Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Stock-Based Compensation - Summary of Stock Option Activity (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 24, 2016
Number of Shares      
Beginning Balance, Outstanding, Number of Shares 2,471    
Granted, Number of Shares 547    
Exercised, Number of Shares (627)    
Cancelled or expired, Number of Shares (62)    
Ending Balance, Outstanding, Number of Shares 2,329 2,471  
Weighted Average Exercise Price per Share      
Beginning Balance, Outstanding, Weighted Average Exercise Price per share (in usd per share) $ 16.79 $ 11.46  
Granted, Weighted Average Exercise Price per share (in usd per share) 36.72    
Exercised, Weighted Average Exercise Price per share (in usd per share) 12.18    
Cancelled or expired, Weighted Average Exercise Price per share (in usd per share) 22.51    
Ending Balance, Outstanding, Weighted Average Exercise Price per share (in usd per share) $ 22.56 $ 16.79 $ 11.46
Exercisable, Number of Shares 636 458 1,732
Expected to vest, Number of Shares 1,560    
Exercised, Weighted Average Exercise Price per share (in usd per share) $ 16.35   $ 10.80
Expected to vest, Weighted Average Exercise Price per share (in usd per share) $ 24.90    
Outstanding, Weighted Average Remaining Contractual Life 4 years 4 years 2 years
Exercisable, Weighted Average Remaining Contractual Life 3 years   2 years
Expected to vest, Weighted Average Remaining Contractual Life 4 years    
Outstanding, Aggregate Intrinsic Value $ 26,543 $ 50,420 $ 22,954
Exercisable, Aggregate Intrinsic Value 10,731   $ 12,097
Expected to Vest, Aggregate Intrinsic Value $ 12,861