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Costs and expenses by nature: (Details)
$ in Thousands, $ in Millions
 1 Months Ended 12 Months Ended
Sep. 20, 2017
USD ($)
Dec. 31, 2018
MXN ($)
Dec. 31, 2017
MXN ($)
Dec. 31, 2016
MXN ($)
Expenses by nature [abstract]        
Termination benefits (Note 18.17)   $ 1,595 $ 1,984 $ 1,237
Short term benefits   1,118,926 772,129 531,246
Employees' statutory profit sharing   8,052 6,359 6,126
Electric power   458,827 234,879 108,910
Maintenance and conservation   673,603 401,479 229,904
Professional fees   306,169 217,930 103,918
Insurance and bonds   200,477 86,838 30,157
Surveillance services $ 15 310,065 207,303 144,462
Cleaning services   229,003 142,531 90,285
Technical assistance (Note 15.4)   386,249 346,487 288,111
Right of use of assets under concession (DUAC) [1]   898,253 468,695 344,939
Amortization and depreciation of intangible asset, furniture and equipment   1,760,741 1,166,114 529,660
Goodwill impairment (Note 8.1)     4,719,096  
Consumption of commercial items   300,845 252,602 180,636
Construction services (Note 3.1.3)   935,774 1,898,550 2,116,954
Financial assets impairment     45,687  
Other   177,330 144,322 114,347
Total aeronautical and non-aeronautical services costs, costs of construction services and administrative expenses   $ 7,765,909 $ 11,112,985 $ 4,820,892
[1] As of December 31, 2016, DUAC corresponds to the consideration for the concession in México, which is equivalent to 5% of the gross revenues of each of the concessions, as of December 31, 2017, Ps406,733 correspond to the consideration for the concessions in México, Ps56,005 correspond to the consideration of the Airplan concession at 19% of gross revenues from the period October 19 to December 31, 2017, and Ps5,957 for the consideration of the Aerostar concession at 5% of the airportʼs gross receipts from May 31, to December 31, 2017, as of December 31, 2018, Ps458,290 correspond to México, Ps312,244 correspond to Airplan and Ps127,719 correspond to Aerostar.