Consolidated Company-Sponsored Investment Funds - Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Derivatives	$ 12,985	$ 20,941
Derivatives	17,615	14,944
Total liabilities measured at fair value	26,220	24,329
Recurring
Variable Interest Entity [Line Items]
Investments	304,000
Level 1
Variable Interest Entity [Line Items]
Derivatives	832	2,835
Total assets measured at fair value	330,081	351,975
Derivatives	366	33
Total liabilities measured at fair value	366	33
Level 2
Variable Interest Entity [Line Items]
Derivatives	12,153	18,106
Total assets measured at fair value	577,321	523,272
Derivatives	17,249	14,911
Total liabilities measured at fair value	17,249	14,911
Level 3
Variable Interest Entity [Line Items]
Derivatives	0	0
Total assets measured at fair value	127	121
Derivatives	0	0
Total liabilities measured at fair value	8,605	9,385
NAV Expedient
Variable Interest Entity [Line Items]
Derivatives	0	0
Total assets measured at fair value	37	2,016
Derivatives	0	0
Total liabilities measured at fair value	0	0
Company-sponsored investment funds | Recurring
Variable Interest Entity [Line Items]
Total assets measured at fair value		152,376
Total liabilities measured at fair value	20,084	85
Company-sponsored investment funds | Level 1 | Recurring
Variable Interest Entity [Line Items]
Total assets measured at fair value		15,537
Total liabilities measured at fair value	112	72
Company-sponsored investment funds | Level 2 | Recurring
Variable Interest Entity [Line Items]
Total assets measured at fair value	317,839	136,839
Total liabilities measured at fair value	19,972	13
Company-sponsored investment funds | Level 3 | Recurring
Variable Interest Entity [Line Items]
Total assets measured at fair value	0	0
Total liabilities measured at fair value	0	0
VIEs
Variable Interest Entity [Line Items]
Derivatives	20,077	101
Derivatives	20,084	85
VIEs | Recurring
Variable Interest Entity [Line Items]
Investments		82,027
Derivatives	20,077	101
Derivatives	20,084	85
VIEs | Level 1 | Recurring
Variable Interest Entity [Line Items]
Investments		15,240
Derivatives	70	48
Derivatives	112	72
VIEs | Level 2 | Recurring
Variable Interest Entity [Line Items]
Investments	271,558	66,787
Derivatives	20,007	53
Derivatives	19,972	13
VIEs | Level 3 | Recurring
Variable Interest Entity [Line Items]
Investments	0	0
Derivatives	0	0
Derivatives	0	0
VIEs | NAV Expedient | Recurring
Variable Interest Entity [Line Items]
Investments	10,000
VOEs
Variable Interest Entity [Line Items]
Derivatives		11,483
VOEs | Recurring
Variable Interest Entity [Line Items]
Investments	26,499	58,765
Derivatives		11,483
VOEs | Level 1 | Recurring
Variable Interest Entity [Line Items]
Investments	225	249
Derivatives		0
VOEs | Level 2 | Recurring
Variable Interest Entity [Line Items]
Investments	26,274	58,516
Derivatives		11,483
VOEs | Level 3 | Recurring
Variable Interest Entity [Line Items]
Investments	$ 0	0
Derivatives		$ 0