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Income Taxes - Schedule of Domestic Tax Rate (Detail)
 12 Months Ended
Oct. 19, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Major components of tax expense (income) [abstract]        
Mexican statutory income tax rate 8.00% 30.00% 30.00% 30.00%
Difference between book and tax inflationary values and translation effects   (6.20%) (2.40%) (1.30%)
Annual inflation tax adjustment   0.40% 0.60% (1.50%)
Difference between statutory income tax rates   1.80% 1.20% 0.40%
Repatriation of capital benefit decree   (20.20%)    
Non-deductible expenses   2.40% 2.80% 3.30%
(Non-taxable) income     (0.40%) (0.30%)
Hedge of a net investment in foreign operations   (1.40%) (2.20%)  
Effect of changes in Venezuela tax law     3.60%  
Income tax credits   (1.80%) (3.90%)  
Philippines consolidation profit   (2.20%)    
Venezuela desconsolidation effect   23.40%    
Others   0.30% (1.60%) 0.80%
Total   26.50% 27.60% 31.50%