Revenue - Disaggregation of Revenue By Product (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 49,996	$ 38,145	$ 140,015	$ 104,901
Management and Advisory Fees
Disaggregation of Revenue [Line Items]
Total revenues	49,479	37,939	138,957	104,029
Subscriptions
Disaggregation of Revenue [Line Items]
Total revenues	165	153	493	486
Other Revenue
Disaggregation of Revenue [Line Items]
Total revenues	$ 352	$ 53	$ 565	$ 386