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Fair Value Measurements - Change in Our Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Investments |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Investment balance at beginning of period | $ 20,427 | $ 16,718 | $ 17,354 | $ 14,286
Purchase of investments | 1,021 | 100 | 1,021 | 350
Reclassification between Level 2 and Level 3 fair value | 0 |  | 0 |
Investment balance at end of period | 22,754 | 16,405 | 22,754 | 16,405
Equity Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 1,303 | (707) | 5,305 | 1,345
Embedded Option |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | (553) | 148 | (1,714) | (50)
Convertible Note |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 556 | 146 | 788 | 474
(Level 1) | Investments |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Investment balance at beginning of period | 13,279 | 10,199 | 10,154 | 8,147
Purchase of investments | 0 | 0 | 0 | 0
Reclassification between Level 2 and Level 3 fair value | 0 |  | 0 |
Investment balance at end of period | 14,351 | 9,492 | 14,351 | 9,492
(Level 1) | Equity Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 1,072 | (707) | 4,197 | 1,345
(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] |  |  |  |
Investment balance at beginning of period | 0 |  | 0 |
Purchase of investments | 1,000 |  | 1,000 |
Reclassification between Level 2 and Level 3 fair value | 350 |  | 350 |
Investment balance at end of period | 1,388 |  | 1,388 |
(Level 2) | Equity Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 38 |  | 38 |
(Level 2) | Embedded Option |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 0 |  | 0 |
(Level 2) | Convertible Note |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 0 |  | 0 |
(Level 3) | Investments |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Investment balance at beginning of period | 7,148 | 6,519 | 7,200 | 6,139
Purchase of investments | 21 | 100 | 21 | 350
Reclassification between Level 2 and Level 3 fair value | (350) |  | (350) |
Investment balance at end of period | 7,015 | 6,913 | 7,015 | 6,913
(Level 3) | Equity Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | 193 | 0 | 1,070 | 0
(Level 3) | Embedded Option |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | (553) | 148 | (1,714) | (50)
(Level 3) | Convertible Note |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Unrealized gain (loss) | $ 556 | $ 146 | $ 788 | $ 474

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- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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