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Guarantee deposits (Details)
$ in Thousands, $ in Thousands
Dec. 31, 2020
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Current assets:      
Credit letters deposits   $ 829,918  
Aircraft maintenance deposits paid to lessors   279,390 $ 576,505
Deposits for rental of flight equipment   23,584  
Other guarantee deposits   9,064 23,822
Total $ 57,245 1,141,956 600,327
Non-current assets:      
Aircraft maintenance deposits paid to lessors   7,641,544 7,047,360
Deposits for rental of flight equipment   741,871 557,530
Other guarantee deposits   41,323 39,531
Total $ 422,320 8,424,738 7,644,421
Total guarantee deposits   $ 9,566,694 $ 8,244,748