Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Income Statement [Abstract]
Revenue	$ 226,474	$ 337,606	$ 331,856
Cost of revenue	89,657	128,672	123,724
Gross profit	136,817	208,934	208,132
Operating expenses:
Research and development	215,052	204,946	167,337
Selling, general and administrative	76,325	78,244	70,438
Total operating expenses	291,377	283,190	237,775
Loss from operations	(154,560)	(74,256)	(29,643)
Other income, net	6,030	3,318	1,002
Loss before income taxes	(148,530)	(70,938)	(28,641)
Provision (benefit) for income taxes	20,887	(5,552)	(2,230)
Net loss	$ (169,417)	$ (65,386)	$ (26,411)
Net loss per share attributable to ordinary shareholders:
Basic	$ (4.25)	$ (1.7)	$ (0.72)
Diluted	$ (4.25)	$ (1.7)	$ (0.72)
Weighted-average shares used to compute net loss per share attributable to ordinary shareholders:
Basic	39,878,872	38,363,638	36,577,120
Diluted	39,878,872	38,363,638	36,577,120

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Name:	us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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