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Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Financial Liabilities    
Contingent consideration arrangements $ (149,400) $ (217,200)
Fair Value on Recurring Basis    
Financial Assets    
Money market fund 64,465 109,183
Investments in proprietary funds 572 534
Deferred compensation plan investments 32,952 31,274
Total Financial Assets 97,989 140,991
Financial Liabilities    
Contingent consideration arrangements (149,400) (217,200)
Total Financial Liabilities (149,400) (217,200)
Fair Value on Recurring Basis | Level 1    
Financial Assets    
Money market fund 64,465 109,183
Investments in proprietary funds 572 534
Deferred compensation plan investments 32,952 31,274
Total Financial Assets 97,989 140,991
Fair Value on Recurring Basis | Level 2    
Financial Assets    
Total Financial Assets 0 0
Fair Value on Recurring Basis | Level 3    
Financial Liabilities    
Contingent consideration arrangements (149,400) (217,200)
Total Financial Liabilities $ (149,400) $ (217,200)