CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - 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	$ 2,485	$ 5,095	$ 6,467	$ 13,585
Other comprehensive income (loss):
Foreign currency exchange translation adjustments	(5,523)	1,488	(5,196)	(584)
Minimum pension liability, net of tax	1,476	387	1,447	673
Derivative instrument, net of tax	(641)	(77)	2,173	(503)
Other comprehensive income (loss)	(4,688)	1,798	(1,576)	(414)
Comprehensive income (loss)	$ (2,203)	$ 6,893	$ 4,891	$ 13,171