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Provisions and other non-financial liabilities (Details 3) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of Provisions and other non-financial liabilities [Line Items] |  |  |
Total provisions, initial balance | $ 166,783 | $ 145,255 | $ 138,019
Changes in provisions: |  |  |
Additional provisions | 287,568 | 154,581 | 154,425
Provision used | (65,358) | (127,624) | (151,581)
Increase(decrease) in foreign currency exchange | (72) | (2,482) | (24)
Others | (10,217) | (2,947) | 4,416
Total Increase (decreases) | 211,921 | 21,528 | 7,236
Total provisions, final balance | 378,704 | 166,783 | 145,255
Legal proceedings provision [member] |  |  |
Disclosure of Provisions and other non-financial liabilities [Line Items] |  |  |
Total provisions, initial balance | 10,165 | 14,924 | 14,862
Changes in provisions: |  |  |
Additional provisions | 48,012 | 62,922 | 4,111
Provision used | (8,399) | (67,685) | (4,049)
Increase(decrease) in foreign currency exchange | (37) | 4 | 0
Others | 0 | 0 | 0
Total Increase (decreases) | 39,576 | (4,759) | 62
Total provisions, final balance | 49,741 | 10,165 | 14,924
Provision for decommissioning, restoration and rehabilitation costs [member] |  |  |
Disclosure of Provisions and other non-financial liabilities [Line Items] |  |  |
Total provisions, initial balance | 61,265 | 33,238 | 28,822
Changes in provisions: |  |  |
Additional provisions | 7,302 | 30,974 | 0
Provision used | 0 | 0 | 0
Increase(decrease) in foreign currency exchange | 0 | 0 | 0
Others | (9,975) | (2,947) | 4,416
Total Increase (decreases) | (2,673) | 28,027 | 4,416
Total provisions, final balance | 58,592 | 61,265 | 33,238
Miscellaneous other provisions [member] |  |  |
Disclosure of Provisions and other non-financial liabilities [Line Items] |  |  |
Total provisions, initial balance | 95,353 | 97,093 | 94,335
Changes in provisions: |  |  |
Additional provisions | 232,254 | 60,685 | 150,314
Provision used | (56,959) | (59,939) | (147,532)
Increase(decrease) in foreign currency exchange | (35) | (2,486) | (24)
Others | (242) | 0 | 0
Total Increase (decreases) | 175,018 | (1,740) | 2,758
Total provisions, final balance | $ 270,371 | $ 95,353 | $ 97,093

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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 2021-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard -URIDate 2021-03-24 + Details
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