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Intangible assets, airport concessions and goodwill - Net: (Details)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2018
MXN ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
MXN ($)
Dec. 31, 2017
USD ($)
Intangible assets and goodwill $ 50,353,003 $ 636,527   $ 20,284,126
Additions Other Than Through Business Combination Intangible Assets Other Than Goodwill (649,928) [1] 935,774 [1] $ 3,665 (4,393,663) [2]
Acquisitions through business combinations, intangible assets and goodwill       6,053,820
Increase (decrease) through net exchange differences, intangible assets and goodwill (116,753) 336,860 840,330 140,951
Disposals and Transfer intangible assets and goodwill   (900,805)    
Intangible assets and goodwill 49,586,322 671,496 50,353,003 636,527
Gross carrying amount [member]        
Additions Other Than Through Business Combination Intangible Assets Other Than Goodwill 29,820   (5,404)  
Accumulated impairment [member]        
Intangible assets and goodwill   (8,703,731)   (7,560,520)
Additions Other Than Through Business Combination Intangible Assets Other Than Goodwill [2]       (1,143,211)
Intangible assets and goodwill       (8,703,731)
Concessions [Member] | Gross carrying amount [member]        
Intangible assets and goodwill 50,060,063   27,639,119  
Additions Other Than Through Business Combination Intangible Assets Other Than Goodwill 105,512   1,449,729  
Acquisitions through business combinations, intangible assets and goodwill     20,487,170  
Increase (decrease) through net exchange differences, intangible assets and goodwill (468,600)   484,045  
Disposals and Transfer intangible assets and goodwill 900,805      
Intangible assets and goodwill $ 49,961,253   $ 50,060,063  
Licences and franchises [member] | Gross carrying amount [member]        
Intangible assets and goodwill   224,442   205,527
Additions Other Than Through Business Combination Intangible Assets Other Than Goodwill   25,229 [1]   18,915 [2]
Intangible assets and goodwill   249,671   224,442
Goodwill [member]        
Intangible assets and goodwill   (8,703,731)    
Additions Other Than Through Business Combination Intangible Assets Other Than Goodwill   (1,716,443) [1]   (4,719,096) [2]
Increase (decrease) through net exchange differences, intangible assets and goodwill   25,080    
Intangible assets and goodwill   (10,395,094)   (8,703,731)
Goodwill [member] | Gross carrying amount [member]        
Intangible assets and goodwill   7,296,554    
Acquisitions through business combinations, intangible assets and goodwill       7,081,220
Increase (decrease) through net exchange differences, intangible assets and goodwill   (10,093)   2,115,334
Intangible assets and goodwill   $ 2,567,365   $ 7,296,554
[1] The most significant additions made in 2018 are a) improvements to the facilities at terminal buildings 3 and 4 at the Cancún Airport; b) construction of the federal inspection station and outfitting for operations at the LMM Airport and c) expansion to the national and international passenger terminal area, expansion of the international apron, advances in the construction of the cargo terminal at the Rionegro airport and extension of the passenger terminal and construction of the service center at Quibdó.
[2] The most significant additions includes: a) Improvements in the installation of the terminal 3 building at Cancún Airport; b) Construction of the new terminal 4 building at Cancún Airport; c) Supply and installation of passenger boarding bridges in the terminals 3 and 4 buildings; d) Expansion of the commercial platform of the terminal 3 building; e) Construction of earth fills and pavement for the terminal 4 platform, and f) Construction of wheel treads, connector, and head rests in Cancún Airport.