Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Apr. 30, 2022	Jul. 31, 2021
Property, Plant, Equipment, and ROU Assets [Line Items]
Lease right-of-use assets – operating	$ 46,405	$ 42,601
Lease right-of-use assets – finance	6,450	7,010
Total cost	1,743,963	1,628,585
Less accumulated depreciation	(510,056)	(443,454)
Property, plant and equipment, net	1,233,907	1,185,131
Land
Property, Plant, Equipment, and ROU Assets [Line Items]
Property, plant and equipment	146,154	142,746
Buildings and improvements
Property, Plant, Equipment, and ROU Assets [Line Items]
Property, plant and equipment	898,111	837,065
Machinery and equipment
Property, Plant, Equipment, and ROU Assets [Line Items]
Property, plant and equipment	595,344	523,714
Rental vehicles
Property, Plant, Equipment, and ROU Assets [Line Items]
Property, plant and equipment	$ 51,499	$ 75,449