CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury - Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2020		40,103
Beginning balance at Dec. 31, 2020	$ 257,340	$ 40	$ (5,030)	$ 98,819	$ 173,731	$ (10,220)
Beginning balance, treasury stock, at cost (in shares) at Dec. 31, 2020			250
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(30,584)				(30,584)
Foreign currency translation adjustment, net of tax	(2,971)				26	(2,997)
Share-based compensation	4,354			4,354
Vesting of restricted stock awards (in shares)		385
Tax payments for stock issuances (in shares)		(145)
Tax payments for stock issuances	(2,923)			(2,923)
Unrealized gains (losses) on available-for-sale securities	(21)					(21)
Share repurchases (in shares)		(342)	342
Share repurchases	(7,471)		$ (7,471)
Pension adjustment, net of tax	2,056					2,056
Ending balance (in shares) at Dec. 31, 2021		40,001
Ending balance at Dec. 31, 2021	219,780	$ 40	$ (12,501)	100,250	143,173	(11,182)
Ending balance, treasury stock, at cost (in shares) at Dec. 31, 2021			592
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(14,434)				(14,434)
Foreign currency translation adjustment, net of tax	(7,246)				(1)	(7,245)
Share-based compensation	8,642			8,642
Vesting of restricted stock awards (in shares)		263
Tax payments for stock issuances (in shares)		(92)
Tax payments for stock issuances	(1,587)			(1,587)
Unrealized gains (losses) on available-for-sale securities	18					18
Share repurchases (in shares)		(446)	446
Share repurchases	(5,721)		$ (5,721)
Pension adjustment, net of tax	$ 3,859					3,859
Ending balance (in shares) at Dec. 31, 2022	39,726	39,726
Ending balance at Dec. 31, 2022	$ 203,311	$ 40	$ (18,222)	107,305	128,738	(14,550)
Ending balance, treasury stock, at cost (in shares) at Dec. 31, 2022	1,038		1,038
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (29,799)				(29,799)
Foreign currency translation adjustment, net of tax	3,689					3,689
Share-based compensation	14,252			14,252
Vesting of restricted stock awards (in shares)		741
Tax payments for stock issuances (in shares)		(262)
Tax payments for stock issuances	(2,939)			(2,939)
Unrealized gains (losses) on available-for-sale securities	$ 4					4
Share repurchases (in shares)	(2,700)	(2,686)	2,686
Share repurchases	$ (29,155)	$ (2)	$ (29,155)	2
Pension adjustment, net of tax	$ (222)					(222)
Ending balance (in shares) at Dec. 31, 2023	37,519	37,519
Ending balance at Dec. 31, 2023	$ 159,141	$ 38	$ (47,377)	$ 118,620	$ 98,939	$ (11,079)
Ending balance, treasury stock, at cost (in shares) at Dec. 31, 2023	3,724		3,724