Income Taxes - Schedule of Unrecognized Tax Benefit Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 10,557
Unrecognized Tax Benefits, Interest on Income Taxes Expense	372	$ 1,013	$ 556
Unrecognized Tax Benefits:
Beginning balance	14,841	20,430	18,362
Additions based on tax positions related to the current year	2,798	2,518	2,467
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	1,295	612	1,586
Reductions for tax positions of prior years	(5,087)	(378)	(23)
Lapse of statute of limitations	(117)	(8,140)	(489)
Settlements with tax authorities			(1,277)
Ending balance	13,622	14,841	20,430
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	$ (108)	$ (201)	$ (196)