SEGMENT INFORMATION - Summarized Financial Information of Net Revenue by Geographical Location (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Segment Reporting Information [Line Items]
Total net revenue	$ 782,813	$ 819,830
United States
Segment Reporting Information [Line Items]
Total net revenue	524,249	557,813
China
Segment Reporting Information [Line Items]
Total net revenue	126,611	142,661
Netherlands
Segment Reporting Information [Line Items]
Total net revenue	41,983	51,447
Other
Segment Reporting Information [Line Items]
Total net revenue	$ 89,970	$ 67,909