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Convertible Preferred Stock - Schedule of Conversions of Stock (Details) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Apr. 30, 2025	Jan. 31, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024	Jul. 31, 2024
Class of Stock [Line Items]
Redemption value of Series B-3 Convertible Preferred Stock at April 30, 2025				$ 199,661,000		$ 180,076,000
Less: Carrying value of combined embedded derivatives at April 30, 2025				29,589,000
Total adjustments to redemption values charged to Stockholder's Equity:	$ 44,534,000	$ 32,251,000	$ 3,835,000	76,785,000	$ 11,992,000
Series B-2 Convertible Preferred Stock
Class of Stock [Line Items]
Redemption value of Series B-3 Convertible Preferred Stock at April 30, 2025				199,661,000
Carrying value of Series B-3 Convertible Preferred Stock at April 30, 2025				170,072,000
Less: Initial carrying value				93,478,000
Adjustment to increase carrying value of Series Convertible Preferred Stock to its redemption value				73,373,000
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
Series B-3 Fee Paid in Kind
Class of Stock [Line Items]
Less: Initial carrying value				$ 3,221,000

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