Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.5.0.2
Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Sep. 24, 2016
Sep. 26, 2015
Sep. 27, 2014
Commitments and Contingencies Disclosure [Abstract]      
Outstanding letters of credit $ 2,500    
Restricted cash 10,910 $ 13,157  
Estimated annual purchase commitments for fiscal 2017 104,600    
Estimated annual purchase commitments for fiscal 2018 37,300    
Estimated annual purchase commitments for fiscal 2019 20,500    
Estimated annual purchase commitments for fiscal 2020 14,100    
Estimated annual purchase commitments for fiscal 2021 6,700    
Estimated annual purchase commitments for thereafter $ 600    
Minimum operating lease agreement terms 1 year    
Maximum operating lease agreement terms 13 years    
Operating lease rental expense $ 25,000 $ 23,100 $ 21,300