Condensed 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	$ 92,675	$ 94,476	$ 177,550	$ 167,757
Other comprehensive income (loss), net of tax:
Changes in net prior service credit and actuarial losses	539	1,876	1,038	3,754
Change in fair value of derivatives	(60)	828	2,277	1,469
Foreign currency translation	(64,053)	25,669	(51,703)	(7,703)
Other comprehensive (loss) income	(63,574)	28,373	(48,388)	(2,480)
Comprehensive income	$ 29,101	$ 122,849	$ 129,162	$ 165,277