Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Summary of Stock Option Activity (Detail)

v2.4.0.8
Stock-Based Compensation - Summary of Stock Option Activity (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 24, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]      
Beginning Balance, Outstanding, Number of Shares 11,638    
Granted, Number of Shares 2,000    
Exercised, Number of Shares (285)    
Cancelled or expired, Number of Shares (782)    
Ending Balance, Outstanding, Number of Shares 12,571 11,638  
Exercisable, Number of Shares 6,409 4,601 4,162
Expected to vest, Number of Shares 5,388    
Beginning Balance, Outstanding, Weighted Average Exercise Price per share $ 10.73    
Granted, Weighted Average Exercise Price per share $ 8.40    
Exercised, Weighted Average Exercise Price per share $ 5.35    
Cancelled or expired, Weighted Average Exercise Price per share $ 9.24    
Ending Balance, Outstanding, Weighted Average Exercise Price per share $ 10.57 $ 10.73  
Exercised, Weighted Average Exercise Price per share $ 11.21 $ 11.34 $ 11.32
Expected to vest, Weighted Average Exercise Price per share $ 9.90    
Beginning Balance, Outstanding, Weighted Average Remaining Contractual Life 3 years 3 years  
Exercisable, Weighted Average Remaining Contractual Life 2 years 2 years 3 years
Expected to vest, Weighted Average Remaining Contractual Life 4 years    
Beginning Balance, Outstanding, Aggregate Intrinsic Value $ 22,172    
Ending Balance, Outstanding, Aggregate Intrinsic Value 1,166 22,172  
Exercisable, Aggregate Intrinsic Value 770 6,708 1,139
Expected to Vest, Aggregate Intrinsic Value $ 347