Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock And Additional Paid in Capital	Number of Common Shares	Treasury Stock	Accumulated Other Comprehensive Income	Accumulated Deficit
Balance at Sep. 28, 2013	$ 1,091,564	$ 6,104,476		$ (215,658)	$ 84,301	$ (4,881,555)
Common Stock, Shares, Issued at Sep. 28, 2013			97,658
Treasury Stock, Shares at Sep. 28, 2013				(13,505)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans			2,234
Issuances Under Stock Plans, Value	16,859	16,859
Stock-based compensation	18,789	18,789
Repurchases of Treasury Stock, Shares				(71)
Repurchases of Treasury Stock, Value	(1,199)			$ (1,199)
Stock Repurchased and Retired During Period, Shares			(4,159)
Repurchase and retirement of treasury stock, value	(75,038)	(75,038)
Other comprehensive income (loss)	(1,385)				(1,385)
Net income	197,165					197,165
Treasury Stock, Shares at Sep. 27, 2014				(13,576)
Balance at Sep. 27, 2014	1,246,755	6,065,086		$ (216,857)	82,916	(4,684,390)
Common Stock, Shares, Issued at Sep. 27, 2014			95,733
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans			1,727
Issuances Under Stock Plans, Value	18,724	18,724
Stock-based compensation	20,653	20,653
Repurchases of Treasury Stock, Shares				(4,672)
Repurchases of Treasury Stock, Value	(97,693)			$ (97,693)
Stock Repurchased and Retired During Period, Shares			(1,154)
Repurchase and retirement of treasury stock, value	(25,069)	(25,069)
Acquisition of non-controlling interest	(3,815)	(3,815)
Other comprehensive income (loss)	(16,345)				(16,345)
Net income	$ 377,261					377,261
Treasury Stock, Shares at Oct. 03, 2015	(18,248)			(18,248)
Balance at Oct. 03, 2015	$ 1,520,471	6,075,579		$ (314,550)	66,571	(4,307,129)
Common Stock, Shares, Issued at Oct. 03, 2015	96,306		96,306
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans			1,835
Issuances Under Stock Plans, Value	$ 18,221	18,221
Stock-based compensation	26,709	26,709
Repurchases of Treasury Stock, Shares				(6,862)
Repurchases of Treasury Stock, Value	(142,246)			$ (142,246)
Other comprehensive income (loss)	(1,190)				(1,190)
Net income	$ 187,838					187,838
Treasury Stock, Shares at Oct. 01, 2016	(25,110)			(25,110)
Balance at Oct. 01, 2016	$ 1,609,803	$ 6,120,509		$ (456,796)	$ 65,381	$ (4,119,291)
Common Stock, Shares, Issued at Oct. 01, 2016	98,141		98,141