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Financial Instruments and Financial Risk Management - Fair Value by Hierarchy (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Financial Instruments and Financial Risk Management |  |  |
Fair value gain on financial asset - FID | $ 741,000 | $ 0 |
Financial asset - FID |  |  |
Financial Instruments and Financial Risk Management |  |  |
Financial assets | 48,879,000 |  | $ 48,138,000
SWA |  |  |
Financial Instruments and Financial Risk Management |  |  |
Financial assets | 28,800,000 |  | 28,400,000
ETX |  |  |
Financial Instruments and Financial Risk Management |  |  |
Financial assets | 20,100,000 |  | 19,700,000
Investment in Aqualung |  |  |
Financial Instruments and Financial Risk Management |  |  |
Financial assets | 5,350,000 |  | 2,335,000
Fair value gain on financial asset - FID | 3,000,000 | $ 0 |
Level 3 of fair value hierarchy | Financial asset - FID |  |  |
Financial Instruments and Financial Risk Management |  |  |
Financial assets | 48,879,000 |  | 48,138,000
Level 3 of fair value hierarchy | Investment in Aqualung |  |  |
Financial Instruments and Financial Risk Management |  |  |
Financial assets | $ 5,350,000 |  | $ 2,335,000

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