Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis and Carrying Value (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Level 2
Liabilities
Contingent consideration	$ 0	$ 5,700	$ 4,700	$ 7,400
Level 3
Liabilities
Contingent consideration	183,700	84,600	$ 69,900	$ 58,100
Carrying Value | Recurring Basis
Assets
Cash and cash equivalents	461,500	482,400
Marketable securities	1,006,500	298,100
Collateral for interest rate swap	6,000	6,000
Liabilities
Interest rate swap	2,300	1,200
Deferred consideration		5,700
Contingent consideration	183,700	84,600
Estimate of Fair Value Measurement | Recurring Basis | Level 1
Assets
Cash and cash equivalents	461,500	482,400
Marketable securities	1,006,500	298,100
Collateral for interest rate swap	6,000	6,000
Liabilities
Interest rate swap	0	0
Deferred consideration		0
Contingent consideration	0	0
Estimate of Fair Value Measurement | Recurring Basis | Level 2
Assets
Cash and cash equivalents	0	0
Marketable securities	0	0
Collateral for interest rate swap	0	0
Liabilities
Interest rate swap	2,300	1,200
Deferred consideration		5,700
Contingent consideration	0	0
Estimate of Fair Value Measurement | Recurring Basis | Level 3
Assets
Cash and cash equivalents	0	0
Marketable securities	0	0
Collateral for interest rate swap	0	0
Liabilities
Interest rate swap	0	0
Deferred consideration		0
Contingent consideration	$ 183,700	$ 84,600