Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 74,783	$ 44,166
Less: Accumulated depreciation and amortization	(33,737)	(24,401)
Total property and equipment, net	$ 41,046	19,765
Hosting equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Property and equipment, gross	$ 56,910	30,743
Computers and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,837	2,335
Purchased software
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Property and equipment, gross	$ 1,311	1,324
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Property and equipment, gross	$ 9,904	6,163
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years
Property and equipment, gross	$ 1,566	1,478
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,255	$ 2,123
Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Minimum | Computers and equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years
Maximum | Computers and equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years