Revenue - Disaggregation of Revenue By Product (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenues	$ 57,253	$ 43,281
Management and Advisory Fees
Disaggregation of Revenue [Line Items]
Total revenues	56,587	43,027
Subscriptions
Disaggregation of Revenue [Line Items]
Total revenues	134	162
Other Revenue
Disaggregation of Revenue [Line Items]
Total revenues	$ 532	$ 92