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Accounts receivable - Net: Movement in provision (Details) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Impairment provision:    
Provision beginning balance $ 346,183 $ 191,766
Provision impairment (128,000)  
Provision ending balance 317,664 346,183
Mexico    
Impairment provision:    
Provision beginning balance 199,400  
Application to provision 9,331 70,470
Provision ending balance 208,731 199,400
Colombia (Airplan)    
Impairment provision:    
Provision beginning balance 58,452  
Application to provision   33,105
Provision impairment (1,575)  
Provision ending balance 56,877 58,452
Puerto Rico (Aerostar)    
Impairment provision:    
Provision beginning balance 88,331  
Application to provision   50,842
Provision impairment (36,275)  
Provision ending balance $ 52,056 $ 88,331