Interest Income and Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest Income (Expense), Net [Abstract]
Loans held for investment, net	$ 752,273	$ 378,086	$ 331,813
Investment securities	247,755	129,858	149,915
Margin balances	43,751	25,780	28,155
Financial instruments owned	20,545	15,041	12,594
Other	34,791	(365)	1,355
Total interest income	1,099,115	548,400	523,832
Senior notes	44,424	47,500	54,063
Bank deposits	146,636	4,510	14,550
Other	(10,327)	(6,012)	(2,835)
Total interest expense	$ 201,387	$ 45,998	$ 65,778