Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Dec. 29, 2018
Sep. 29, 2018
Inventory Disclosure [Abstract]    
Inventory valuation reserves $ 10,900 $ 10,500
Inventories, net of reserves:    
Raw materials 13,707 9,641
Work in process 14,945 18,327
Finished goods 159,001 147,015
Inventories, net $ 187,653 $ 174,983