Fair Value Measurements - Summary of Financial Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financial Liabilities
Contingent consideration arrangements	$ (305,553)	$ (309,380)
Fair Value on Recurring Basis
Financial Assets
Investments in proprietary funds	800	912
Deferred compensation plan investments	31,588	30,812
Interest rate swap asset	29,234	7,774
Total Financial Assets	61,622	39,498
Financial Liabilities
Contingent consideration arrangements	(305,000)	(308,500)
Total Financial Liabilities	(305,000)	(308,500)
Fair Value on Recurring Basis | Level 1
Financial Assets
Investments in proprietary funds	800	912
Deferred compensation plan investments	31,588	30,812
Total Financial Assets	32,388	31,724
Fair Value on Recurring Basis | Level 2
Financial Assets
Interest rate swap asset	29,234	7,774
Total Financial Assets	29,234	7,774
Fair Value on Recurring Basis | Level 3
Financial Liabilities
Contingent consideration arrangements	(305,000)	(308,500)
Total Financial Liabilities	$ (305,000)	$ (308,500)