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Income tax incurred and deferred: IT Provision (Details) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure by geographical areas:      
Deferred IT   $ 932 $ 932
IT provision $ 729,155 1,978,102 1,795,961
Mexico      
Disclosure by geographical areas:      
Current IT 631,471 1,864,384 1,766,083
Deferred IT 117,924 57,023 13,116
IT provision 749,395 1,921,407 1,779,199
Puerto Rico (Aerostar)      
Disclosure by geographical areas:      
Current IT (16) 433  
Deferred IT 42,546 38,146 33,879
IT provision 42,530 38,579 33,879
Colombia (Airplan)      
Disclosure by geographical areas:      
Current IT 2,916 110,910 (20,098)
Deferred IT (65,686) (92,794) 2,981
IT provision $ (62,770) $ 18,116 $ (17,117)