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Fair Value Measurements - Change in Our Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Investments |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | $ 8,971 | $ 20,427 | $ 28,159 | $ 17,354
Purchase of investments |  | 1,021 |  | 1,021
Sale of investments |  |  | (18,393) |
Reclassification between Level 2 and Level 3 fair value |  | 0 | 0 | 0
Ending balance | 10,409 | 22,754 | 10,409 | 22,754
Equity Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 1,117 | 1,303 | 1,340 | 5,305
Embedded Option |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | (21) | (553) | (904) | (1,714)
Convertible Note |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 342 | 556 | 207 | 788
(Level 1) | Investments |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | 1,568 | 13,279 | 19,561 | 10,154
Purchase of investments |  | 0 |  | 0
Sale of investments |  |  | (18,393) |
Reclassification between Level 2 and Level 3 fair value |  | 0 | 0 | 0
Ending balance | 2,696 | 14,351 | 2,696 | 14,351
(Level 1) | Equity Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 1,128 | 1,072 | 1,528 | 4,197
(Level 1) | Embedded Option |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 0 | 0 | 0 | 0
(Level 1) | Convertible Note |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 0 | 0 | 0 | 0
(Level 2) | Investments |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance |  | 0 | 1,388 | 0
Purchase of investments |  | 1,000 |  | 1,000
Sale of investments |  |  | 0 |
Reclassification between Level 2 and Level 3 fair value |  | 350 | (1,388) | 350
Ending balance | 0 | 1,388 | 0 | 1,388
(Level 2) | Equity Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) |  | 38 | 0 | 38
(Level 2) | Embedded Option |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) |  | 0 | 0 | 0
(Level 2) | Convertible Note |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) |  | 0 | 0 | 0
(Level 3) | Investments |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | 7,403 | 7,148 | 7,210 | 7,200
Purchase of investments |  | 21 |  | 21
Sale of investments |  |  | 0 |
Reclassification between Level 2 and Level 3 fair value |  | (350) | 1,388 | (350)
Ending balance | 7,713 | 7,015 | 7,713 | 7,015
(Level 3) | Equity Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | (11) | 193 | (188) | 1,070
(Level 3) | Embedded Option |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | (21) | (553) | (904) | (1,714)
(Level 3) | Convertible Note |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | $ 342 | $ 556 | $ 207 | $ 788

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