Income Taxes - Schedule of Unrecognized Tax Benefit Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Unrecognized Tax Benefits:
Beginning balance	$ 13,622	$ 14,841	$ 20,430
Additions based on tax positions related to the current year	4,664	2,798	2,518
Additions for tax positions of prior years	3,940	1,295	612
Reductions for tax positions of prior years	(365)	(5,087)	(378)
Lapse of statute of limitations	(159)	(117)	(8,140)
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	210	108	201
Ending balance	$ 21,912	$ 13,622	$ 14,841