Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2024

Fair Value Disclosures [Abstract]

Summary of Fair Value Measured at Fair Value on Recurring Basis

	As of September 30, 2024
(in thousands)	Total			Level 1		Level 2		Level 3
Financial Assets
Money market fund	$	169,541		$	169,541	$	—	$	—
Investments in proprietary funds		596			596		—		—
Deferred compensation plan investments		34,147			34,147		—		—
Total Financial Assets	$	204,284		$	204,284	$	—	$	—
Financial Liabilities
Contingent consideration arrangements		(139,600	)		—		—		(139,600	)
Total Financial Liabilities	$	(139,600	)	$	—	$	—	$	(139,600	)

	As of December 31, 2023
(in thousands)	Total			Level 1		Level 2		Level 3
Financial Assets
Money market fund	$	109,183		$	109,183	$	—	$	—
Investments in proprietary funds		534			534		—		—
Deferred compensation plan investments		31,274			31,274		—		—
Total Financial Assets	$	140,991		$	140,991	$	—	$	—
Financial Liabilities
Contingent consideration arrangements		(217,200	)		—		—	$	(217,200	)
Total Financial Liabilities	$	(217,200	)	$	—	$	—	$	(217,200	)

Summary of Change in Contingent Consideration Arrangement Liabilities

(in thousands)	Contingent Consideration Liabilities
Balance, December 31, 2023	$	217,200
WestEnd earn-out payment		(80,000	)
WestEnd change in fair value measurement		2,400
Balance, September 30, 2024	$	139,600