Segment Reporting - Reconciliation of Net Income To Adjusted Segment Earnings before Interest, Taxes, Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net income	$ 62,395	$ 47,547	$ 51,428	$ 59,321	$ 109,942	$ 110,749
Income tax provision	22,708		13,353		37,682	30,320
Interest income and other	584		(2,994)		1,926	(2,647)
Interest expense	3,022		2,448		5,961	5,090
Total Adjusted Segment EBITDA	138,981		113,140		251,727	234,208
Segment Reconciling Items
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net income	62,395		51,428		109,942	110,749
Income tax provision	22,708		13,353		37,682	30,320
Interest income and other	584		(2,994)		1,926	(2,647)
Interest expense	3,022		2,448		5,961	5,090
Unallocated corporate expenses	39,026		37,716		73,761	69,055
Segment depreciation expense	9,829		8,452		18,856	16,636
Amortization of intangible assets	1,417		2,737		3,599	5,005
Total Adjusted Segment EBITDA	$ 138,981		$ 113,140		$ 251,727	$ 234,208