Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The Company's assets and liabilities measured at fair value on a recurring basis, excluding the assets and liabilities of CIP discussed in Note 19, as of December 31, 2024 and 2023 by fair value hierarchy level were as follows: 

December 31, 2024
(in thousands)	Level 1		Level 2		Level 3		Total
Assets
Cash equivalents	$	225,736	$	—	$	—	$	225,736
Investment securities - fair value
Sponsored funds	63,296		—		—		63,296
Equity securities	19,019		—		—		19,019
Debt securities	—		1,456		—		1,456
Nonqualified retirement plan assets	15,159		—		—		15,159
Total assets measured at fair value	$	323,210	1,456		$	—	$	324,666
Liabilities
Contingent consideration	$	—	$	—	$	36,100	$	36,100
Total liabilities measured at fair value	$	—	$	—	$	36,100	$	36,100

December 31, 2023
(in thousands)	Level 1		Level 2		Level 3		Total
Assets
Cash equivalents	$	197,240	$	—	$	—	$	197,240
Investment securities - fair value
Sponsored funds	77,433		—		—		77,433
Equity securities	19,871		—		—		19,871
Nonqualified retirement plan assets	12,682		—		—		12,682
Total assets measured at fair value	$	307,226	$	—	$	—	$	307,226
Liabilities
Contingent consideration	$	—	$	—	$	56,200	$	56,200
Total liabilities measured at fair value	$	—	$	—	$	56,200	$	56,200

The assets and liabilities of CIP measured at fair value on a recurring basis as of December 31, 2024 and 2023 by fair value hierarchy level were as follows:

As of December 31, 2024
(in thousands)	Level 1		Level 2		Level 3		Total
Assets
Cash equivalents	$	127,695	$	—	$	—	$	127,695
Debt investments	—		2,239,924		6,676		2,246,600
Equity investments	22,993		111		1,013		24,117
Total assets measured at fair value	$	150,688	$	2,240,035	$	7,689	$	2,398,412
Liabilities
Notes payable	$	—	$	2,171,946	$	—	$	2,171,946
Short sales	356		—		—		356
Total liabilities measured at fair value	$	356	$	2,171,946	$	—	$	2,172,302

As of December 31, 2023
(in thousands)	Level 1		Level 2		Level 3		Total
Assets
Cash equivalents	$	98,101	$	—	$	—	$	98,101
Debt investments	241		2,012,760		36,616		2,049,617
Equity investments	32,642		8		446		33,096
Total assets measured at fair value	$	130,984	$	2,012,768	$	37,062	$	2,180,814
Liabilities
Notes payable	$	—	$	1,922,243	$	—	$	1,922,243
Short sales	518		—		—		518
Total liabilities measured at fair value	$	518	$	1,922,243	$	—	$	1,922,761

Schedule of Liabilities of Consolidated Sponsored Investment Products For Level 3 Investments, Unobservable Inputs Used to Determine Fair Value

The following table presents a reconciliation of beginning and ending balances of the Company's contingent consideration liabilities:

(in thousands)	2024		2023
Contingent consideration, beginning of year	$	56,200	$	78,100
Reduction for payments made	(14,492)		(16,390)
Increase (reduction) of liability related to re-measurement of fair value	(5,608)		(5,510)
Contingent consideration, end of year	$	36,100	$	56,200