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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, 2024
Dec. 31, 2023
Intangible assets:    
Intangible assets and goodwill $ 49,310,063  
Intangible assets and goodwill 55,886,163 $ 49,310,063
Gross carrying amount    
Intangible assets:    
Intangible assets and goodwill 49,310,063 52,658,081
Foreign currency translation 4,453,589 (2,606,466)
Additions 2,122,511 741,552
Intangible assets and goodwill 55,886,163 49,310,063
Accumulated amortization    
Intangible assets:    
Intangible assets and goodwill (18,970,087) (17,392,821)
Foreign currency translation (1,194,291) 431,204
Additions (2,250,734) (2,008,470)
Intangible assets and goodwill (22,415,112) (18,970,087)
Concessions (Regulated Activity)    
Intangible assets:    
Intangible assets and goodwill 58,504,094 56,442,841
Foreign currency translation 3,784,683 (1,830,087)
Additions 245,120 74,853
Transfers 1,849,882 3,816,487
Intangible assets and goodwill 64,383,779 58,504,094
Contracts assets    
Intangible assets:    
Intangible assets and goodwill 1,424,292 3,993,438
Foreign currency translation 127,992 (55,292)
Additions 2,848,300 1,302,633
Transfers (1,849,882) (3,816,487)
Intangible assets and goodwill 2,550,702 1,424,292
Contractor advance    
Intangible assets:    
Intangible assets and goodwill 214,245 378,097
Foreign currency translation 20 41
Additions 1,191,928  
Additions   (163,893)
Intangible assets and goodwill 1,406,193 214,245
Licences and ODC    
Intangible assets:    
Intangible assets and goodwill 472,764 419,439
Additions 87,897 53,325
Intangible assets and goodwill 560,661 472,764
Commercial Right's (Unregulated Activity)    
Intangible assets:    
Intangible assets and goodwill 5,515,570 6,347,709
Foreign currency translation 1,260,707 (832,139)
Intangible assets and goodwill 6,776,277 5,515,570
Goodwill    
Intangible assets:    
Intangible assets and goodwill 2,149,185 2,469,378
Foreign currency translation 474,478 (320,193)
Intangible assets and goodwill 2,623,663 $ 2,149,185
Terminal building 1 at Cancun Airport    
Intangible assets:    
Additions 913,765  
Terminal building 4 at Cancun Airport    
Intangible assets:    
Additions 350,430  
Villahermosa Airport    
Intangible assets:    
Additions 70,547  
Terminal D at Aerostar    
Intangible assets:    
Additions 218,057  
Rest of the group's airports    
Intangible assets:    
Additions 297,083  
Terminal 1 at Cancun airport    
Intangible assets:    
Additions 510,418  
Terminal D at Puerto Rico.    
Intangible assets:    
Additions $ 280,213