Stock-Based Compensation Expense and Shareholders' Equity (Details 3) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Number of RSUs Outstanding (in shares)
Balance at beginning of period (in shares)	3,414,706
Balance at end of period (in shares)	3,202,066	3,414,706
Aggregate Intrinsic Value
Balance at beginning of period	$ 289,635	$ 216,478	$ 275,900
released	168,144	97,324	118,669
Balance at end of period	480,534	$ 289,635	$ 216,478
Aggregate Intrinsic Value	$ 480,534
Restricted stock units RSUs
Number of RSUs Outstanding (in shares)
Balance at beginning of period (in shares)	3,414,706	2,785,353	2,394,968
Granted (in shares)	1,639,400	2,287,778	1,942,391
Released (in shares)	(1,569,451)	(1,391,162)	(1,202,125)
Canceled (in shares)	(282,589)	(267,263)	(349,881)
Balance at end of period (in shares)	3,202,066	3,414,706	2,785,353
Expected to vest as of July 31, 2020 (in shares)	3,202,066
Weighted Average Grant Date Fair Value (in dollars per share)
Balance at beginning of period (in USD per share)	$ 85.68	$ 110.47	$ 107.15
Granted (in USD per share)	93.63	66.36	112.83
Released (in USD per share)	91.48	100.92	107.29
Canceled (in USD per share)	89.22	99.31	111.80
Balance at end of period (in USD per share)	86.60	$ 85.68	$ 110.47
Expected to vest as of July 31, 2020 (in USD per share)	$ 86.60