CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND SERIES A CONVERTIBLE PREFERRED STOCK - USD ($)	Preferred stock Cumulative effect of adopting ASU 2020-06 Series A Convertible Preferred stock	Preferred stock Cumulative effect of adopting ASU 2020-06, adjusted balance Series A Convertible Preferred stock	Preferred stock Series A Convertible Preferred stock	Common Stock Cumulative effect of adopting ASU 2020-06, adjusted balance	Common Stock	Additional Paid-in Capital Cumulative effect of adopting ASU 2020-06, adjusted balance	Additional Paid-in Capital	Retained Earnings Cumulative effect of adopting ASU 2020-06	Retained Earnings Cumulative effect of adopting ASU 2020-06, adjusted balance	Retained Earnings	Treasury Stock Cumulative effect of adopting ASU 2020-06, adjusted balance	Treasury Stock	Accumulated Other Comprehensive Loss Cumulative effect of adopting ASU 2020-06, adjusted balance	Accumulated Other Comprehensive Loss	Cumulative effect of adopting ASU 2020-06	Cumulative effect of adopting ASU 2020-06, adjusted balance	Total
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting ASU 2020-06					$ 977,000		$ 855,989,000			$ 1,408,333,000		$ (1,693,122,000)		$ (435,000)			$ 571,742,000
Balance (as adjusted) (in shares)					97,685
Beginning balance at Dec. 31, 2019					$ 977,000		855,989,000			1,408,333,000		(1,693,122,000)		(435,000)			571,742,000
Beginning balance (in shares) at Dec. 31, 2019					97,685
Increase (Decrease) in Stockholders' Equity
Net income/(loss)			$ 0		$ 0		0			(136,163,000)		0		0			(136,163,000)
Foreign currency translation adjustment														(936,000)			(936,000)
Change in derivative, net of tax														(2,370,000)			(2,370,000)
Cash dividends declared common stock										(16,376,000)							(16,376,000)
Stock-based compensation					$ 6,000		5,541,000										5,547,000
Stock-based compensation (in shares)					566
Common stock issued under stock-based compensation plans					$ 2,000		111,000										113,000
Common stock issued under stock-based compensation plans (in shares)					203
Treasury stock purchases												(2,586,000)					(2,586,000)
Ending balance at Mar. 31, 2020					$ 985,000		861,641,000			1,255,794,000		(1,695,708,000)		(3,741,000)			418,971,000
Ending balance (in shares) at Mar. 31, 2020					98,454
Beginning balance at Dec. 31, 2019					$ 977,000		855,989,000			1,408,333,000		(1,693,122,000)		(435,000)			571,742,000
Beginning balance (in shares) at Dec. 31, 2019					97,685
Increase (Decrease) in Stockholders' Equity
Net income/(loss)																	(221,048,000)
Foreign currency translation adjustment																	(347,000)
Change in derivative, net of tax																	(4,059,000)
Preferred stock direct costs.																	(10,257,000)
Ending balance at Sep. 29, 2020			$ 209,926,000		$ 984,000		871,771,000			1,150,726,000		(1,696,364,000)		(4,841,000)			322,276,000
Ending balance (in shares) at Sep. 29, 2020			200		98,438
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting ASU 2020-06					$ 985,000		861,641,000			1,255,794,000		(1,695,708,000)		(3,741,000)			418,971,000
Balance (as adjusted) (in shares)					98,454
Beginning balance at Mar. 31, 2020					$ 985,000		861,641,000			1,255,794,000		(1,695,708,000)		(3,741,000)			418,971,000
Beginning balance (in shares) at Mar. 31, 2020					98,454
Increase (Decrease) in Stockholders' Equity
Net income/(loss)										(56,539,000)							(56,539,000)
Foreign currency translation adjustment														404,000			404,000
Change in derivative, net of tax														(1,467,000)			(1,467,000)
Stock-based compensation							5,162,000										5,162,000
Stock-based compensation (in shares)					(24)
Common stock issued under stock-based compensation plans (in shares)					35
Treasury stock purchases												(266,000)					(266,000)
Series A preferred stock issuance			$ 189,743,000
Series A preferred stock issuance (in shares)			200
Preferred stock direct costs.			$ 10,257,000							(10,257,000)							(10,257,000)
Paid-in-kind preferred stock dividend beneficial conversion feature			(4,079,000)							4,079,000							4,079,000
Ending balance at Jun. 30, 2020			$ 204,079,000		$ 985,000		866,803,000			1,184,919,000		(1,695,974,000)		(4,804,000)			351,929,000
Ending balance (in shares) at Jun. 30, 2020			200		98,465
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting ASU 2020-06			$ 204,079,000		$ 985,000		866,803,000			1,184,919,000		(1,695,974,000)		(4,804,000)			351,929,000
Balance (as adjusted) (in shares)			200		98,465
Net income/(loss)										(28,346,000)							(28,346,000)
Foreign currency translation adjustment														185,000			185,000
Change in derivative, net of tax														(222,000)			(222,000)
Stock-based compensation					$ (1,000)		4,968,000										4,967,000
Stock-based compensation (in shares)					(64)
Common stock issued under stock-based compensation plans (in shares)					37
Treasury stock purchases												(390,000)					(390,000)
Paid-in-kind preferred stock dividend beneficial conversion feature			$ (5,847,000)							5,847,000							5,847,000
Ending balance at Sep. 29, 2020			$ 209,926,000		$ 984,000		871,771,000			1,150,726,000		(1,696,364,000)		(4,841,000)			322,276,000
Ending balance (in shares) at Sep. 29, 2020			200		98,438
