Stockholder's Equity - Stock Options Outstanding and Exercisable (Details)	12 Months Ended
	Jul. 31, 2023 $ / shares shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number Outstanding, (in shares) | shares	23,745,000
Weighted Average Remaining Contractual Life	5 years 4 months 9 days
Weighted- Average Exercise Price, Options Outstanding (in dollars per share)	$ 17.69
Number Exercisable, (in shares) | shares	17,974,000
Weighted-Average Exercise Price, Options Exercisable (in dollars per share)	$ 15.02
$17.47 - $18.23
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price lower range	4.37
Exercise price upper range	$ 4.56
Number Outstanding, (in shares) | shares	2,597,000
Weighted Average Remaining Contractual Life	1 year 7 months 28 days
Weighted- Average Exercise Price, Options Outstanding (in dollars per share)	$ 4.47
Number Exercisable, (in shares) | shares	2,597,000
Weighted-Average Exercise Price, Options Exercisable (in dollars per share)	$ 4.47
$18.61 - $31.24
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price lower range	4.65
Exercise price upper range	$ 8.70
Number Outstanding, (in shares) | shares	3,014,000
Weighted Average Remaining Contractual Life	3 years 3 months 25 days
Weighted- Average Exercise Price, Options Outstanding (in dollars per share)	$ 6.98
Number Exercisable, (in shares) | shares	3,014,000
Weighted-Average Exercise Price, Options Exercisable (in dollars per share)	$ 6.98
$33.74 - $83.27
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price lower range	9.08
Exercise price upper range	$ 21.26
Number Outstanding, (in shares) | shares	10,821,000
Weighted Average Remaining Contractual Life	5 years 7 months 13 days
Weighted- Average Exercise Price, Options Outstanding (in dollars per share)	$ 15.91
Number Exercisable, (in shares) | shares	8,636,000
Weighted-Average Exercise Price, Options Exercisable (in dollars per share)	$ 15.04
$85.04 - $145.62
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price lower range	22.15
Exercise price upper range	$ 36.41
Number Outstanding, (in shares) | shares	7,313,000
Weighted Average Remaining Contractual Life	7 years 1 month 17 days
Weighted- Average Exercise Price, Options Outstanding (in dollars per share)	$ 29.42
Number Exercisable, (in shares) | shares	3,727,000
Weighted-Average Exercise Price, Options Exercisable (in dollars per share)	$ 28.85