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Mining Interest, Plant & Equipment - Schedule of Mining Interest, Plant & Equipment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | $ 943,453 | $ 749,146
Capitalized interest and accretion | 22,577 | 14,550
Ending balance | 1,627,810 | 943,453
Cost |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 1,418,966 | 1,132,251
Additions | 195,431 | 115,026
Acquisition of PSN (Note 5) | 582,900 |
Disposals | (4,307) | (1,937)
Transfers | 0 | 0
Change in decommissioning liability (Note 11) | 246 | 3,182
Capitalized interest and accretion | 22,577 | 14,550
Exchange difference | (120,931) | 155,894
Ending balance | 2,094,882 | 1,418,966
Accumulated Depreciation and Impairment Charges |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | (475,513) | (383,105)
Depreciation | (34,804) | (36,512)
Disposals | 1,684 | 668
Exchange difference | 41,561 | (56,564)
Ending balance | (467,072) | (475,513)
Plant and equipment |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 97,560 | 108,649
Ending balance | 98,785 | 97,560
Plant and equipment | Cost |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 189,414 | 135,579
Additions | 13,534 | 19,005
Acquisition of PSN (Note 5) | 4,790 |
Disposals | (3,973) | (1,338)
Transfers | 9,142 | 8,457
Change in decommissioning liability (Note 11) | 0 | 0
Capitalized interest and accretion | 0 | 0
Exchange difference | (21,156) | 27,711
Ending balance | 191,751 | 189,414
Plant and equipment | Accumulated Depreciation and Impairment Charges |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | (91,854) | (60,844)
Depreciation | (16,513) | (13,478)
Disposals | 1,684 | 668
Exchange difference | 13,717 | (18,200)
Ending balance | (92,966) | (91,854)
Construction in progress |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 64,342 | 13,073
Ending balance | 67,294 | 64,342
Construction in progress | Cost |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 64,342 | 46,987
Additions | 40,087 | 14,450
Acquisition of PSN (Note 5) | 0 |
Disposals | (334) | (599)
Transfers | (26,577) | (8,457)
Change in decommissioning liability (Note 11) | 0 | 0
Capitalized interest and accretion | 0 | 0
Exchange difference | (10,224) | 11,961
Ending balance | 67,294 | 64,342
Construction in progress | Accumulated Depreciation and Impairment Charges |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 0 | 0
Depreciation | 0 | 0
Disposals | 0 | 0
Exchange difference | 0 | 0
Ending balance | 0 | 0
Depletable mineral properties |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 223,104 | 149,601
Ending balance | 231,266 | 223,104
Depletable mineral properties | Cost |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 427,287 | 292,386
Additions | 49,434 | 36,190
Acquisition of PSN (Note 5) | 0 |
Disposals | 0 | 0
Transfers | 17,435 | 0
Change in decommissioning liability (Note 11) | 763 | 3,182
Capitalized interest and accretion | 0 | 0
Exchange difference | (69,023) | 95,529
Ending balance | 425,896 | 427,287
Depletable mineral properties | Accumulated Depreciation and Impairment Charges |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | (204,183) | (142,785)
Depreciation | (18,291) | (23,034)
Disposals | 0 | 0
Exchange difference | 27,844 | (38,364)
Ending balance | (194,630) | (204,183)
Non-Depletable development projects |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 216,723 | 153,540
Ending balance | 287,446 | 216,723
Non-Depletable development projects | Cost |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 216,723 | 153,540
Additions | 66,696 | 30,412
Acquisition of PSN (Note 5) | 0 |
Disposals | 0 | 0
Transfers | 0 | 0
Change in decommissioning liability (Note 11) | 0 | 0
Capitalized interest and accretion | 22,577 | 14,550
Exchange difference | (18,550) | 18,221
Ending balance | 287,446 | 216,723
Non-Depletable development projects | Accumulated Depreciation and Impairment Charges |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 0 | 0
Depreciation | 0 | 0
Disposals | 0 | 0
Exchange difference | 0 | 0
Ending balance | 0 | 0
Exploration projects |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 341,724 | 324,283
Ending balance | 943,019 | 341,724
Exploration projects | Cost |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | 521,200 | 503,759
Additions | 25,680 | 14,969
Acquisition of PSN (Note 5) | 578,110 |
Disposals | 0 | 0
Transfers | 0 | 0
Change in decommissioning liability (Note 11) | (517) | 0
Capitalized interest and accretion | 0 | 0
Exchange difference | (1,978) | 2,472
Ending balance | 1,122,495 | 521,200
Exploration projects | Accumulated Depreciation and Impairment Charges |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Beginning balance | (179,476) | (179,476)
Depreciation | 0 | 0
Disposals | 0 | 0
Exchange difference | 0 | 0
Ending balance | $ (179,476) | $ (179,476)

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