Net Loss Per Share - Schedule of Potentially Dilutive Securities Excluded from Computation of Diluted Net Loss Per Share (Details) - shares	3 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Stock Options with Service only Conditions
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities excluded from calculation of diluted net loss per share	3,618,879	5,691,898
Unvested RSUs with service-only conditions
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities excluded from calculation of diluted net loss per share	5,100,164	3,790,516
Stock Options with Performance or Market Conditions
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities excluded from calculation of diluted net loss per share	657,797	800,248
Unvested Early Exercise of Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities excluded from calculation of diluted net loss per share	21,170	31,754
Unvested RSAs with service-only conditions
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities excluded from calculation of diluted net loss per share	52,054	0
Acquisition Indemnity Shares Withheld
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities excluded from calculation of diluted net loss per share	0	41,959
Unvested RSUs with performance conditions
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities excluded from calculation of diluted net loss per share	7,009,741	7,925,186