Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2025	Apr. 30, 2024
Income Statement [Abstract]
Revenue	$ 85,872	$ 54,473
Cost of revenue	34,336	21,313
Gross profit	51,536	33,160
Operating expenses:
Research and development	58,819	54,137
Selling, general and administrative	18,575	18,468
Total operating expenses	77,394	72,605
Loss from operations	(25,858)	(39,445)
Other income, net	2,175	2,271
Loss before income taxes	(23,683)	(37,174)
Provision for income taxes	645	758
Net loss	$ (24,328)	$ (37,932)
Net loss per share attributable to ordinary shareholders:
Basic	$ (0.58)	$ (0.93)
Diluted	$ (0.58)	$ (0.93)
Weighted-average shares used to compute net loss per share attributable to ordinary shareholders:
Basic	42,219,972	40,774,991
Diluted	42,219,972	40,774,991