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Accounts payable and accrued expenses (Details) - MXN ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Accounts payable and accrued expenses:    
Suppliers $ 245,100 $ 313,574
Taxes payable 175,573 230,196
Use rights of assets under concession 269,916 247,729
Accounts payable to related parties (Note 15.1) 97,312 97,332
Lease payable (Note 7.1) 20,422  
Salaries payable 149,452 127,289
Sundry creditors for services provided 803,746 810,973
Accounts payable to contractors 37,809 44,331
Accounts payable and accrued expenses $ 1,799,330 $ 1,871,424