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DEFERRED INCOME TAX (Schedule of deferred tax assets and liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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Deferred income tax [Abstract] |  |  |
Deferred tax assets to be recovered after more than 12 months | $ 200,639 | $ 203,607 |
Deferred tax assets to be recovered within 12 months | 90,637 | 75,787 |
Deferred tax liabilities to be settled after more than 12 months | (446,891) | (454,763) |
Deferred tax liabilities to be settled within 12 months | (32,167) | (64,371) |
Deferred tax liability (asset) | $ (187,782) | $ (239,740) | $ (340,207)

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- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Deferred tax liabilities, noncurrent + References No definition available. + Details
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