Quarterly report pursuant to Section 13 or 15(d)

Inventories, Net - Summary of Inventories, Net of Allowance for Obsolescence (Detail)

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Inventories, Net - Summary of Inventories, Net of Allowance for Obsolescence (Detail) - USD ($)
$ in Thousands
Dec. 26, 2015
Sep. 26, 2015
Dec. 27, 2014
Inventory, Net [Abstract]      
Raw materials $ 118,827 $ 94,969 $ 111,012
Work in progress 15,086 15,268 13,006
Finished goods 271,134 215,673 260,314
Supplies 11,411 10,036 15,604
Total inventories, net $ 416,458 $ 335,946 $ 399,936