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Mineral Rights and Properties - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Dec. 05, 2023 | Dec. 31, 2022
Mineral Properties [Line Items] |  |  |  |  |  |  |
Payments required to maintain mineral rights | $ 516 |  |  |  |  |  |
Depletion | 2,568 |  |  |  |  |  |
Mineral rights and properties, net | 271,922 | $ 273,961 | $ 274,490 | $ 274,490 | $ 274,490 |  | $ 154,765
Cost of sales |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Depletion | 1,334 |  |  |  |  |  |
Depreciation, amortization and accretion, net |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Depletion | $ 1,234 |  |  |  |  |  |
McKinley |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Ownership interest in subsidiary as a result of transaction (as a percent) | 100.00% |  |  |  |  |  |
Crownpoint |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Ownership interest in subsidiary as a result of transaction (as a percent) | 60.00% |  |  |  |  |  |
Hotsa Butte |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Ownership interest in subsidiary as a result of transaction (as a percent) | 100.00% |  |  |  |  |  |
Crownpoint and Hosta Butte |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Ownership interest in remaining project area (as a percent) | 100.00% |  |  |  |  |  |
Alta Mesa |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Ownership interest in subsidiary as a result of transaction (as a percent) |  |  |  |  |  | 70.00% |
Noncontrolling ownership percentage |  |  |  |  |  | 30.00% |
Crownpoint and Hosta Butte |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Gross profit royalty on uranium produced (as a percent) | 3.00% |  |  |  |  |  |
Alta Mesa |  |  |  |  |  |  |
Mineral Properties [Line Items] |  |  |  |  |  |  |
Mineral rights and properties, net | $ 118,438 |  |  |  |  |  |

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