Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule of Equity Method Investments
Investments at fair value	$ 305,903	$ 273,892
Investments at cost	281	509
Investments accounted for under the equity method	11,072	11,325
Total investments	317,256	285,726
Investments attributable to noncontrolling interests	(229,341)	(200,687)
Investments excluding investments attributable to noncontrolling interests	87,915	$ 85,039
Level III
Schedule of Equity Method Investments
Investments at cost	$ 300