STATEMENT OF CASH FLOWS SUPPLEMENTAL INFORMATION - Cash Used for Operating Activities Reflect Cash Payments for Interest and Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Supplemental Cash Flow Elements [Abstract]
Cash paid for interest	$ 32,799	$ 38,525
Cash paid for income taxes	$ 4,991	$ 5,451