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Segment information: (Details Textual) | Dec. 31, 2017 | Oct. 19, 2017 | Apr. 30, 2017
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Aerostar Airport Holdings, LLC [Member] | Aeropuerto de Cancún, S. A. de C. V. [Member] |  |  |
Percentage of voting equity interests acquired | 60.00% |  | 50.00%
Airplan [Member] |  |  |
Percentage of voting equity interests acquired |  | 92.42% |

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- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2017-01-01 -Paragraph B64 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_c&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
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- Details
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- Details
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- Details
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