Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net - Components of Property and Equipment (Detail)

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Property and Equipment, Net - Components of Property and Equipment (Detail) - USD ($)
$ in Thousands
Sep. 30, 2017
Sep. 24, 2016
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 513,407 $ 458,812
Accumulated depreciation and amortization (332,494) (300,588)
Property and equipment, net 180,913 158,224
Land    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 8,942 8,825
Buildings and Improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 131,280 115,965
Transportation Equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 7,141 5,574
Machine and Warehouse Equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 221,329 193,525
Capitalized Software    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 117,360 109,641
Office Furniture and Equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 27,355 $ 25,282