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Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands | May 31, 2022 | Aug. 31, 2021 | May 31, 2021
--- | --- | --- | ---
Inventory Disclosure [Abstract] |  |  |
Raw materials and supplies | $ 93,956 | $ 69,962 | $ 64,087
Work in process | 18,941 | 8,301 | 9,440
Finished goods and purchased parts, net | 105,042 | 75,053 | 71,414
Total inventory value before LIFO adjustment | 217,939 | 153,316 | 144,941
Less adjustment to LIFO value | (22,373) | (8,072) | (8,340)
Inventories, net | $ 195,566 | $ 145,244 | $ 136,601

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