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Impairment of Non-Current Assetes - Impairment (Charges) Reversals (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Period of analyst consensus prices used for economic impairment modeling | 4 years |
Impairment loss recognised in profit or loss | $ 0 | $ 40,050
Reversals of impairment | $ 0 | (40,050)
Combined net carrying amount of Manantial Espejo mine and Joaquin and COSE development projects, net of associated closure and decommissioning liabilities |  | 63,600
Combined estimated recoverable amount |  | $ 23,500
Risk adjusted discount rate |  | 9.75%

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- Definition The amount of impairment loss recognised in profit or loss. [Refer: Impairment loss; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2020-01-01 -Paragraph 126 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2020-en-r&anchor=para_126_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2020-01-01 -Paragraph 129 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2020-en-r&anchor=para_129_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of reversal of impairment loss recognised in profit or loss. [Refer: Reversal of impairment loss; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2020-01-01 -Paragraph 126 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2020-en-r&anchor=para_126_b&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2020-01-01 -Paragraph 129 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2020-en-r&anchor=para_129_b&doctype=Standard -URIDate 2020-01-01 + Details
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