Inventories - Schedule of Major Classifications of Inventories (Details) - USD ($) $ in Thousands	Oct. 31, 2022	Jul. 31, 2022
Inventory [Line Items]
Work in process	$ 363,275	$ 397,495
Raw materials	779,410	838,474
Chassis	439,550	293,375
Subtotal	1,995,824	1,892,225
Excess of FIFO costs over LIFO costs	(142,952)	(137,452)
Total inventories, net	1,852,872	1,754,773
Recreational vehicles
Inventory [Line Items]
Finished products	282,444	236,311
Other
Inventory [Line Items]
Finished products	$ 131,145	$ 126,570