Income Taxes - Schedule of Unrecognized Tax Benefit Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 12,037
Unrecognized Tax Benefits, Interest on Income Taxes Expense	1,013	$ 556	$ 674
Unrecognized Tax Benefits:
Beginning balance	20,430	18,362	15,294
Additions based on tax positions related to the current year	2,518	2,467	2,500
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	612	1,586	1,124
Reductions for tax positions of prior years	(378)	(23)	(62)
Lapse of statute of limitations	(8,140)	(489)	(663)
Settlements with tax authorities		(1,277)	(118)
Ending balance	14,841	20,430	18,362
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	$ 201	$ 196	$ 287