CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ 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 Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance (in shares) at Dec. 31, 2020				98,204
Beginning balance at Dec. 31, 2020	$ 258,302			$ 98		$ 2,353,559			$ (2,101,211)			$ 5,856
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(6,603)								(6,603)
Other comprehensive loss, net of tax	(5,641)											(5,641)
Issuance of common stock under stock option, award and purchase plans, net (in shares)				4,345
Issuance of common stock under stock option, award and purchase plans, net	9,783			$ 5		9,778
Stock-based compensation	18,955					18,955
Reclassification from equity to mezzanine equity for 2022 Notes	(1,115)					(1,115)
Ending balance (in shares) at Oct. 01, 2021				102,549
Ending balance at Oct. 01, 2021	273,681			$ 103		2,381,177			(2,107,814)			215
Beginning balance (in shares) at Dec. 31, 2020				98,204
Beginning balance at Dec. 31, 2020	$ 258,302			$ 98		2,353,559			(2,101,211)			5,856
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	ASU 2020-06
Ending balance (in shares) at Dec. 31, 2021	102,959			102,959	102,959
Ending 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)
Beginning balance (in shares) at Jul. 02, 2021				101,794
Beginning balance at Jul. 02, 2021	267,324			$ 102		2,373,851			(2,109,344)			2,715
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,530								1,530
Other comprehensive loss, net of tax	(2,500)											(2,500)
Issuance of common stock under stock option, award and purchase plans, net (in shares)				755
Issuance of common stock under stock option, award and purchase plans, net	1,908			$ 1		1,907
Stock-based compensation	6,534					6,534
Reclassification from equity to mezzanine equity for 2022 Notes	(1,115)					(1,115)
Ending balance (in shares) at Oct. 01, 2021				102,549
Ending balance at Oct. 01, 2021	$ 273,681			$ 103		2,381,177			(2,107,814)			215
Beginning balance (in shares) at Dec. 31, 2021	102,959			102,959	102,959
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)	22,051								22,051
Other comprehensive loss, net of tax	(19,041)											(19,041)
Issuance of common stock under stock option, award and purchase plans, net (in shares)				3,033
Issuance of common stock under stock option, award and purchase plans, net	$ 1,115			$ 3		1,112
Repurchase of common stock (in shares)	(600)			(571)
Repurchase of common stock	$ (5,134)			$ (1)					(5,133)
Stock-based compensation	$ 19,627					19,627
Ending balance (in shares) at Sep. 30, 2022	105,421			105,421
Ending balance at Sep. 30, 2022	$ 300,621			$ 105		2,375,529			(2,052,700)			(22,313)
Beginning balance (in shares) at Jul. 01, 2022				105,061
Beginning balance at Jul. 01, 2022	296,836			$ 105		2,371,001			(2,061,320)			(12,950)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	8,740								8,740
Other comprehensive loss, net of tax	(9,363)											(9,363)
Issuance of common stock under stock option, award and purchase plans, net (in shares)				374
Issuance of common stock under stock option, award and purchase plans, net	(1,932)					(1,932)
Repurchase of common stock (in shares)				(14)
Repurchase of common stock	(120)								(120)
Stock-based compensation	$ 6,460					6,460
Ending balance (in shares) at Sep. 30, 2022	105,421			105,421
Ending balance at Sep. 30, 2022	$ 300,621			$ 105		$ 2,375,529			$ (2,052,700)			$ (22,313)