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Provisions (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | $ 313,327 | $ 301,412 |
Changes | (2,946) | 22,437 |
Accretion expense | 5,188 | 5,986 |
Reclassifications and others | (981) |  |
Disbursements | (18,032) | (16,508) |
Balance at end of the year | 298,518 | 313,327 |
Classification by maturity [Abstract] |  |  |
Current portion | 94,171 | 81,039 | $ 51,816
Non-current portion | 204,347 | 232,288 | $ 249,596
Closure of mining units and exploration projects [Member] |  |  |
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | 271,987 | 277,689 |
Changes | (8,872) | 1,779 |
Accretion expense | 5,129 | 5,623 |
Reclassifications and others | (992) |  |
Disbursements | (14,989) | (13,104) |
Balance at end of the year | 254,247 | 271,987 |
Classification by maturity [Abstract] |  |  |
Current portion | 60,644 | 54,013 |
Non-current portion | 193,603 | 217,974 |
Environmental liabilities [Member] |  |  |
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | 19,956 | 5,038 |
Changes | (228) | 16,557 |
Accretion expense | 59 | 363 |
Reclassifications and others | 992 |  |
Disbursements | (2,534) | (2,002) |
Balance at end of the year | 16,261 | 19,956 |
Environmental contingencies [Member] |  |  |
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | 5,164 | 2,874 |
Changes | 3,459 | 3,425 |
Accretion expense | 0 | 0 |
Reclassifications and others | (246) |  |
Disbursements | (453) | (1,135) |
Balance at end of the year | 8,416 | 5,164 |
Safety contingencies [Member] |  |  |
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | 5,632 | 4,536 |
Changes | 870 | 1,323 |
Accretion expense | 0 | 0 |
Reclassifications and others | (258) |  |
Disbursements | (44) | (227) |
Balance at end of the year | 6,716 | 5,632 |
Labor contingencies [Member] |  |  |
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | 4,421 | 4,080 |
Changes | 489 | 381 |
Accretion expense | 0 | 0 |
Reclassifications and others | (233) |  |
Disbursements | (12) | (40) |
Balance at end of the year | 5,131 | 4,421 |
Tax contingencies [Member] |  |  |
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | 3,409 | 3,110 |
Changes | 1,596 | 299 |
Accretion expense | 0 | 0 |
Reclassifications and others | 0 |  |
Disbursements | 0 | 0 |
Balance at end of the year | 5,005 | 3,409 |
Obligations with communities [Member] |  |  |
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | 2,595 | 3,605 |
Changes | (637) | (1,010) |
Accretion expense | 0 | 0 |
Reclassifications and others | (147) |  |
Disbursements | 0 | 0 |
Balance at end of the year | 2,105 | 2,595 |
Other provisions [Member] |  |  |
Disclosure of provisions [Line Items] |  |  |
Balance at beginning of the year | 163 | 480 |
Changes | 377 | (317) |
Accretion expense | 0 | 0 |
Reclassifications and others | (97) |  |
Disbursements | 0 | 0 |
Balance at end of the year | $ 637 | $ 163 |

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