Convertible Preferred Stock - Schedule of Conversions of Stock (Details) - USD ($)	12 Months Ended		24 Months Ended
	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Mar. 03, 2025	Oct. 17, 2024	Jul. 31, 2024
Class of Stock [Line Items]
Less: Initial carrying value of Series B-2 and B-1 Convertible Preferred Stock	$ 221,983,000	$ 189,545,000	$ 221,983,000			$ 180,076,000
Adjustment to increase carrying value of Series B Convertible Preferred Stock to its redemption value (while outstanding)	125,284,000
Total adjustments to redemption values charged to Stockholder's Equity	32,438,000	96,258,000	128,696,000
Series B-4 Convertible Preferred Stock
Class of Stock [Line Items]
Redemption value of Series B-4 Convertible Preferred Stock at July 31, 2026	223,156,000		$ 223,156,000
Less: Carrying value of combined embedded derivatives at July 31, 2026	1,173,000	$ 14,608,000
Carrying value of Series B-4 Convertible Preferred Stock at July 31, 2026	221,983,000
Series B-2 Convertible Preferred Stock
Class of Stock [Line Items]
Less: Initial carrying value of Series B-2 and B-1 Convertible Preferred Stock					$ 93,478,000
Series B-3 Convertible Preferred Stock
Class of Stock [Line Items]
Less: Initial carrying value of Series B-2 and B-1 Convertible Preferred Stock				$ 3,221,000
Series B-1 Convertible Preferred Stock
Class of Stock [Line Items]
Adjustment to increase carrying value of Series B Convertible Preferred Stock to its redemption value (while outstanding)	$ 3,412,000