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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2023
Accounting Policies [Abstract] |
Schedule of Mineral Properties, Plant and Equipment | The major categories of plant and equipment are depreciated on a straight-line basis using the estimated lives indicated below:
Vehicles | 5 years - 7 years
Mining equipment | 3 years - LOM
Mobile equipment components | 2 years - 7 years
Buildings | LOM
Mine plant equipment | LOM
Underground infrastructure | LOM
ROU assets - plant and equipment (1) | 10 years - LOM
(1)For ROU assets, the depreciation period indicated above represents the period from lease commencement date to the earlier of the end of the useful life of the underlying asset or the end of the lease term. 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.

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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