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Provisions and other non-financial liabilities (Details 3) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of Provisions and other non-financial liabilities [Line Items] |  |  |
Total provisions, initial balance | $ 138,019 | $ 93,446 | $ 50,846
Changes in provisions: |  |  |
Additional provisions | 158,841 | 184,064 | 60,923
Provision used | (3,736) | (139,506) | (4,921)
Increase(decrease) in foreign currency exchange | (24) | 0 | 9
others | 0 | 15 | 6
Total Increase (decreases) | 7,236 | 44,573 | 42,600
Total provisions, final balance | 145,255 | 138,019 | 93,446
Legal proceedings provision [member] |  |  |
Disclosure of Provisions and other non-financial liabilities [Line Items] |  |  |
Total provisions, initial balance | 14,862 | 19,419 | 23,867
Changes in provisions: |  |  |
Additional provisions | 4,111 | 1,000 | 6,352
Provision used | (4,049) | (5,557) | (10,800)
Increase(decrease) in foreign currency exchange | 0 | 0 | 0
others | 0 | 0 | 0
Total Increase (decreases) | 62 | (4,557) | (4,448)
Total provisions, final balance | 14,924 | 14,862 | 19,419
Provision for decommissioning, restoration and rehabilitation costs [member] |  |  |
Disclosure of Provisions and other non-financial liabilities [Line Items] |  |  |
Total provisions, initial balance | 28,822 | 26,954 | 5,890
Changes in provisions: |  |  |
Additional provisions | 4,416 | 1,820 | 21,064
Provision used | 0 | 0 | 0
Increase(decrease) in foreign currency exchange | 0 | 0 | 0
others | 0 | 48 | 0
Total Increase (decreases) | 4,416 | 1,868 | 21,064
Total provisions, final balance | 33,238 | 28,822 | 26,954
Miscellaneous other provisions [member] |  |  |
Disclosure of Provisions and other non-financial liabilities [Line Items] |  |  |
Total provisions, initial balance | 94,335 | 47,073 | 21,089
Changes in provisions: |  |  |
Additional provisions | 150,314 | 181,244 | 33,507
Provision used | (147,532) | (133,949) | (7,538)
Increase(decrease) in foreign currency exchange | (24) | 0 | 9
others | 0 | (33) | 6
Total Increase (decreases) | 2,758 | 47,262 | 25,984
Total provisions, final balance | $ 97,093 | $ 94,335 | $ 47,073

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- Definition The amount of additional other provisions made. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_b&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The increase (decrease) in other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_a&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_d&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 84 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_c&doctype=Standard -URIDate 2019-03-27 + Details
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