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MINERAL PROPERTIES, PLANT AND EQUIPMENT, NET | 12 Months Ended
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Dec. 31, 2023
Property, Plant and Equipment [Abstract] |
MINERAL PROPERTIES, PLANT AND EQUIPMENT, NET | MINERAL PROPERTIES, PLANT AND EQUIPMENT, NET The components of Mineral properties, plant and equipment, net were as follows (in thousands):
|  | December 31,
|  | 2023 |  | 2022
Plant and equipment (1) |  | $ | 1,889,634 |  |  | $ | 1,793,914 |
Construction in process |  |  | 86,304 |  |  |  | 58,704 |
Mineral properties subject to depletion |  |  | 2,085,678 |  |  |  | 1,452,850 |
Mineral properties not yet subject to depletion |  |  | 878,712 |  |  |  | 848,281 |
Exploration and evaluation assets |  |  | 253,842 |  |  |  | 515,070 |
Total mineral properties, plant, and equipment |  |  | 5,194,170 |  |  |  | 4,668,819 |
Accumulated depreciation, plant and equipment |  |  | (714,579) |  |  |  | (621,323) |
Accumulated depreciation, mineral properties |  |  | (606,705) |  |  |  | (498,050) |
Mineral properties, plant, and equipment, net |  | $ | 3,872,886 |  |  | $ | 3,549,446 |
(1)As of December 31, 2023 and 2022, plant and equipment includes finance lease right-of-use assets with a carrying amount of $84.7 million and $101.7, respectively. During the year ended December 31, 2023, the Company concluded that mineral properties, plant and equipment was impaired and recorded a non-cash impairment. See Note 7 for further information relating to impairment of mineral properties, plant and equipment. No impairment was recognized for the year ended December 31, 2022.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-7 + Details
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