Consolidated Statements of Stockholders' Equity and Comprehensive Income (Loss) Statement (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning balance at Oct. 02, 2009	$ 1,108,779	$ 43,204	$ (36,307)	$ 1,568,416	$ (465,154)	$ (1,380)
Beginning balance (in shares) at Oct. 02, 2009		172,815	5,058
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	137,294				137,294
Pension and other OCI adjustment	83					83
Other comprehensive loss	83					83
Comprehensive income	137,377
Issuance and expense of common shares for stock purchase plans, 401(k), stock option plans and other	70,931	1,521		69,410
Issuance and epense of common shares for stock pruchase plans, 401(k), stock option plans and other (in shares)		6,083
Reacquisition of equity components of convertible notes	(28,832)			(28,832)
Excess tax benefit from share based compensation	11,491			11,491
Issuance and expense of common shares for restricted stock and performance shares	21,262	432		20,830
Issuance and expense of common shares for restricted stock and performance shares (in shares)		1,727
Shares withheld for taxes	(4,412)	(91)	(4,412)	91
Shares withheld for taxes (in shares)		(362)	362
Ending balance at Oct. 01, 2010	1,316,596	45,066	(40,719)	1,641,406	(327,860)	(1,297)
Ending balance (in shares) at Oct. 01, 2010		180,263	5,420
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	226,585				226,585
Pension and other OCI adjustment	(34)					(34)
Other comprehensive loss	(34)					(34)
Comprehensive income	226,551
Issuance and expense of common shares for stock purchase plans, 401(k), stock option plans and other	101,731	1,650		100,081
Issuance and epense of common shares for stock pruchase plans, 401(k), stock option plans and other (in shares)		6,598
Share repurchase program	(70,043)	(692)	(70,043)	692
Share repurchase program (in shares)		(2,768)	2,768
Excess tax benefit from share based compensation	17,572			17,572
Issuance and expense of common shares for restricted stock and performance shares	36,780	781		35,999
Issuance and expense of common shares for restricted stock and performance shares (in shares)		3,126
Shares withheld for taxes	(20,092)	(208)	(20,092)	208
Shares withheld for taxes (in shares)		(833)	833
Ending balance at Sep. 30, 2011	1,609,095	46,597	(130,854)	1,795,958	(101,275)	(1,331)
Ending balance (in shares) at Sep. 30, 2011		186,386	9,021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	202,078				202,078
Pension and other OCI adjustment	(262)					(262)
Other comprehensive loss	(262)					(262)
Comprehensive income	201,816
Issuance and expense of common shares for stock purchase plans, 401(k), stock option plans and other	86,696	1,113		85,583
Issuance and epense of common shares for stock pruchase plans, 401(k), stock option plans and other (in shares)		4,451
Share repurchase program	(12,405)	(188)	(12,405)	188
Share repurchase program (in shares)		(750)	750
Reacquisition of equity components of convertible notes	(21,530)			(21,530)
Excess tax benefit from share based compensation	11,352			11,352
Issuance and expense of common shares for restricted stock and performance shares	49,031	770		48,261
Issuance and expense of common shares for restricted stock and performance shares (in shares)		3,079
Shares withheld for taxes	(18,580)	(218)	(18,580)	218
Shares withheld for taxes (in shares)		(870)	870
Ending balance at Sep. 28, 2012	$ 1,905,475	$ 48,074	$ (161,839)	$ 1,920,030	$ 100,803	$ (1,593)
Ending balance (in shares) at Sep. 28, 2012		192,296	10,641