Investment Securities - Schedule of Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Debt securities available for sale	$ 80,865	$ 81,643
Long-term investment securities at fair value	27,911	28,919
Total equity securities at fair value	63,177	63,712
Total investment securities at fair value	144,042	145,355
Current investment securities at fair value	116,131	116,436
Equity-method investments	16,841	16,040
Total long-term investments	44,752	44,959
Equity securities and other long-term investments at cost	7,755	2,755
Marketable equity securities
Debt and Equity Securities, FV-NI [Line Items]
Equity securities at fair value:	12,785	12,724
Mutual funds invested in debt securities
Debt and Equity Securities, FV-NI [Line Items]
Equity securities at fair value:	$ 22,481	$ 22,069