Net Loss Per Share - Schedule of Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 31, 2024	Apr. 30, 2024	Jul. 31, 2023	Apr. 30, 2023	Jul. 31, 2024	Jul. 31, 2023
Numerator:
Net loss	$ (54,529)	$ (80,593)	$ (37,597)	$ (54,246)	$ (135,122)	$ (91,843)
Denominator:
Weighted-average shares used to compute net loss per share, basic and diluted	73,543,427		70,874,117		73,269,824	70,531,581
Net loss per share, basic and diluted (in dollars per share)	$ (0.74)		$ (0.53)		$ (1.84)	$ (1.30)