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Intangible assets, airport concessions - Net: (Details) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Intangible assets and goodwill $ 20,284,126 $ 19,022,311
Additions other than through business combinations, intangible assets other than goodwill   1,261,815
Acquisitions through business combinations, intangible assets and goodwill  
Increase (decrease) through net exchange differences, intangible assets and goodwill 840,330  
Impairment loss recognised in profit or loss, intangible assets and goodwill (4,393,663)  
Intangible assets and goodwill 50,353,003 20,284,126
Accumulated impairment [member]    
Intangible assets and goodwill (7,560,520) (7,023,669)
Additions other than through business combinations, intangible assets other than goodwill   (536,851)
Impairment loss recognised in profit or loss, intangible assets and goodwill (1,143,211)  
Intangible assets and goodwill (8,703,731) (7,560,520)
Concessions [member] | Gross carrying amount [member]    
Intangible assets and goodwill 27,639,119 25,854,357
Additions other than through business combinations, intangible assets other than goodwill   1,784,762
Acquisitions through business combinations, intangible assets and goodwill 20,487,170  
Increase (decrease) through net exchange differences, intangible assets and goodwill 484,045  
Impairment loss recognised in profit or loss, intangible assets and goodwill 1,449,729  
Intangible assets and goodwill 50,060,063 27,639,119
Licences and franchises [member]    
Impairment loss recognised in profit or loss, intangible assets and goodwill 18,915  
Licences and franchises [member] | Gross carrying amount [member]    
Intangible assets and goodwill 205,527 191,623
Additions other than through business combinations, intangible assets other than goodwill   13,904
Intangible assets and goodwill 224,442 $ 205,527
Goodwill [Member]    
Impairment loss recognised in profit or loss, intangible assets and goodwill (4,719,096)  
Goodwill [Member] | Gross carrying amount [member]    
Acquisitions through business combinations, intangible assets and goodwill 7,081,220  
Increase (decrease) through net exchange differences, intangible assets and goodwill 215,334  
Intangible assets and goodwill $ 7,296,554