Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 84,875	$ 73,281
Other comprehensive income (loss), net of tax:
Changes in net prior service credit and actuarial losses	499	1,878
Change in fair value of derivatives	2,337	641
Foreign currency translation	12,350	(33,372)
Other comprehensive income (loss)	15,186	(30,853)
Comprehensive income	$ 100,061	$ 42,428