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting ASU 2020-06			$ 209,926,000		$ 984,000		871,771,000			1,150,726,000		(1,696,364,000)		(4,841,000)			322,276,000
Balance (as adjusted) (in shares)			200		98,438
Cumulative effect of adopting ASU 2020-06	$ (4,763,000)	$ 213,485,000	$ 218,248,000	$ 986,000	$ 986,000	$ 878,148,000	878,148,000	$ 4,763,000	$ 1,114,850,000	1,110,087,000	$ (1,696,743,000)	(1,696,743,000)	$ (3,785,000)	(3,785,000)	$ 4,763,000	$ 293,456,000	288,693,000
Balance (as adjusted) (in shares)		200	200	98,645	98,645
Beginning balance at Dec. 29, 2020	(4,763,000)	$ 213,485,000	$ 218,248,000	$ 986,000	$ 986,000	878,148,000	878,148,000	4,763,000	1,114,850,000	1,110,087,000	(1,696,743,000)	(1,696,743,000)	(3,785,000)	(3,785,000)	4,763,000	293,456,000	288,693,000
Beginning balance (in shares) at Dec. 29, 2020		200	200	98,645	98,645
Increase (Decrease) in Stockholders' Equity
Net income/(loss)										3,868,000							3,868,000
Foreign currency translation adjustment														174,000			174,000
Change in derivative, net of tax														1,738,000			1,738,000
Cash dividends declared common stock										399,000							399,000
Stock-based compensation					$ 3,000		5,480,000										5,483,000
Stock-based compensation (in shares)					293
Common stock issued under stock-based compensation plans					$ 6,000		20,417,000										20,423,000
Common stock issued under stock-based compensation plans (in shares)					570
Treasury stock purchases												(3,957,000)					(3,957,000)
Cash dividend declared Series A preferred stock, $25.35 per share										(5,070,000)							(5,070,000)
Ending balance at Mar. 30, 2021			$ 213,485,000		$ 995,000		904,045,000			1,114,047,000		(1,700,700,000)		(1,873,000)			316,514,000
Ending balance (in shares) at Mar. 30, 2021			200		99,508
Beginning balance at Dec. 29, 2020	$ (4,763,000)	$ 213,485,000	$ 218,248,000	$ 986,000	$ 986,000	$ 878,148,000	878,148,000	$ 4,763,000	$ 1,114,850,000	1,110,087,000	$ (1,696,743,000)	(1,696,743,000)	$ (3,785,000)	(3,785,000)	$ 4,763,000	$ 293,456,000	288,693,000
Beginning balance (in shares) at Dec. 29, 2020		200	200	98,645	98,645
Increase (Decrease) in Stockholders' Equity
Net income/(loss)																	70,263,000
Foreign currency translation adjustment																	155,000
Change in derivative, net of tax																	3,464,000
Ending balance at Sep. 28, 2021					$ 1,053,000		856,042,000			1,167,001,000		(1,701,984,000)		(166,000)			321,946,000
Ending balance (in shares) at Sep. 28, 2021					105,293
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting ASU 2020-06			$ 213,485,000		$ 995,000		904,045,000			1,114,047,000		(1,700,700,000)		(1,873,000)			316,514,000
Balance (as adjusted) (in shares)			200		99,508
Beginning balance at Mar. 30, 2021			$ 213,485,000		$ 995,000		904,045,000			1,114,047,000		(1,700,700,000)		(1,873,000)			316,514,000
Beginning balance (in shares) at Mar. 30, 2021			200		99,508
Increase (Decrease) in Stockholders' Equity
Net income/(loss)										33,715,000							33,715,000
Foreign currency translation adjustment														219,000			219,000
Change in derivative, net of tax														1,726,000			1,726,000
Cash dividends declared common stock										15,000							15,000
Stock-based compensation					$ 1,000		5,540,000										5,541,000
Stock-based compensation (in shares)					44
Common stock issued under stock-based compensation plans					$ 1,000		4,361,000										4,362,000
Common stock issued under stock-based compensation plans (in shares)					118
Common stock issuance					$ 31,000		167,019,000										167,050,000
Common stock issuance (in shares)					3,125
Treasury stock purchases												(603,000)					(603,000)
Series A preferred stock cash-settled conversion			$ (160,114,000)				(283,637,000)										(283,637,000)
Series A preferred stock cash-settled conversion (in shares)			(150)
Series A preferred stock conversion to common stock			$ (53,371,000)		$ 24,000		53,273,000										53,297,000
Series A preferred stock conversion to common stock (in shares)			(50)		2,401
Deemed dividends on Series A preferred stock										(13,591,000)							(13,591,000)
Ending balance at Jun. 29, 2021					$ 1,052,000		850,601,000			1,134,186,000		(1,701,303,000)		72,000			284,608,000
Ending balance (in shares) at Jun. 29, 2021					105,196
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting ASU 2020-06					$ 1,052,000		850,601,000			1,134,186,000		(1,701,303,000)		72,000			284,608,000
Balance (as adjusted) (in shares)					105,196
Net income/(loss)										32,680,000							32,680,000
Foreign currency translation adjustment														(238,000)			(238,000)
Cash dividends declared common stock										135,000							135,000
Stock-based compensation					$ 1,000		5,441,000										5,442,000
Stock-based compensation (in shares)					59
Common stock issued under stock-based compensation plans					$ 0
Common stock issued under stock-based compensation plans (in shares)					38
Treasury stock purchases												(681,000)					(681,000)
Ending balance at Sep. 28, 2021					$ 1,053,000		856,042,000			1,167,001,000		(1,701,984,000)		(166,000)			321,946,000
Ending balance (in shares) at Sep. 28, 2021					105,293
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting ASU 2020-06					$ 1,053,000		$ 856,042,000			$ 1,167,001,000		$ (1,701,984,000)		$ (166,000)			$ 321,946,000
Balance (as adjusted) (in shares)					105,293