Investment Securities - Equity in Earnings (Losses) from Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses) from investments	$ 959	$ (2,311)	$ 800	$ (4,553)
Mutual fund and hedge funds
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses) from investments	$ 959	$ (2,311)	$ 800	$ (4,553)