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Authorization of the consolidated financial statements: (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of Consolidated statements of cash flows [Abstract] |
Description of detailed information regarding movements in bank loan and long term debt [Text Block] | As of December 31, 2016 and 2017, the analysis of net debt and movements in net debt is presented below:
|  | Bank |  | Long-term |
|  | loans |  | debt |
|  | 2016 |  | 2017 |  | 2017 |
Accounts payable |  | Ps |  |  | Ps |  |  | Ps | 340,288 |
Bank loans (Note 11) |  |  | 58,336 |  |  | 173,471 |  |  |  |
Bank loans (Note 11) |  |  | 4,402,440 |  |  | 10,321,382 |  |  |  |
Long-term debt (Note 12) |  |  |  |  |  |  |  |  | 7,149,177 |
Balances at December 31 |  | Ps | 4,460,776 |  | Ps | 10,494,853 |  | Ps | 7,489,465 |
Balances at January 1 of net debt |  | Ps | 3,678,128 |  | Ps | 4,460,776 |  |  |  |
Acquisition of Aerostar and Airplan |  |  |  |  |  | 3,424,897 |  |  | 7,182,963 |
Interest expense |  |  | 126,186 |  |  | 322,996 |  |  | 295,834 |
Proceeds from bank loans |  |  |  |  |  | 8,000,000 |  |  |  |
Interest paid |  |  | (106,873) |  |  | (351,152) |  |  | (277,068) |
Payment of the long-term debt and bank loan |  |  |  |  |  | (5,339,338) |  |  | (102,907) |
Foreign currency translation |  |  |  |  |  | 217,385 |  |  | 390,643 |
Exchange (income) / loss on foreign currency |  |  | 763,335 |  |  | (240,711) |  |  |  |
Balances at December 31 |  | Ps | 4,460,776 |  | Ps | 10,494,853 |  | Ps | 7,489,465 |

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