Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (34,889)	$ (31,198)	$ (72,821)	$ (67,100)
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on investments	407	(548)	18	(438)
Other comprehensive income (loss), net of tax	407	(548)	18	(438)
Comprehensive loss	$ (34,482)	$ (31,746)	$ (72,803)	$ (67,538)