Mineral Properties (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2026
USD ($)
| |
| Mineral Properties | |
| Beginning balance | $ 43,881 |
| Change in estimated asset retirement costs | 6,234 |
| Depletion and amortization | (3,947) |
| Ending balance | 46,168 |
| Lost Creek Property | |
| Mineral Properties | |
| Beginning balance | 9,183 |
| Change in estimated asset retirement costs | 5,150 |
| Depletion and amortization | (3,947) |
| Ending balance | 10,386 |
| Shirley Basin Project | |
| Mineral Properties | |
| Beginning balance | 19,984 |
| Change in estimated asset retirement costs | 1,084 |
| Ending balance | 21,068 |
| Other U.S. Properties | |
| Mineral Properties | |
| Beginning balance | 14,714 |
| Ending balance | $ 14,714 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Mineral properties, net of adjustments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|