Quarterly report pursuant to Section 13 or 15(d)

Inventories, net - Summary of Inventories, Net of Allowance for Obsolescence (Details)

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Inventories, net - Summary of Inventories, Net of Allowance for Obsolescence (Details) - USD ($)
$ in Thousands
Mar. 26, 2016
Sep. 26, 2015
Mar. 28, 2015
Inventory, Net [Abstract]      
Raw materials $ 113,779 $ 94,969 $ 99,490
Work in progress 15,267 15,268 15,601
Finished goods 252,453 215,673 252,104
Supplies 9,255 10,036 15,133
Total inventories, net $ 390,754 $ 335,946 $ 382,328