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PROPERTY, PLANT AND EQUIPMENT (Details 1) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | $ 10,498,149 |  | $ 10,938,657 |  | $ 10,773,076 |
Additions | 325,513 |  | 1,390,730 |  | 1,439,057 |
Disposals | (16,090) |  | (19,981) |  | (77,221) |
Retirements | (27,054) |  | (44,085) |  | (49,944) |
Depreciation expenses | (765,204) |  | (744,552) |  | (745,519) |
Foreing exchange | (11,506) |  | 172,987 |  | (435,300) |
Other increases (decreases) | 61,527 |  | (1,195,607) |  | 34,508 |
Changes, total | (432,814) |  | (440,508) |  | 165,581 |
Closing balance | 10,065,335 |  | 10,498,149 |  | 10,938,657 |
Construction in Progress [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 470,065 | [1] | 1,142,812 |  | 937,279 |
Additions | 11,145 |  | 14,481 |  | 39,711 |
Disposals |  |  |  |  |  |
Retirements | (127) |  | (284) |  | (1,262) |
Depreciation expenses |  |  |  |  |  |
Foreing exchange | 107 |  | 5,081 |  | (932) |
Other increases (decreases) | 75,632 |  | (692,025) |  | 168,016 |
Changes, total | 86,757 |  | (672,747) |  | 205,533 |
Closing balance | 556,822 | [2] | 470,065 | [1] | 1,142,812 |
Land [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 50,148 |  | 45,313 |  | 57,988 |
Additions |  |  |  |  |  |
Disposals |  |  |  |  |  |
Retirements |  |  |  |  |  |
Depreciation expenses |  |  |  |  |  |
Foreing exchange | (368) |  | 4,835 |  | (11,786) |
Other increases (decreases) |  |  |  |  | (889) |
Changes, total | (368) |  | 4,835 |  | (12,675) |
Closing balance | 49,780 |  | 50,148 |  | 45,313 |
Buildings [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 130,219 |  | 91,491 |  | 167,006 |
Additions |  |  | 272 |  | 439 |
Disposals |  |  |  |  | (500) |
Retirements | (6) |  | (68) |  | (956) |
Depreciation expenses | (7,946) |  | (6,234) |  | (7,161) |
Foreing exchange | (275) |  | 2,538 |  | (18,248) |
Other increases (decreases) | 2,556 |  | 42,220 |  | (49,089) |
Changes, total | (5,671) |  | 38,728 |  | (75,515) |
Closing balance | 124,548 |  | 130,219 |  | 91,491 |
Information Technology Equipment [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 39,714 |  | 43,889 |  | 51,009 |
Additions | 5,708 |  | 7,392 |  | 15,322 |
Disposals | (6) |  | (59) |  | (27) |
Retirements | (473) |  | (55) |  | (104) |
Depreciation expenses | (14,587) |  | (14,909) |  | (16,196) |
Foreing exchange | (183) |  | 2,924 |  | (6,126) |
Other increases (decreases) | (17) |  | 532 |  | 11 |
Changes, total | (9,558) |  | (4,175) |  | (7,120) |
Closing balance | 30,156 |  | 39,714 |  | 43,889 |
Fixed Installations and Accessories [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 83,912 |  | 88,958 |  | 43,783 |
Additions | 329 |  | 292 |  | 1,692 |
Disposals | (10) |  |  |  |  |
Retirements | (497) |  | (1,258) |  | (476) |
Depreciation expenses | (14,124) |  | (13,664) |  | (11,649) |
Foreing exchange | (820) |  | 9,384 |  | (13,269) |
Other increases (decreases) | 11,987 |  | 200 |  | 68,877 |
Changes, total | (3,135) |  | (5,046) |  | 45,175 |
Closing balance | 80,777 |  | 83,912 |  | 88,958 |
Motor Vehicles [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 1,045 |  | 1,525 |  | 1,965 |
Additions | 77 |  | 6 |  | 280 |
Disposals | (43) |  | (32) |  | (8) |
Retirements |  |  |  |  | (4) |
Depreciation expenses | (187) |  | (293) |  | (378) |
Foreing exchange | (8) |  | 223 |  | (638) |
Other increases (decreases) | (448) |  | (384) |  | 308 |
Changes, total | (609) |  | (480) |  | (440) |
Closing balance | 436 |  | 1,045 |  | 1,525 |
Leasehold Improvements [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 104,541 |  | 54,088 |  | 56,523 |
Additions | 8,156 |  | 54,181 |  | 13,188 |
Disposals |  |  |  |  |  |
Retirements |  |  |  |  |  |
Depreciation expenses | (27,266) |  | (23,283) |  | (13,973) |
Foreing exchange | (243) |  | 2,849 |  | (1,659) |
Other increases (decreases) | (963) |  | 16,706 |  | 9 |
Changes, total | (20,316) |  | 50,453 |  | (2,435) |
Closing balance | 84,225 |  | 104,541 |  | 54,088 |
Other Property, Plants and Equipment [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 1,828,630 |  | 2,129,506 |  | 2,503,434 |
Additions | 41,483 |  | 13,013 |  | 64,226 |
Disposals | (27) |  | (2,972) |  | (11) |
Retirements | (1,610) |  | (2,604) |  | (8,902) |
Depreciation expenses | (204,237) |  | (124,038) |  | (174,474) |
Foreing exchange | (5,113) |  | 93,383 |  | (252,709) |
Other increases (decreases) | 626,237 |  | (277,658) |  | (2,058) |
Changes, total | 456,733 |  | (300,876) |  | (373,928) |
Closing balance | 2,285,363 |  | 1,828,630 |  | 2,129,506 |
Plant and Equipment Net [Member] |  |  |  |  |  |
Reconciliation of changes in property, plant and equipment [Roll Forward] |  |  |  |  |  |
Opening balance | 7,789,875 |  | 7,341,075 |  | 6,954,089 |
Additions | 258,615 |  | 1,301,093 |  | 1,304,199 |
Disposals | (16,004) |  | (16,918) | [3] | (76,675) | [4]
Retirements | (24,341) |  | (39,816) |  | (38,240) |
Depreciation expenses | (496,857) |  | (562,131) |  | (521,688) |
Foreing exchange | (4,603) |  | 51,770 |  | (129,933) |
Other increases (decreases) | (653,457) |  | (285,198) | [5] | (150,677) |
Changes, total | (936,647) |  | 448,800 |  | 386,986 |
Closing balance | $ 6,853,228 |  | $ 7,789,875 |  | $ 7,341,075 |
[1] | It includes pre-delivery payments to aircraft manufacturers for ThUS$ 434,250 (ThUS$ 1,016,007 as of December 31, 2015).
[2] | As of December 31, 2017, includes pre-delivery payments to aircraft manufacturers for ThUS$ 543,720 (ThUS$ 434,250 as of December 31, 2016).
[3] | During 2016 the sale of two Airbus A330 aircraft was materialized.
[4] | During the first half of 2015 three Airbus A340 aircraft were sold. During the second half of 2015 seven Dash-200 aircraft were sold. During the second half of 2015 two Airbus A319 aircraft were sold.
[5] | During 2016 the reclassification to non-current assets or groups of assets for disposal classified as held for sale (see Note 13) of two Airbus A319 aircraft, two Airbus A320 aircraft, six Airbus A330 aircraft and two Boeing 777 aircraft was materialized.

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