CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (1,351)	$ (180,376)	$ 194,319
Other comprehensive income, net of tax:
Foreign currency translations, net of tax of $(767), $2,374 and $3,071, respectively	(34,168)	37,252	75,319
Net unrealized gain (loss) on cash flow hedges, net of tax of $1,738, $(583) and $49, respectively	5,214	(1,748)	146
Net unrealized (loss) gain on available for sale securities, net of tax of $(2,217), $(816) and $1,970, respectively	(6,651)	(2,447)	5,910
Adjustments to pension and postretirement plans, net of tax of $17,986, $(20,440) and $(1,270), respectively	54,618	(70,623)	(845)
Amortization of pension and postretirement costs, net of tax of $12,755, $11,930 and $9,497, respectively	39,806	38,578	28,288
Other comprehensive income, net of tax	58,819	1,012	108,818
Comprehensive income (loss)	$ 57,468	$ (179,364)	$ 303,137