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Investment Securities - Schedule of Investment Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]    
Debt securities available for sale $ 71,624 $ 81,643
Long-term investment securities at fair value 29,177 28,919
Total equity securities at fair value 64,588 63,712
Total investment securities at fair value 136,212 145,355
Current investment securities at fair value 107,035 116,436
Equity-method investments 15,882 16,040
Total long-term investments 45,059 44,959
Equity securities at cost 2,755 2,755
Marketable equity securities    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities at fair value: 12,973 12,724
Mutual funds invested in debt securities    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities at fair value: $ 22,438 $ 22,069