Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands	May 31, 2023	Aug. 31, 2022	May 31, 2022
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 82,323	$ 93,469	$ 93,956
Work in process	12,720	12,603	18,941
Finished goods and purchased parts, net	95,847	110,022	105,042
Total inventory value before LIFO adjustment	190,890	216,094	217,939
Less adjustment to LIFO value	(24,131)	(22,318)	(22,373)
Inventories, net	$ 166,759	$ 193,776	$ 195,566

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

+ References

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

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Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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