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Property, plant, equipment and development costs - Distribution Of Depreciation Expenses (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | $ 173,239 | $ 178,294 | $ 199,586
Cost of sales of goods |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | 147,032 | 159,652 | 174,103
Unabsorbed cost due to production stoppage |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | 14,877 | 4,569 | 10,764
Cost of sales of services |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | 8,153 | 8,109 | 8,461
Administrative expensess. |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | 1,886 | 4,741 | 3,142
Property, plant, equipment and development costs |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | 1,039 | 963 | 833
Exploration in non-operating areas |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | 101 | 114 | 111
Selling expenses |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | 93 | 84 | 0
Other, net |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | 49 | 48 | 46
Discontinued operations, note 1(e) |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |
Total depreciation expense | $ 9 | $ 14 | $ 2,126

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