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Bank Loans and issuance of Debt Securities - Summary of Issuance of Debt Securities (Parenthetical) (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Mar. 29, 2019
Nov. 09, 2017
Apr. 06, 2017
Jul. 08, 2016
Feb. 20, 2015
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 29, 2016
Disclosure of debt securities [line items]                  
Issuance of debt securities           $ 12,000,000 $ 9,000,000 $ 9,000,000  
Derivative financial instrument basis points 45.00%                
Unsecured Debt GAP-15 [Member] | TIIE Rate Plus 24 Basis Point [Member]                  
Disclosure of debt securities [line items]                  
Issuance of debt securities         $ 1,100,000 $ 2,200,000 2,200,000 2,200,000 $ 1,100,000
Borrowings interest rate basis           28-day TIIE plus 24 basis points      
Derivative financial instrument basis points         24.00%       24.00%
Maturity period         5 years        
Maturity date         Feb. 14, 2020        
Interest rate of debt           7.5555%      
Unsecured Debt GAP-15-2 [Member] | Fixed Rate Interest [Member]                  
Disclosure of debt securities [line items]                  
Issuance of debt securities         $ 1,500,000 $ 1,500,000 1,500,000 1,500,000  
Maturity period         10 years        
Maturity date         Feb. 07, 2025        
Interest rate of debt         7.08%        
Unsecured Debt GAP-16 [Member] | TIIE Rate Plus 49 Basis Point [Member]                  
Disclosure of debt securities [line items]                  
Issuance of debt securities       $ 1,500,000   $ 1,500,000 1,500,000 1,500,000  
Borrowings interest rate basis           28-day TIIE plus 49 basis points      
Derivative financial instrument basis points       49.00%          
Maturity period       5 years          
Interest rate of debt           7.5555%      
Unsecured Debt GAP-17 [Member] | TIIE Rate Plus 49 Basis Point [Member]                  
Disclosure of debt securities [line items]                  
Issuance of debt securities     $ 1,500,000     $ 1,500,000 1,500,000 1,500,000  
Borrowings interest rate basis     28-day TIIE plus 49 basis points            
Derivative financial instrument basis points     49.00%     7.5555%      
Maturity period     5 years            
Unsecured Debt GAP-17-2 [Member] | TIIE Rate Plus 44 Basis Point [Member]                  
Disclosure of debt securities [line items]                  
Issuance of debt securities   $ 2,300,000       $ 2,300,000 $ 2,300,000 $ 2,300,000  
Borrowings interest rate basis   28-day TIIE plus 44 basis points              
Derivative financial instrument basis points   44.00%       7.5555%      
Maturity period   5 years              
Unsecured Debt GAP-19 [Member] | TIIE Rate Plus 44 Basis Point [Member]                  
Disclosure of debt securities [line items]                  
Issuance of debt securities $ 3,000,000         $ 3,000,000      
Borrowings interest rate basis 28-day TIIE plus 44 basis points                
Derivative financial instrument basis points 44.00%         7.5555%      
Maturity period 5 years