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OTHER REQUIRED DISCLOSURES (Statement of cash flows) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of additional information [Abstract] |  |  |  |
Inventories |  | $ 156,517 | $ 510,972 | $ (186,409)
Receivables and others |  | (29,539) | 6,175 | 8,652
Trade receivables |  | (12,110) | 161,454 | (123,388)
Other liabilities |  | 37,517 | (95,131) | 17,138
Trade payables |  | 200,410 | (10,786) | 55,430
Increase (decrease) in working capital | [1] | 352,795 | 572,684 | (228,577)
Tax accrued (Note 10) |  | 291,488 | 196,519 | 369,435
Taxes paid |  | (224,927) | (405,324) | (523,801)
Income tax accruals less payments, total |  | 66,561 | (208,805) | (154,366)
Interest accrued (Note 9 and 22) |  | 62,760 | 104,855 | 131,172
Interest paid |  | (55,769) | (101,450) | (144,186)
Interest accruals less payments, total |  | $ 6,991 | $ 3,405 | $ (13,014)
[1] | The working capital is impacted by non-cash movement of $ (18.0) million as of December 31, 2020 ($(70.0) million and $(74.5) million as of December 31, 2019 and 2018, respectively) due to the variations in the exchange rates used by subsidiaries with functional currencies different from the U.S. dollar.

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