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Critical accounting judgments and key sources of estimation uncertainty: (Details) - MXN ($)
$ in Thousands
 12 Months Ended
May 15, 2008
Dec. 31, 2021
Dec. 31, 2020
Ifrs Statement [Line Items]      
Expected Revenue From Airplan   $ 17,540,245 $ 14,381,166
Original concession period for operating rights 25 years 50 years  
Airplan      
Ifrs Statement [Line Items]      
Original concession period for operating rights 15 years 40 years  
Minimum | Airplan      
Ifrs Statement [Line Items]      
Original concession period for operating rights   24 years