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Investment in Low Carbon Royalties (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 21, 2023 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Investment in Low Carbon Royalties |  |  |  |  |  |
Percentage of contribution to gross royalty | 2.00% |  |  |  |  |
Royalty expense | $ 5,000 |  |  |  |  |
Equity-accounted investment income (loss) |  | $ 89 | $ (61) | $ 54 | $ (139) | $ (226)
Return of capital |  |  |  | 346 |  |
Royalty liability |  | $ 14,000 |  | $ 14,000 |  | $ 14,000
Low Carbon Royalties |  |  |  |  |  |
Investment in Low Carbon Royalties |  |  |  |  |  |
Percentage of ownership |  | 32.00% |  | 32.00% |  | 32.00%
Return of capital, Per share |  | $ 0.025 |  |  |  |
Return of capital |  | $ 300 |  |  |  |
TOML Acquisition. |  |  |  |  |  |
Investment in Low Carbon Royalties |  |  |  |  |  |
Royalty liability |  | $ 14,000 |  | $ 14,000 |  |

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