Inventories - Schedule of Major Classifications of Inventories (Details) - USD ($) $ in Thousands	Oct. 31, 2023	Jul. 31, 2023
Inventory [Line Items]
Work in process	$ 348,032	$ 313,006
Raw materials	517,116	563,614
Chassis	672,618	681,122
Subtotal	1,876,833	1,815,674
Excess of FIFO costs over LIFO costs	(162,604)	(162,604)
Total inventories, net	1,714,229	1,653,070
Recreational vehicles
Inventory [Line Items]
Finished products	252,534	164,456
Other
Inventory [Line Items]
Finished products	$ 86,533	$ 93,476