Revenue - Disaggregation of Revenue By Product (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 46,738	$ 33,988	$ 90,019	$ 66,756
Management and Advisory Fees
Disaggregation of Revenue [Line Items]
Total revenues	46,451	33,517	89,478	66,090
Subscriptions
Disaggregation of Revenue [Line Items]
Total revenues	166	156	328	333
Other Revenue
Disaggregation of Revenue [Line Items]
Total revenues	$ 121	$ 315	$ 213	$ 333