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OTHER REQUIRED DISCLOSURES (Statement of cash flows) (Details) - USD ($)
$ in Thousands
 12 Months Ended
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.