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Inventories (Schedule of Inventories) (Details) - USD ($)
$ in Thousands
Nov. 30, 2023
Aug. 31, 2023
Nov. 30, 2022
Inventory Disclosure [Abstract]      
Raw materials and supplies $ 87,082 $ 83,908 $ 96,811
Work in process 10,777 7,820 12,326
Finished goods and purchased parts, net 88,043 86,793 103,400
Total inventory value before LIFO adjustment 185,902 178,521 212,537
Less adjustment to LIFO value (21,758) (22,589) (24,133)
Inventories, net $ 164,144 $ 155,932 $ 188,404