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Inventories (Tables)
6 Months Ended
Feb. 27, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventories consist of the following:
(in thousands)February 27,
2021
August 29,
2020
Finished goods$9,184 $17,141 
Work-in-process145,092 86,651 
Raw materials160,577 114,982 
Total314,853 218,774 
Less last-in, first-out ("LIFO") reserve36,385 35,833 
Inventories, net$278,468 $182,941 

Inventory valuation methods consist of the following:
(in thousands)February 27,
2021
August 29,
2020
LIFO basis$131,760 $88,675 
First-in, first-out basis183,093 130,099 
Total$314,853 $218,774