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Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Finitie-Lived Intangible Assets | The costs of intangible assets as of December 31, 2017 and 2016 are as follows:
| 2017 |  | 2016
Concession fees | $ | 6,800 |  |  | 6,800 |
Other intangibles | 7,613 |  |  | 17,189 |
Intangible assets | 14,413 |  |  | 23,989 |
Less: Accumulated amortization |  |  |
Concession fees | 5,508 |  |  | 5,236 |
Other intangibles | 2,585 |  |  | 2,412 |
Net intangible assets | $ | 6,320 |  |  | 16,341 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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