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COSTS AND EXPENSES BY NATURE (Tables) | 12 Months Ended
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Dec. 31, 2019
Disclosure of expenses by nature [text block] [Abstract] |
Disclosure of general and administrative expense [text block] |
|  | For the year ended |
|  | December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |
Aircraft fuel |  |  | 2,929,008 |  |  |  | 2,983,028 |  |  |  | 2,318,816 |
Other rentals and landing fees (*) |  |  | 1,275,859 |  |  |  | 1,206,881 |  |  |  | 1,233,640 |
Aircraft maintenance |  |  | 444,611 |  |  |  | 366,627 |  |  |  | 422,943 |
Comisions |  |  | 221,884 |  |  |  | 222,506 |  |  |  | 252,474 |
Passenger services |  |  | 261,330 |  |  |  | 280,279 |  |  |  | 288,662 |
Other operating expenses |  |  | 1,291,895 |  |  |  | 1,229,311 |  |  |  | 1,374,368 |
Total |  |  | 6,424,587 |  |  |  | 6,288,632 |  |  |  | 5,890,903 |
(*) Lease expenses are included within this amount (See Note 2.21)
Schedule of Payments for leases of low-value assets |
|  | For the period ended |
|  | December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |
|  |  |  |  | Restated |  |  | Restated |
Payments for leases of low-value assets |  |  | 31,982 |  |  |  | 27,929 |  |  |  | 35,240 |
Total |  |  | 31,982 |  |  |  | 27,929 |  |  |  | 35,240 |
Disclosure of depreciation and amortisation expense [text block] |
|  | For the year ended |
|  | December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |
Depreciation (*) |  |  | 1,389,465 |  |  |  | 1,307,032 |  |  |  | 1,318,725 |
Amortization |  |  | 80,511 |  |  |  | 65,596 |  |  |  | 58,410 |
Total |  |  | 1,469,976 |  |  |  | 1,372,628 |  |  |  | 1,377,135 |
(*) Included within this amount is the depreciation of the Properties, plants and equipment (See Note 17 (a)) and the maintenance of the aircraft recognized as assets by right of use. The maintenance cost amount included in the depreciation line for the period ended December 31, 2019 is ThUS$ 445,680 and ThUS$ 366,393 for the same period 2018.
Schedule of finance costs |
|  | For the year ended |
|  | December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
|  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |
Bank loan interest |  |  | 325,650 |  |  |  | 283,786 |  |  |  | 347,551 |
Financial leases |  |  | 61,980 |  |  |  | 62,202 |  |  |  | 37,522 |
Lease liabilities |  |  | 181,814 |  |  |  | 182,868 |  |  |  | 185,947 |
Other financial instruments |  |  | 20,490 |  |  |  | 10,281 |  |  |  | 8,213 |
Total |  |  | 589,934 |  |  |  | 539,137 |  |  |  | 579,233 |

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