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INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary - Non-controlling interests [member] - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Total | $ (1,605) | $ 79,908 | $ 45,410
Lan Peru S.A. [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Peru |
Percentage of income attributable to subsidiaries | 30.00% | 30.00% | 30.00%
Total | $ 2,609 | $ 3,032 | $ 360
Lan Cargo S.A. And Subsidiaries [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 93.383.000-4 |
Country of origin |  | Chile |
Percentage of income attributable to subsidiaries | 0.10196% | 0.10196% | 0.10196%
Total | $ 369 | $ (101) | $ (4)
Promotora Aerea Latinoamericana S.A. and Subsidiaries [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Argentina |
Percentage of income attributable to subsidiaries | 0.0163% | 0.1394% | 51.00%
Total | $ (6,276) | $ 8,684 | $ 1,416
Lan Argentina S.A. [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Argentina |
Percentage of income attributable to subsidiaries | 0.0289% | 0.0289% | 0.02842%
Total | $ 50 | $ (472) | $ 24
Americonsult de Guatemala S.A. [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Guatemala |
Percentage of income attributable to subsidiaries | 0.87% | 1.00% |
Total | $ 1 | $ 1 |
Americonsult S.A. and Subsidiaries [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Mexico |
Percentage of income attributable to subsidiaries | 0.20% | 0.20% | 0.20%
Total | $ (7) | $ 1 |
Americonsult Costa Rica S.A. [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Costa Rica |
Percentage of income attributable to subsidiaries | 0.20% | 1.00% |
Total | $ 2 | $ 11 |
Linea Aerea Carguera de Colombiana S.A. [Mmeber] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Colombia |
Percentage of income attributable to subsidiaries | 10.00% | 10.00% | 10.00%
Total | $ (755) | $ (462) | $ 398
Aerolineas Regionales de Integracion Aires S.A. [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Colombia |
Percentage of income attributable to subsidiaries | 0.7988% | 0.7988% | 0.80944%
Total | $ 899 | $ 378 | $ 4
Transportes Aereos del Mercosur S.A. [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Paraguay |
Percentage of income attributable to subsidiaries | 5.02% | 5.02% | 5.02%
Total | $ 1,503 | $ 1,740 | $ 299
Multiplus S.A. [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Brazil |
Percentage of income attributable to subsidiaries |  | 27.26% | 27.26%
Total | $ 5,726 | $ 67,096 | $ 42,796
Inversora Cordillera S.A. and Subsidiaries [Member] |  |  |
INVESTMENTS IN SUBSIDIARIES (Details) - Schedule of non-controlling interest of subsidiary [Line Items] |  |  |
Tax No . |  | 0-E |
Country of origin |  | Argentina |
Percentage of income attributable to subsidiaries | 0.0163% | 0.1394% | 0.1394%
Total | $ 359 | $ 66 | $ 117

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