Fair Value Measurements (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($) employee
Fair Value Measurements
Number of employees covered under life insurance policies | employee		131
Combined face value of life insurance policies		$ 87,800
Minimum
Fair Value Measurements
Weighted average cost of capital	16.00%
Maximum
Fair Value Measurements
Weighted average cost of capital	19.00%
Contingent earn-out obligations
Fair Value Measurements
Contingent earn-out obligations	$ 103,238	44,222
Reconciliation of the fair value of contingent earn-out obligations that use significant unobservable inputs (Level 3)
Balance at beginning of period	44,222	32,317
Issuances	51,784	4,315
Settlements	(37,202)	(16,017)
Adjustments to fair value	44,434	23,607
Balance at end of period	103,238	44,222
Recurring basis | Total
Fair Value Measurements
Cash and cash equivalents	415,583	205,150
Life insurance-cash surrender value		7,473
Contingent earn-out obligations	103,238	44,222
Reconciliation of the fair value of contingent earn-out obligations that use significant unobservable inputs (Level 3)
Balance at beginning of period	44,222
Balance at end of period	103,238	44,222
Recurring basis | Quoted Market Prices In Active Markets for Identical Assets (Level 1)
Fair Value Measurements
Cash and cash equivalents	415,583	205,150
Recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value Measurements
Life insurance-cash surrender value		7,473
Recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value Measurements
Contingent earn-out obligations	103,238	44,222
Reconciliation of the fair value of contingent earn-out obligations that use significant unobservable inputs (Level 3)
Balance at beginning of period	44,222
Balance at end of period	$ 103,238	$ 44,222