INCOME TAXES - Schedule of Components of Provision for Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Income Tax Disclosure [Abstract]
U.S. Federal	$ 49,494	$ 48,757	$ 166,402
U.S. state and local	9,891	5,921	21,025
Foreign	1,842	6,611	0
Total current expense	61,227	61,289	187,427
U.S. Federal	6,472	10,862	17,820
U.S. state and local	(197)	(36)	(2,369)
Foreign	(15,990)	(19,914)	0
Total deferred expense (benefit)	(9,715)	(9,088)	15,451
Total income tax expense	$ 51,512	$ 52,201	$ 202,878