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Inventories, net
 3 Months Ended
Dec. 28, 2019
Inventory Disclosure [Abstract]  
Inventories, net Inventories, net
Inventories, net of allowance for obsolescence, consist of the following (in thousands):
 
December 28, 2019December 29, 2018September 28, 2019
Raw materials$156,464  $134,955  $145,331  
Work in progress68,489  34,553  51,154  
Finished goods314,213  306,181  255,870  
Supplies17,313  18,056  13,842  
Total inventories, net$556,479  $493,745  $466,197