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Property, Plant and Mine Development, net - Summary of Property, Equipment and Mine Development (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Property, equipment and mine development - net |  |
Property and equipment, gross | $ 284,510 | $ 261,938
Accumulated depreciation and amortization | (131,947) | (105,167)
Total property, equipment and mine development - net | 152,563 | 156,771
Accrued capital expenditures | 1,300 | 1,700
Asset retirement costs |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 7,449 | 1,065
Construction-In-Progress |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 351 | 15,854
Furniture and office equipment |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 1,732 | 1,685
Land |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 9,033 | 9,230
Mineral interests |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 79,543 | 79,964
Light Vehicles And Other Mobile Equipment |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 2,327 | 2,224
Machinery And Equipment |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 41,343 | 33,213
Mill facilities and infrastructure |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 35,917 | 24,973
Mine Development |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | 105,263 | 92,138
Software and licenses |  |
Property, equipment and mine development - net |  |
Property and equipment, gross | $ 1,552 | $ 1,592

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