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Intangible assets, airport concessions - Net: (Details 3) | 12 Months Ended
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Dec. 31, 2017
Aerostar segment [Member] |
Discount rate | 10.00%
Discount rate for the value in use method | 11.75%
Annual average of revenue growth | 3.47%
Level of the fair value hierarchy of value recoverable from the CGU | 3
Airplan segment [Member] |
Discount rate | 10.07%
Discount rate for the value in use method | 15.12%
Annual average of revenue growth | 2.00%
Level of the fair value hierarchy of value recoverable from the CGU | 3

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