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Inventories (Tables)
 9 Months Ended
May 26, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consist of the following:
(In thousands)
 
May 26,
2018
 
August 26,
2017
Finished goods
 
$
34,954

 
$
16,947

Work-in-process
 
60,206

 
60,818

Raw materials
 
118,875

 
99,919

Total
 
214,035

 
177,684

LIFO reserve
 
(36,657
)
 
(35,419
)
Total inventories
 
$
177,378

 
$
142,265