CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (279,696)	$ (268,839)	$ (192,065)
Other comprehensive (loss) income
Unrealized (loss) gain on available-for-sale marketable securities, net of tax	(178)	1,763	(2,229)
Total Comprehensive loss	$ (279,874)	$ (267,076)	$ (194,294)