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v3.24.1

MINERAL PROPERTIES AND PROPERTY, PLANT AND EQUIPMENT (Schedule Related to Property, Plant and Equipment) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | $ 1,567,622 |
Impairment | 90,615 | $ 182,842
Net Book Value | 1,574,212 | 1,567,622
Ending Balance | 1,574,212 | 1,567,622
Gross carrying amount [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | 2,438,696 | 2,211,020
Acquisition of Chesser | 59,144 |
Additions | 275,821 | 241,884
Changes in closure and reclamation provision | 9,559 | (5,021)
Disposals and write-offs | (12,897) | (9,187)
Ending Balance | 2,770,323 | 2,438,696
Accumulated depreciation, amortisation and impairment [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | (871,075) | (498,666)
Disposals and write-offs | (6,650) | (1,970)
Impairment | 90,615 | 182,842
Depletion and depreciation | 241,071 | 191,537
Ending Balance | (1,196,111) | (871,075)
Mineral Properties [member] | Depletable [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Net Book Value | 788,366 | 360,731
Mineral Properties [member] | Depletable [member] | Gross carrying amount [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | 866,999 | 758,112
Additions | 100,366 | 74,301
Changes in closure and reclamation provision | 9,407 | (10,024)
Disposals and write-offs | (142) | (372)
Transfers | 534,991 | 44,982
Ending Balance | 1,511,621 | 866,999
Mineral Properties [member] | Depletable [member] | Accumulated depreciation, amortisation and impairment [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | (506,268) | (275,460)
Disposals and write-offs | (40) |
Impairment | 60,602 | 117,237
Depletion and depreciation | 156,425 | 113,571
Ending Balance | (723,255) | (506,268)
Mineral Properties [member] | Non Depletable [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Net Book Value | 272,956 | 712,269
Mineral Properties [member] | Non Depletable [member] | Gross carrying amount [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | 712,269 | 719,663
Acquisition of Chesser | 58,862 |
Additions | 39,835 | 35,468
Changes in closure and reclamation provision |  | 5,238
Disposals and write-offs | (5,883) | (5,502)
Transfers | (532,127) | (42,598)
Ending Balance | 272,956 | 712,269
Construction in progress [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Net Book Value | 44,169 | 154,647
Construction in progress [member] | Gross carrying amount [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | 154,647 | 57,759
Additions | 111,690 | 117,860
Transfers | (222,119) | (20,972)
Ending Balance | 44,218 | 154,647
Construction in progress [member] | Accumulated depreciation, amortisation and impairment [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Impairment | 49 |
Ending Balance | (49) |
Property, plant & Equipment [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Net Book Value | 468,721 | 339,975
Property, plant & Equipment [member] | Gross carrying amount [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | 704,781 | 675,486
Acquisition of Chesser | 282 |
Additions | 23,930 | 14,255
Changes in closure and reclamation provision | 152 | (235)
Disposals and write-offs | (6,872) | (3,313)
Transfers | 219,255 | 18,588
Ending Balance | 941,528 | 704,781
Property, plant & Equipment [member] | Accumulated depreciation, amortisation and impairment [member] |  |
Mineral Properties, and Property, Plant and Equipment |  |
Beginning Balance | (364,807) | (223,206)
Disposals and write-offs | (6,610) | (1,970)
Impairment | 29,964 | 65,605
Depletion and depreciation | 84,646 | 77,966
Ending Balance | $ (472,807) | $ (364,807)

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