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Subsequent Events - Additional Information (Detail)
$ / shares in Units, $ in Millions
Mar. 09, 2018
Installment
$ / shares
Mar. 14, 2017
$ / shares
Apr. 10, 2018
MXN ($)
Disclosure of non-adjusting events after reporting period [line items]      
Dividends paid per share   $ 3.35  
Subsequent Event 1 [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Dividends paid per share $ 3.35    
Number of dividend payment installments | Installment 2    
Bank loans received | $     $ 10,100