Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Effective Income Tax Reconciliation
Statutory federal income tax	$ (48,240)	$ (21,899)	$ (5,109)
State taxes, net of federal benefit	(5,613)	(4,173)	(1,179)
Stock-based compensation	2,912	(3,247)	(2,971)
Non-deductible officers' compensation	4,484	3,682	3,634
Foreign income taxed at different rates	(365)	(854)	(235)
Research tax credits	(6,820)	(5,377)	(4,905)
Base erosion and anti-abuse tax	349	(7,702)	11,381
Tax status change of certain foreign subsidiaries	1,201	(1,830)	0
Non-deductible acquisition costs	744	0	0
Permanent differences and others	476	495	829
Change in valuation allowance	1,588	3,131	1,422
Total provision for (benefit from) income taxes	$ (49,284)	$ (37,774)	$ 2,867

Effective Income Tax Rate Reconciliation, Re-Measurement Of US Deferred Taxes, Amount

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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