PARENT COMPANY CONDENSED FINANCIAL INFORMATION - Schedule of Statements of Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Condensed Income Statements, Captions [Line Items]
Selling, general and administrative	$ 144,078	$ 101,972
Total operating expenses	175,009	109,565
Operating loss	(25,279)	(8,306)
Other income (expense):
Interest expense	(41,951)	(29,884)
Other income (expense), net	4,603	2,223
Total other expense	(36,820)	(26,982)
Loss before income taxes	(62,099)	(35,288)
Gains on investments in affiliates, net of tax	(42)	(801)
Net income (loss)	(66,727)	36,715
Parent Company
Condensed Income Statements, Captions [Line Items]
Selling, general and administrative	12,303	16,742
Total operating expenses	12,303	16,742
Operating loss	(12,303)	(16,742)
Other income (expense):
Interest expense	(6,081)	(8,427)
Other income (expense), net	(306)	6,807
Total other expense	(6,387)	(1,620)
Loss before income taxes	(18,690)	(18,362)
Equity (gains) losses of subsidiaries, net of tax	48,079	(54,276)
Gains on investments in affiliates, net of tax	(42)	(801)
Net income (loss)	$ (66,727)	$ 36,715