Stock-Based Compensation Expense and Shareholders' Equity (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 24,905	$ 21,130	$ 76,358	$ 68,669
Net impact of deferred stock-based compensation	(124)	(80)	(283)	88
Total stock-based compensation expense	24,781	21,050	76,075	68,757
Total stock-based compensation expense	24,781	21,050	76,075	68,757
Unrecognized Expense	209,810		209,810
Cost of license and subscription revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	1,694	589	4,674	1,458
Cost of maintenance revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	469	274	1,376	1,366
Cost of services revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	4,862	5,721	15,663	17,899
Research and development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	6,500	4,919	19,349	17,765
Sales and marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	4,990	4,731	16,143	14,426
General and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense	6,266	$ 4,816	18,870	$ 15,843
Stock Options
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Unrecognized Expense	$ 958		958
Weighted Average Expected Recognition Period	10 months 24 days
Stock Awards
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Unrecognized Expense	$ 208,852		$ 208,852
Weighted Average Expected Recognition Period	2 years 6 months