Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 23, 2012	Jun. 25, 2011	Jun. 23, 2012	Jun. 25, 2011
Numerator for basic and diluted earnings per share:
Net income	$ 73,296	$ 56,348	$ 270,741	$ 124,132
Denominator:
Basic weighted average shares outstanding	155,459,690	147,663,350	155,071,117	143,606,691
Effect of dilutive securities - stock options (in shares)	3,839,888	5,681,039	4,293,323	5,750,789
Diluted weighted average shares outstanding	159,299,578	153,344,389	159,364,440	149,357,480
Basic and diluted net income per common share
Basic net income per common share (in dollars per share)	$ 0.47	$ 0.38	$ 1.75	$ 0.86
Diluted net income per common share (in dollars per share)	$ 0.46	$ 0.37	$ 1.70	$ 0.83
Diluted earnings per share, other disclosure
Antidilutive securities excluded from computation of earnings per share (in shares)	1,198,000	360,000	557,000	166,000