Business Combinations - Net Assets Acquired (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 7,479	$ 0
Developed technology, Estimated Useful Life	3 years 6 months
Appsulate, Inc.
Business Acquisition [Line Items]
Cash and cash equivalents	$ 13
Developed technology	7,000
Goodwill	7,281
Total assets acquired	14,294
Deferred tax liability	(1,422)
Total	$ 12,872
Developed technology, Estimated Useful Life	4 years