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Intangible Assets, Net - Future amortization expense of trademarks (Details) $ in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2015 | Dec. 31, 2017 MXN ($) | Dec. 31, 2016 MXN ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 MXN ($) | Dec. 31, 2015 MXN ($)
Intangible Assets, Net |  |  |  |  |  |
Intangible assets, net |  |  | $ 37,734,771 |  | $ 35,886,434 | $ 38,106,325
Concessions |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Intangible assets, net |  |  | 15,719,572 |  | 15,166,067 | 15,719,572
Intangible Assets with Finite Useful Lives | Trademarks |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Intangible assets, net |  |  | 1,267,174 |  | 794,347 | $ 1,740,001
Estimated useful life (in years) | P4Y |  |  |  |  |
Amortization |  | $ 472,827 | $ 472,827 |  |  |
Intangible Assets with Finite Useful Lives | Trademarks | 2018 |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Amortization |  | 472,827 |  |  |  |
Intangible Assets with Finite Useful Lives | Trademarks | 2019 |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Amortization |  | $ 321,520 |  |  |  |
Intangible Assets with Finite Useful Lives | Concessions |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Intangible assets, net |  |  |  |  | $ 442,804 |
Estimated useful life (in years) |  | P5Y |  |  |  |
Amortization |  | $ 110,701 |  |  |  |
Intangible Assets with Finite Useful Lives | Concessions | 2018 |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Amortization |  | 110,701 |  |  |  |
Intangible Assets with Finite Useful Lives | Concessions | 2019 |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Amortization |  | 110,701 |  |  |  |
Intangible Assets with Finite Useful Lives | Concessions | 2020 |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Amortization |  | 110,701 |  |  |  |
Intangible Assets with Finite Useful Lives | Concessions | 2021 |  |  |  |  |  |
Intangible Assets, Net |  |  |  |  |  |
Intangible assets, net |  |  |  | $ 553,505 |  |
Amortization |  | $ 110,701 |  |  |  |

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