Other (Income)/Expense, net (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Other Income and Expenses [Abstract]
Currency transaction (gains)/losses	$ (148)			$ (2,028)	$ 14,702	$ (3,724)
Bank fees and amortization of debt issuance costs	96			81	264	262
Components of net periodic pension and postretirement cost other than service	384			278	1,523	840
Other	(3,077)			41	(2,574)	716
Total	(2,745)			(1,628)	$ 13,915	$ (1,906)
Foreign currency transaction gain (loss), realized			$ (14,800)
Other income (expense), net	$ 600	$ (600)		$ 3,700