Summary of Significant Accounting Policies - Summary of Disaggregates of Management Services Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Total revenue	$ 15,368	$ 12,746	$ 42,435	$ 39,422
Management and Advisory Fees
Disaggregation of Revenue [Line Items]
Total revenue	14,933	12,709	41,735	39,037
Management and Advisory Fees | Mutual Fund Management Fees
Disaggregation of Revenue [Line Items]
Total revenue	6,378	5,194	16,748	15,715
Management and Advisory Fees | ETF Management Fees
Disaggregation of Revenue [Line Items]
Total revenue	1,877	2,180	4,817	7,291
Management and Advisory Fees | Separately Managed Account Management Fees
Disaggregation of Revenue [Line Items]
Total revenue	4,739	4,313	14,737	13,020
Management and Advisory Fees | Proprietary Fund Management Fees
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,939	$ 1,022	$ 5,433	$ 3,011