CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Shares	Additional Paid-In Capital	Retained Earning (Deficit)	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2019	$ 417,172	$ 423,856	$ 49,748	$ (38,319)	$ (18,113)
Balance (in shares) at Dec. 31, 2019		35,052
Consolidated net income	11,947			11,947
Common shares issued under stock plans	179		179
Common shares issued under stock plans (in shares)		222
Common shares withheld for taxes on vested stock awards	(7,825)		(7,825)
Common shares withheld for taxes on vested stock awards (in shares)		(87)
Repurchases of common shares	(5,500)		(5,500)
Repurchases of common shares (in shares)		(65)
Share-based compensation	3,199		3,199
Other comprehensive income (loss), net of tax	(6,069)				(6,069)
Balance at Apr. 03, 2020	413,103	$ 423,856	39,801	(26,372)	(24,182)
Balance (in shares) at Apr. 03, 2020		35,122
Balance at Dec. 31, 2020	476,809	$ 423,856	58,992	6,202	(12,241)
Balance (in shares) at Dec. 31, 2020		35,163
Consolidated net income	11,310			11,310
Common shares issued under stock plans (in shares)		354
Common shares withheld for taxes on vested stock awards	(18,272)		(18,272)
Common shares withheld for taxes on vested stock awards (in shares)		(133)
Share-based compensation	6,644		6,644
Other comprehensive income (loss), net of tax	(368)				(368)
Balance at Apr. 02, 2021	$ 476,123	$ 423,856	$ 47,364	$ 17,512	$ (12,609)
Balance (in shares) at Apr. 02, 2021		35,384