Other expense/(income), net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Currency transactions	$ (1,179)	$ 13,569	$ (4,471)
Bank fees and other costs	373	367	348
Pension settlements and curtailments	0	411	450
Components of net periodic pension and postretirement cost other than service	156	1,561	1,105
Other	3,671	(2,486)	1,011
Total	$ 3,021	$ 13,422	$ (1,557)