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Income Taxes - Additional Information (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Statutory income tax rate in Mexico 30.00% 30.00% 30.00%
Effective income tax rate for foreign jurisdiction 15.00% 20.00% 22.00%
Brazil [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Net operating loss carryforwards $ 78,617,318    
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 $ 25,733,966    
operating loss carryforward effective tax rate annual limit 75.00%    
Colombia [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Net operating loss carryforwards $ 11,221,937    
Bottom of range [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Statutory tax rates 22.00%    
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 $ 510,832,194 $ 478,087,224  
CUFIN [member]      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Contributed capital account $ 225,105,342 $ 191,795,991