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Land, furniture and equipment - Net: Additional information (Details) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Land, furniture and equipment:      
Depreciation expense $ 84,895 $ 66,284 $ 44,298
Mexico      
Land, furniture and equipment:      
Depreciation expense right-of-use assets 6,689 6,653  
Aerostar      
Land, furniture and equipment:      
Depreciation expense 72,474 54,524 40,410
Airplan      
Land, furniture and equipment:      
Depreciation expense $ 1,834 $ 1,506 $ 1,066