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Costs and expenses by nature: Additional information (Details)
$ in Thousands, $ in Thousands
 12 Months Ended
May 12, 2020
USD ($)
May 12, 2020
MXN ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Dec. 31, 2018
MXN ($)
Disclosure of geographical areas [line items]            
Right of use of assets under concession       $ 535,379 $ 986,850 $ 898,253
Short term benefits       1,039,883 1,199,217 1,118,926
Maintenance and preservation       447,884 699,557 673,603
Mexico            
Disclosure of geographical areas [line items]            
Right of use of assets under concession       254,337 484,402 458,290
Colombia (Airplan)            
Disclosure of geographical areas [line items]            
Right of use of assets under concession       $ 149,602 361,029 $ 312,244
Percentage of revenue     19.00% 19.00%   19.00%
Puerto Rico (Aerostar)            
Disclosure of geographical areas [line items]            
Right of use of assets under concession       $ 131,440 $ 141,419 $ 127,719
Percentage of revenue           5.00%
Amount of grant offer $ 33,417 $ 717,590 $ 33,417 717,590    
Amount of subsidy received for reimbursements of invoices $ 17,125 $ 367,752 $ 17,125 $ 367,752    
Number of years fund usage 4 years 4 years        
Pertinent expense, net   $ 339,681        
Short term benefits   165,894        
Amortization of insurance and bonding   142,274        
Amortization of others   23,650        
Maintenance and preservation   $ 7,863