INTANGIBLE ASSETS AND GOODWILL - Components of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	Jul. 31, 2021	Jul. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Cost	$ 1,390,126	$ 1,255,441
Accumulated amortization	452,955	340,717
Dealer networks/customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	861,562	766,198
Accumulated amortization	327,751	252,320
Trademarks
Finite-Lived Intangible Assets [Line Items]
Cost	311,208	275,775
Accumulated amortization	62,675	47,743
Design technology and other intangibles
Finite-Lived Intangible Assets [Line Items]
Cost	215,956	213,468
Accumulated amortization	62,237	40,654
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Cost	1,400	0
Accumulated amortization	$ 292	$ 0