Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Apr. 13, 2014	Sep. 29, 2013
Stockholders’ equity:
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	15,000,000	15,000,000
Preferred stock, shares issued	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized	175,000,000	175,000,000
Common stock, shares issued	79,639,009	78,515,171
Treasury stock at cost, shares	39,604,361	35,926,269