Consolidated Company-Sponsored Investment Funds - Additional Information (Details)	3 Months Ended
	Mar. 31, 2025 USD ($) fund	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Derivative [Line Items]
Gains (losses) on derivative instruments	$ (12,776,000)	$ (4,950,000)
Cash collateral payable to trade counterparties	7,200,000		$ 10,400,000
Cash collateral received	11,600,000		5,200,000
Net assets			46,900,000,000
Maximum risk of loss in investment in VIEs			17,300,000
Advisory fee receivables	143,673,000		159,336,000
VIEs
Derivative [Line Items]
Futures, forwards and swaps held	0		0
Gains (losses) on derivative instruments	(100,000)	(500,000)
Cash collateral payable to trade counterparties	21,000		2,000
Delivery of cash collateral	400,000		300,000
Cash collateral received	140,000		85,000
VOEs
Derivative [Line Items]
Futures, forwards and swaps held	0		11,500,000
Gains (losses) on derivative instruments	0	$ 0
Cash collateral payable to trade counterparties	0		0
Cash collateral received	0		0
Non-consolidated VIEs
Derivative [Line Items]
Net assets	44,500,000,000
Maximum risk of loss in investment in VIEs	13,100,000
Advisory fee receivables	$ 91,100,000		115,200,000
Seed capital
Derivative [Line Items]
Number of deconsolidated funds | fund	2
Seed investment, deconsolidated amount			$ 10,400,000