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Income Taxes - Additional Information (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Effective income tax rate for foreign jurisdiction 40.00% 31.00% 15.00%
Percentage of share with voting right 80.00%    
Brazil [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Net operating loss carryforwards $ 52,118,464    
Effective taxable income percentage carryforward 30.00%    
Effective taxable income percentage 25.00%    
Corporate tax rate 34.00%    
Austria [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Net operating loss carryforwards $ 14,470,465    
operating loss carryforward effective tax rate annual limit 75.00%    
Mexico [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Accumulated tax loss $ 13,980,757    
Bottom of range [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Statutory tax rates 21.00%    
Top of range [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Statutory tax rates 40.00%    
CUCA [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Contributed capital account $ 551,221,490 $ 536,278,717  
CUFIN [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Contributed capital account $ 320,880,512 $ 276,185,284