Convertible Preferred Stock - Schedule of Conversions of Stock (Details) - USD ($)	3 Months Ended			6 Months Ended		12 Months Ended
	Jan. 31, 2025	Oct. 31, 2024	Jan. 31, 2024	Jan. 31, 2025	Jan. 31, 2024	Jul. 31, 2024
Class of Stock [Line Items]
Redemption value of Series B-2 Convertible Preferred Stock at January 31, 2025				$ 192,051,000		$ 180,076,000
Less: Carrying value of combined embedded derivatives at January 31, 2025				69,734,000
Total adjustments to redemption values charged to Stockholder's Equity:	$ (26,383,000)	$ 58,634,000	$ 6,334,000	32,251,000	$ 8,157,000
Series B-2 Convertible Preferred Stock
Class of Stock [Line Items]
Redemption value of Series B-2 Convertible Preferred Stock at January 31, 2025				192,051,000
Carrying value of Series B-2 Convertible Preferred Stock at January 31, 2025				122,317,000
Less: Initial carrying value of Series B-2 Convertible Preferred Stock at October 17, 2024				93,478,000
Adjustment to increase carrying value of Series Convertible Preferred Stock to its redemption value				28,839,000
Series B-1 Convertible Preferred Stock
Class of Stock [Line Items]
Adjustment to increase carrying value of Series Convertible Preferred Stock to its redemption value				$ 3,412,000