Investments - Summary of Various Investment Balances and Method of Accounting (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Summary of Investment Holdings [Line Items]
Accounted for at fair value through net income	$ 648	$ 674
Accounted for at amortized cost assessed for impairment	1,981	1,397
Total investments in stocks	2,629	2,071
Accounted for under the equity method	2,500	2,345
Accounted for under the hypothetical liquidation book value	2,203	2,403
Accounted for under proportional amortization	27,153	24,296
Total investments in partnerships	31,856	29,044
Total other investments	$ 34,485	$ 31,115