Fair Value Measurements - Narrative (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration	$ 90,938	$ 128,400
Westchester | Measurement Input, Comparability Adjustment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination, contingent consideration, liability, measurement input	0.09
Westchester | Minimum | Measurement Input, Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination, contingent consideration, liability, measurement input	0.06
Westchester | Maximum | Measurement Input, Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination, contingent consideration, liability, measurement input	0.07
NFJ Investment Group | Measurement Input, Comparability Adjustment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination, contingent consideration, liability, measurement input	0.07
NFJ Investment Group | Minimum | Measurement Input, Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination, contingent consideration, liability, measurement input	0.06
NFJ Investment Group | Maximum | Measurement Input, Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination, contingent consideration, liability, measurement input	0.07
Level 3 | Westchester
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration	$ 11,100
Level 3 | NFJ Investment Group
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration	$ 45,100