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Fair Value Measurements - Narrative (Details) $ in Thousands | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
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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 |

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