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Intangible assets, airport concessions and goodwill - Net: - Movements of intangible assets of airport concessions (Details) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Intangible assets:    
Intangible assets and goodwill $ 52,182,311 $ 49,126,038
Foreign currency translation 34,667 1,321,875
Additions 1,756,371 1,734,398
Intangible assets and goodwill 53,973,349 52,182,311
Accumulated amortization    
Intangible assets:    
Intangible assets and goodwill (14,061,413) (12,132,245)
Foreign currency translation 92,993 (79,297)
Additions (1,915,289) (1,849,871)
Intangible assets and goodwill (15,883,709) (14,061,413)
Concessions (Regulated Activity)    
Intangible assets:    
Intangible assets and goodwill 52,685,526 50,586,636
Foreign currency translation (284,573) 1,059,370
Additions 219,336 107,144
Disposals transfers 2,113,556 932,376
Intangible assets and goodwill 54,733,845 52,685,526
Contracts assets    
Intangible assets:    
Intangible assets and goodwill 3,704,065 978,060
Foreign currency translation 8,403 1,295
Additions 3,146,143 3,036,386
Disposals transfers (2,113,556) (311,676)
Intangible assets and goodwill 4,745,055 3,704,065
Contractor advance    
Intangible assets:    
Intangible assets and goodwill 431,805 696,696
Foreign currency translation (104)  
Additions 278,496 355,809
Disposals transfers   (620,700)
Intangible assets and goodwill 710,197 431,805
Licenses Mexico    
Intangible assets:    
Intangible assets and goodwill 364,727 279,797
Additions 27,685 84,930
Intangible assets and goodwill 392,412 364,727
Commercial Right's (Unregulated Activity)    
Intangible assets:    
Intangible assets and goodwill 6,490,236 6,149,729
Foreign currency translation 182,071 340,507
Intangible assets and goodwill 6,672,307 6,490,236
Goodwill | Gross carrying amount    
Intangible assets:    
Intangible assets and goodwill 2,567,365 2,567,365
Foreign currency translation 35,877  
Intangible assets and goodwill $ 2,603,242 $ 2,567,365