Condensed Consolidated Statements of Stockholder's Equity Statement - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock and Additional Paid in Capital	Treasury Stock	Accumulated Other Comprehensive Income	Accumulated Deficit	Number of Common Shares
Balance at Sep. 28, 2019		$ 6,267,509	$ (804,118)	$ 42,259	$ (3,863,077)
Common Stock, Shares, Issued at Sep. 28, 2019						105,551
Treasury Stock, Shares at Sep. 28, 2019			(35,831)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans, shares						1,290
Issuances under stock plans, Value		4,852
Stock-based compensation expense		6,906
Repurchases of treasury stock			(553)
Repurchases of Treasury Stock, Value			$ 17,550
Other comprehensive income (loss)	$ 4,259			4,259
Net income	38,345				38,345
Common Stock, Shares, Issued at Dec. 28, 2019						106,841
Treasury Stock, Shares at Dec. 28, 2019			(36,384)
Balance at Dec. 28, 2019	1,679,385	6,279,267	$ (821,668)	46,518	(3,824,732)
Balance at Oct. 03, 2020	1,629,916	6,301,537	$ (983,143)	34,886	(3,723,364)
Common Stock, Shares, Issued at Oct. 03, 2020						107,629
Treasury Stock, Shares at Oct. 03, 2020			(42,630)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans, shares						369
Issuances under stock plans, Value		1,050
Stock-based compensation expense		8,208
Repurchases of treasury stock			(482)
Repurchases of Treasury Stock, Value			$ 12,522
Other comprehensive income (loss)	3,275			3,275
Net income	48,021				48,021
Common Stock, Shares, Issued at Jan. 02, 2021						107,998
Treasury Stock, Shares at Jan. 02, 2021			(43,112)
Balance at Jan. 02, 2021	$ 1,677,948	$ 6,310,795	$ (995,665)	$ 38,161	$ (3,675,343)