract]      
Trade accounts receivable $ 1,444,037 $ 1,028,898 $ 638,166
Allowance for doubtful accounts (48,675) (31,528) (30,622)
Trade accounts receivable $ 1,395,362 $ 997,370 $ 607,544