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Financial Instruments and Fair Value - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate cost basis for non-qualified deferred compensation plan	$ 42,500	$ 37,200
Acquisition earnout accruals, non-current	38,255	38,601
Earnout | Fair Value, Inputs, Level 3 | Non-Current and Other Non-Current Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Acquisition earnout accruals, non-current	38,300	38,600
Contingent Compensation | Fair Value, Inputs, Level 3 | Current Accrued Salaries and Benefits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Acquisition earnout accruals, current	4,100	6,000
Contingent Compensation | Fair Value, Inputs, Level 3 | Non-Current Accrued Salaries and Benefits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Acquisition earnout accruals, non-current	$ 11,400	$ 12,900

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