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. 25, 2017
Sep. 24, 2016
Mar. 26, 2016
Inventory Disclosure [Abstract]      
Raw materials $ 122,029 $ 120,786 $ 113,779
Work in progress 21,636 17,378 15,267
Finished goods 273,752 217,788 252,453
Supplies 8,968 6,052 9,255
Total inventories, net $ 426,385 $ 362,004 $ 390,754