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Fair Value Measurements - Change in Our Investments (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Investment balance at beginning of period | $ 17,354 | $ 14,286
Investment balance at end of period | 20,386 | 13,902
Equity Securities |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | 2,994 | (184)
Embedded Option |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | (199) | (321)
Convertible Note |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | 237 | 121
(Level 1) |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Investment balance at beginning of period | 10,154 | 8,147
Investment balance at end of period | 13,148 | 7,963
(Level 1) | Equity Securities |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | 2,994 | (184)
(Level 1) | Embedded Option |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | 0 | 0
(Level 1) | Convertible Note |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | 0 | 0
(Level 3) |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Investment balance at beginning of period | 7,200 | 6,139
Investment balance at end of period | 7,238 | 5,939
(Level 3) | Equity Securities |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | 0 | 0
(Level 3) | Embedded Option |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | (199) | (321)
(Level 3) | Convertible Note |  |
Investments in and Advances to Affiliates, at Fair Value [Roll Forward] |  |
Unrealized gain | $ 237 | $ 121

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- Definition Amount of unrealized gain (loss) on investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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