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Accounts receivable - Net: (Tables) | 12 Months Ended
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Dec. 31, 2017
Trade and other receivables [abstract] |
Disclosure of detailed information about trade and other receivables [text block] |
| December 31, |
|  | 2016 |  | 2017 |
Clients |  | Ps | 592,583 |  | Ps | 858,900 |
Less: impairment provision |  |  | (127,711) |  |  | (173,398) |
Current portion of accounts receivable |  |  | 464,872 |  |  | 685,502 |
Long term accounts receivable from joint ventures |  |  |  |  |  |  |
(Notes 9 and 15.1) (*) |  |  | 1,886,546 |  |  |  |
Total accounts receivable |  | Ps | 2,351,418 |  | Ps | 685,502 |
| (*) | In 2013, the Company granted a loan to Aerostar of Ps.1,254,800 (USD100,000) at an annual interest rate of LIBOR plus 2.10% valid for the long term. As of June 1, 2017, derived from the incorporation of Aerostar in the consolidation of the Company, this loan forms part of the elimination entries.
Disclosure of financial assets that are either past due or impaired [text block] |
| December 31, |
|  | 2016 |  | 2017 |
Three months |  | Ps | 51,820 |  | Ps | 137,155 |
From three to six months |  |  | 592 |  |  | 71,049 |
More than six months |  |  | 146,616 |  |  | 157,999 |
|  |  | 199,028 |  |  | 366,203 |
Minus: |  |  |  |  |  |  |
Past due accounts receivable not impaired |  |  | 71,317 |  |  | 192,805 |
Amount of the estimation for impairment |  | Ps | 127,711 |  | Ps | 173,398 |
The movements in the impairment provision are as follows:
Provision for impairment at January 1, 2015 |  | Ps | 130,185 |
Application to the provision during the period |  |  | (1,964) |
Provision for impairment at January 1, 2016 |  |  | 128,221 |
Application to the provision during the period |  |  | (510) |
Provision for impairment at December 31, 2016 |  |  | 127,711 |
Application to the provision during the period |  |  | 36,621 |
Aerostar’s provision impairment |  |  | 6,690 |
Airplan’s provision impairment |  |  | 2,376 |
Provision for impairment at December 31, 2017 |  | Ps | 173,398 |

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- Definition The disclosure of financial assets that are either past due or impaired. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 37 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_37&doctype=Standard&book=B -URIDate 2017-03-09 + Details
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