CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance (in shares) at Dec. 31, 2021				102,959,000	102,959,000
Beginning balance at Dec. 31, 2021	$ 295,913	$ (13,910)	$ 282,003	$ 103	$ 103	$ 2,387,039	$ (32,249)	$ 2,354,790	$ (2,087,957)	$ 18,339	$ (2,069,618)	$ (3,272)	$ (3,272)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,529)								(1,529)
Other comprehensive income (loss), net of tax	(1,765)											(1,765)
Issuance of common stock under stock option, award and purchase plans, net (in shares)				1,877,000
Issuance of common stock under award and purchase plans, net	274			$ 2		272
Repurchase of common stock (in shares)				(233,000)
Repurchase of common stock	(2,141)								(2,141)
Stock-based compensation	7,811					7,811
Ending balance (in shares) at Apr. 01, 2022				104,603,000
Ending balance at Apr. 01, 2022	$ 284,653			$ 105		2,362,873			(2,073,288)			(5,037)
Beginning balance (in shares) at Dec. 31, 2022	109,871,000			109,871,000
Beginning balance at Dec. 31, 2022	$ 324,506			$ 110		2,380,651			(2,046,569)			(9,686)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	5,093								5,093
Other comprehensive income (loss), net of tax	2,031											2,031
Issuance of common stock under stock option, award and purchase plans, net (in shares)				1,461,000
Issuance of common stock under award and purchase plans, net	$ (3,268)			$ 1		(3,269)
Repurchase of common stock (in shares)	0
Stock-based compensation	$ 7,424					7,424
Ending balance (in shares) at Mar. 31, 2023	111,332,000			111,332,000
Ending balance at Mar. 31, 2023	$ 335,786			$ 111		$ 2,384,806			$ (2,041,476)			$ (7,655)