Mineral Rights and Properties - Schedule of Mineral Rights and Properties (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Mineral Rights and Properties - Schedule of Mineral Rights and Properties (Details) [Line Items] | ||
| Mineral rights and properties total | $ 779,730 | $ 586,982 |
| Producing Mineral Properties [Member] | ||
| Mineral Rights and Properties - Schedule of Mineral Rights and Properties (Details) [Line Items] | ||
| Mineral rights and properties total | 386,830 | 332,631 |
| Non-Producing Mineral Properties [Member] | ||
| Mineral Rights and Properties - Schedule of Mineral Rights and Properties (Details) [Line Items] | ||
| Mineral rights and properties total | $ 392,900 | $ 254,351 |