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