Investment Securities - Equity in Losses from Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Schedule of Equity Method Investments [Line Items]
Equity in losses from investments	$ (941)	$ (619)	$ (141)	$ (5,172)
Mutual fund and hedge funds
Schedule of Equity Method Investments [Line Items]
Equity in losses from investments	$ (941)	$ (619)	$ (141)	$ (5,172)