Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 29, 2012	Sep. 24, 2011	Sep. 25, 2010
Income before income taxes:
United States	$ 486,258	$ 248,108	$ 118,494
Foreign	89,883	54,639	14,715
Income before income taxes	576,141	302,747	133,209
United States federal:
Current	75,932	75,225	41,770
Deferred	74,042	(3,327)	(3,694)
Total United States federal	149,974	71,898	38,076
State and local:
Current	40,270	13,939	11,921
Deferred	(712)	(1,758)	(3,235)
Total State and local	39,558	12,181	8,686
Total United States	189,532	84,079	46,762
Foreign:
Current	26,860	21,306	6,941
Deferred	(3,751)	(3,686)
Total foreign	23,109	17,620	6,941
Total tax expense	$ 212,641	$ 101,699	$ 53,703