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Investments in Equity and Marketable Securities - Narrative (Details) $ / shares in Units, $ / shares in Units, $ in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2025 USD ($) shares | Jun. 30, 2025 CAD ($) $ / shares shares | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) | Feb. 29, 2024 $ / shares
Debt Securities, Available-for-Sale [Line Items] |  |  |  |  |  |  |
Fair value gain/(loss) on marketable securities | $ 7,671 |  | $ 0 | $ 7,671 | $ 252 |  |
Proceeds from issuance of common stock |  |  |  | 0 | 2,008 |  |
Unrealized (loss) gain on marketable securities | $ 2,810 |  | $ (1,396) | $ (7,066) | $ (2,217) | $ (2,711) |
Private placement |  |  |  |  |  |  |
Debt Securities, Available-for-Sale [Line Items] |  |  |  |  |  |  |
Shares issued in sale of minority interest and collaboration agreement (in shares) | shares | 170,000,000 | 170,000,000 |  |  |  |  |
Sale of stock, price (in dollars per share) | (per share) |  | $ 0.115 |  |  |  |  | $ 3.90
Proceeds from issuance of common stock |  | $ 19,550,000 |  |  |  |  |

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