PROPERTY, PLANT AND EQUIPMENT (Detail) - USD ($) $ in Thousands	Jul. 31, 2020	Jul. 31, 2019
Property, Plant and Equipment [Line Items]
Total cost		$ 1,362,120
Operating lease right-of-use assets	$ 33,609
Finance lease right-of-use assets	3,672
Total cost	1,456,986
Less accumulated depreciation	(349,337)
Property, plant and equipment, net	1,107,649
Less accumulated depreciation		(269,649)
Property, plant and equipment, net	1,107,649	1,092,471
Land
Property, Plant and Equipment [Line Items]
Total cost	136,200	142,475
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total cost	760,986	742,736
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total cost	438,985	389,666
Rental vehicles
Property, Plant and Equipment [Line Items]
Total cost	$ 83,534	$ 87,243