Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Nov. 30, 2024	Aug. 31, 2024	Nov. 30, 2023
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 87,861	$ 84,725	$ 87,082
Work in process	12,369	10,192	10,777
Finished goods and purchased parts, net	79,365	80,877	88,043
Total inventory value before LIFO adjustment	179,595	175,794	185,902
Less adjustment to LIFO value	(21,340)	(21,341)	(21,758)
Inventories, net	$ 158,255	$ 154,453	$ 164,144