Consolidated Company-Sponsored Investment Funds - Summary of Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives - VIEs	$ 19,718	$ 12,985
Derivatives	14,109	17,615
Total liabilities measured at fair value	22,756	26,220
Level 1 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives - VIEs	3,645	832
Total assets measured at fair value	246,795	330,081
Derivatives	97	366
Total liabilities measured at fair value	97	366
Level 2 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives - VIEs	16,073	12,153
Total assets measured at fair value	420,574	577,321
Derivatives	14,012	17,249
Total liabilities measured at fair value	14,012	17,249
Company-Sponsored Investment Funds | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	421,136	340,611
Total liabilities measured at fair value	25,059	20,084
Company-Sponsored Investment Funds | Level 1 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	29,875	22,772
Total liabilities measured at fair value	326	112
Company-Sponsored Investment Funds | Level 2 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	391,261	317,839
Total liabilities measured at fair value	24,733	19,972
VIEs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives - VIEs	21,611	20,077
Derivatives	25,059	20,084
VIEs | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments - VIEs	373,576	294,035
Derivatives - VIEs	21,611	20,077
Derivatives	25,059	20,084
VIEs | Level 1 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments - VIEs	29,262	22,477
Derivatives - VIEs	348	70
Derivatives	326	112
VIEs | Level 2 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments - VIEs	344,314	271,558
Derivatives - VIEs	21,263	20,007
Derivatives	24,733	19,972
VOEs | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments - VIEs	25,949	26,499
VOEs | Level 1 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments - VIEs	265	225
VOEs | Level 2 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments - VIEs	$ 25,684	$ 26,274