Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Aug. 31, 2024	Aug. 31, 2023
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 84,725	$ 83,908
Work in process	10,192	7,820
Finished goods and purchased parts	80,877	86,793
Total inventory value before LIFO adjustment	175,794	178,521
Less adjustment to LIFO value	(21,341)	(22,589)
Inventories, net	$ 154,453	$ 155,932