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Related parties - Analysis of balances due from/to related parties (Details)
$ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2017
MXN ($)
Dec. 31, 2016
MXN ($)
Dec. 31, 2018
MXN ($)
Disclosure of transactions between related parties        
Due from related parties $ 420     $ 8,266
Due to related parties   $ 40,931 $ 65,022 17,775
Frontier        
Disclosure of transactions between related parties        
Due from related parties       8,266
Due to related parties       2,751
Term 30 days 30 days 30 days  
One Link, S.A. de C.V.        
Disclosure of transactions between related parties        
Due to related parties   $ 24,980 $ 33,775  
Term 30 days 30 days 30 days  
Aeromantenimiento, S.A.        
Disclosure of transactions between related parties        
Due to related parties   $ 15,951 $ 30,627 15,024
Term 30 days 30 days 30 days  
SearchForce, Inc.        
Disclosure of transactions between related parties        
Due to related parties   $ 0 $ 620 $ 0
Term 30 days 30 days 30 days