CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (14,434)	$ (30,584)	$ (5,455)
Other comprehensive loss
Cumulative translation adjustment, net of tax	(7,245)	(2,997)	4,534
Pension adjustment, net of tax	3,859	2,056	(1,459)
Unrealized losses on available-for-sale securities	18	(21)	0
Comprehensive loss	$ (17,802)	$ (31,546)	$ (2,380)