Revenues - Schedule of Disaggregation of Revenue by Product Offering (Details) - USD ($)	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Management and advisory fees, net
Disaggregation of Revenue [Line Items]
Revenues	$ 269,171,000	$ 211,173,000
Focused commingled funds
Disaggregation of Revenue [Line Items]
Revenues	170,841,000	118,668,000
SMAs
Disaggregation of Revenue [Line Items]
Revenues	75,278,000	70,379,000
Advisory and other services
Disaggregation of Revenue [Line Items]
Revenues	19,451,000	19,939,000
Fund reimbursement revenues
Disaggregation of Revenue [Line Items]
Revenues	3,601,000	2,187,000
Income-based incentive fees
Disaggregation of Revenue [Line Items]
Revenues	7,000,000.0	4,400,000
Total incentive fees
Disaggregation of Revenue [Line Items]
Revenues	0	190,000
SMAs
Disaggregation of Revenue [Line Items]
Revenues	0	0
Focused commingled funds
Disaggregation of Revenue [Line Items]
Revenues	0	190,000
Carried interest allocations
Disaggregation of Revenue [Line Items]
Total carried interest allocations	72,547,000	113,287,000
Carried interest allocations, SMAs
Disaggregation of Revenue [Line Items]
Total carried interest allocations	(20,662,000)	95,364,000
Carried interest allocation, focused commingled funds
Disaggregation of Revenue [Line Items]
Total carried interest allocations	93,209,000	17,923,000
Legacy Greenspring carried interest allocations
Disaggregation of Revenue [Line Items]
Total carried interest allocations	37,171,000	39,637,000
Legacy carried interest allocation, SMAs
Disaggregation of Revenue [Line Items]
Total carried interest allocations	35,000	98,000
Legacy carried interest allocation, focused comingled funds
Disaggregation of Revenue [Line Items]
Total carried interest allocations	37,136,000	39,539,000
Legacy gross carried interest allocation, focused comingled funds
Disaggregation of Revenue [Line Items]
Total carried interest allocations	$ 600,000	$ 4,900,000