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Costs and expenses by nature: (Details Textual) - MXN ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Mexico [Member]      
Costs and expenses by nature line item [Line Items]      
Consideration for the concessions $ 406,733    
Airplan [Member]      
Costs and expenses by nature line item [Line Items]      
Consideration for the concessions   $ 56,005  
Aerostar [Member]      
Costs and expenses by nature line item [Line Items]      
Consideration for the concessions     $ 5,957