v3.25.4

Mineral Interests and Property, Plant and Equipment, net (Tables) | 12 Months Ended
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Dec. 31, 2025
Property, Plant and Equipment [Abstract] |
Schedule of Property, Plant and Equipment | Property, plant and equipment are summarized as follows (in thousands):
|  | December 31, 2025 |  |  | December 31, 2024 |
Land |  | $ | 77,406 |  |  | $ | 77,351 |
Land improvements |  |  | 82,422 |  |  |  | 19,939 |
Building and leasehold improvements |  |  | 144,744 |  |  |  | 73,543 |
Asset retirement obligation assets |  |  | 48,734 |  |  |  | 62,301 |
Mine development and infrastructure costs |  |  | 208,538 |  |  |  | 126,266 |
Machinery and equipment |  |  | 1,870,215 |  |  |  | 1,435,650 |
Financing lease right of use asset |  |  | 206,303 |  |  |  | 106,959 |
Construction in progress |  |  | 203,696 |  |  |  | 513,072 |
Total |  |  | 2,842,058 |  |  |  | 2,415,081 |
Less: Accumulated depreciation |  |  | (1,024,694 | ) |  |  | (865,611 | )
Property, plant and equipment, net |  | $ | 1,817,364 |  |  | $ | 1,549,470 |

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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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