UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 148,157	$ 67,075	$ 193,471	$ 88,811
Other comprehensive (loss) income, net of tax:
Unrealized loss on available-for-sale securities	(128)	(48)	(656)	(122)
Unrealized gain (loss) on fair value of interest rate hedge	11,243	(349)	35,924	2,759
Reclassification adjustment for interest rate hedge amounts realized in net income	2,164	2,494	5,358	4,942
Unfunded pension liability	20	0	10	0
Foreign currency translation adjustments	(13,838)	8,543	(7,326)	15,009
Other comprehensive (loss) income, net of tax	(539)	10,640	33,310	22,588
Comprehensive income	$ 147,618	$ 77,715	$ 226,781	$ 111,399