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Costs and expenses by nature: (Details)
$ in Thousands, $ in Millions
 12 Months Ended
Sep. 20, 2017
USD ($)
Dec. 31, 2019
MXN ($)
Dec. 31, 2018
MXN ($)
Dec. 31, 2017
MXN ($)
Costs and expenses by nature:        
Short term benefits   $ 1,199,217 $ 1,118,926 $ 772,129
Electric power   474,719 458,827 234,879
Maintenance and conservation   699,557 673,603 401,479
Professional fees   308,740 306,169 217,930
Insurance and bonds   225,252 200,477 86,838
Surveillance services $ 29.7 325,612 310,065 207,303
Cleaning services   232,219 229,003 142,531
Technical assistance (Note 15.4)   404,086 386,249 346,487
Right of use of assets under concession   986,850 898,253 468,695
Amortization and depreciation of intangible assets, furniture and equipment   1,836,897 1,760,741 1,166,114
Impairment of goodwill (Note 8.1)   0 0 4,719,096
Consumption of commercial items   323,899 300,845 252,602
Construction services (Note 3.1.3)   1,236,193 935,774 1,898,550
Termination benefits (Note 18.17)   1,922 1,595 1,984
Employees' statutory profit sharing   10,250 8,052 6,359
Financial assets impairment     0 45,687
Other   279,649 177,330 144,322
Total aeronautical and non-aeronautical services costs, costs of construction services and administrative expenses   $ 8,545,062 $ 7,765,909 $ 11,112,985