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Income Taxes (Details 3) - USD ($)
$ in Thousands
Jul. 31, 2025
Jul. 31, 2024
Tax effects of temporary differences    
Accruals and reserves $ 26,083 $ 27,636
Stock-based compensation 10,174 9,077
Deferred revenue 1,284 711
Capitalized research and development 168,266 110,502
Property and equipment 398 0
Lease liabilities 8,612 9,908
Convertible debt 12,086 919
Net operating loss carryforwards 19,385 49,864
Tax credits 158,257 145,934
Total deferred tax assets 404,545 354,551
Less valuation allowance 66,295 65,791
Net deferred tax assets 338,250 288,760
Intangible assets 16,859 12,682
Operating lease assets 7,782 9,130
Property and equipment 0 184
Unremitted foreign earnings 1,759 851
Capitalized commissions 18,831 15,022
Total deferred tax liabilities 45,231 37,869
Total net deferred tax assets $ 293,019 $ 250,891