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INTANGIBLE ASSETS OTHER THAN GOODWILL (Details 1) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Reconciliation of changes in intangible assets other than goodwill [Roll Forward] |  |  |  |
Opening balance |  | $ 1,610,313 | $ 1,321,425 | $ 1,880,079
Additions |  | 87,333 | 90,360 | 53,224
Withdrawals |  | (928) | (927) | (4,775)
Transfer software |  | 203 | 10,653 | (1,700)
Foreing exchange |  | (21,264) | 239,059 | (568,667)
Amortization |  | (58,410) | (50,257) | (36,736)
Closing balance |  | 1,617,247 | 1,610,313 | 1,321,425
Computer Software [Member] |  |  |  |
Reconciliation of changes in intangible assets other than goodwill [Roll Forward] |  |  |  |
Opening balance |  | 157,016 | 104,258 | 126,797
Additions |  | 8,453 | 6,688 | 4,954
Withdrawals |  | (244) | (736) | (4,612)
Transfer software |  | 45,783 | 85,029 | 28,726
Foreing exchange |  | (1,215) | 5,689 | (14,871)
Amortization |  | (48,823) | (43,912) | (36,736)
Closing balance |  | 160,970 | 157,016 | 104,258
Developing Software [Member] |  |  |  |
Reconciliation of changes in intangible assets other than goodwill [Roll Forward] |  |  |  |
Opening balance |  | 91,053 | 74,887 | 74,050
Additions |  | 78,880 | 83,672 | 48,270
Withdrawals |  | (684) | (191) | (162)
Transfer software |  | (45,580) | (74,376) | (30,426)
Foreing exchange |  | (254) | 7,061 | (16,845)
Amortization |  |  |  |
Closing balance |  | 123,415 | 91,053 | 74,887
Airport Slots [Member] |  |  |  |
Reconciliation of changes in intangible assets other than goodwill [Roll Forward] |  |  |  |
Opening balance | [1] | 978,849 | 816,987 | 1,201,028
Additions | [1] |  |  |
Withdrawals | [1] |  |  |
Transfer software | [1] |  |  |
Foreing exchange | [1] | (14,336) | 161,862 | (384,041)
Amortization | [1] |  |  |
Closing balance | [1] | 964,513 | 978,849 | 816,987
Trademarks and Loyalty Program [Member] |  |  |  |
Reconciliation of changes in intangible assets other than goodwill [Roll Forward] |  |  |  |
Opening balance | [1],[2] | 383,395 | 325,293 | 478,204
Additions | [1],[2] |  |  |
Withdrawals | [1],[2] |  |  | (1)
Transfer software | [1],[2] |  |  |
Foreing exchange | [1],[2] | (5,459) | 64,447 | (152,910)
Amortization | [1],[2] | (9,587) | (6,345) |
Closing balance | [1],[2] | $ 368,349 | $ 383,395 | $ 325,293
[1] | See Note 2.5
[2] | In 2016, after the extensive work of integration after the association between LAN and TAM, during which there has been solid progress in the homologation of the optimization processes of its air connections, in addition to the restructuring and modernization of the fleet of aircraft, the Company has resolved adopt a unique name and identity, and announce that the brand of the group will be LATAM ", which would unite all companies under a single image.

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- Definition The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_i&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_vi&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The decrease in intangible assets other than goodwill resulting from disposals and retirements. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The increase (decrease) in intangible assets other than goodwill resulting from transfers and changes that the entity does not separately disclose in the same statement or note. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e&doctype=Standard -URIDate 2017-03-09 + Details
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