Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net (Loss) Income	$ (8,635)	$ 2,378	$ (52,982)
Other Comprehensive (Loss) Income, net of tax
Net unrealized (losses) gains on available-for-sale securities	(584)	316	279
Defined benefit plan adjustments	4,008	(395)	(1,185)
Foreign currency translation	(3,699)	4,857	(1,480)
Other Comprehensive (loss) Income, net of tax	(275)	4,778	(2,386)
Comprehensive (Loss) Income, net of tax	$ (8,910)	$ 7,156	$ (55,368)