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. 29, 2012	$ 963,781	$ 6,075,341		$ (214,133)	$ 63,479	$ (4,960,906)
Common Stock, Shares, Issued at Sep. 29, 2012			94,971
Treasury Stock, Shares at Sep. 29, 2012				(13,336)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances under stock plans			2,687
Issuances Under Stock Plans, Value	11,611	11,611
Stock-based compensation	17,524	17,524
Repurchases of Treasury Stock, Shares				(169)
Repurchases of Treasury Stock, Value	(1,525)			$ (1,525)
Other comprehensive income (loss)	20,822				20,822
Net income	79,351					79,351
Treasury Stock, Shares at Sep. 28, 2013				(13,505)
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)			(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		95,733
Treasury Stock, Shares at Sep. 27, 2014	(13,576)			(13,576)
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