Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.3.1.900
Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Sep. 26, 2015
Sep. 27, 2014
Sep. 28, 2013
Commitments and Contingencies Disclosure [Abstract]      
Outstanding letters of credit $ 6,000    
Restricted cash 13,157 $ 14,283  
Estimated annual purchase commitments for fiscal 2016 111,100    
Estimated annual purchase commitments for fiscal 2017 39,200    
Estimated annual purchase commitments for fiscal 2018 24,400    
Estimated annual purchase commitments for fiscal 2019 15,400    
Estimated annual purchase commitments for fiscal 2020 6,800    
Estimated annual purchase commitments for thereafter $ 1,400    
Minimum operating lease agreement terms 1 year    
Maximum operating lease agreement terms 7 years    
Operating lease rental expense $ 23,100 $ 21,300 $ 22,400