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Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares shares in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities (in shares)	18,671	28,234	27,463
Stock options
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities (in shares)	4,356	6,071	9,788
Restricted stock units
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities (in shares)	12,631	21,521	17,190
Performance-based restricted stock units
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities (in shares)	991	0	0
Vesting percentage	100.00%
Performance-based restricted stock units \| Minimum
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Vesting percentage	0.00%
Performance-based restricted stock units \| Maximum
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Vesting percentage	200.00%
Shares issuable pursuant to the 2020 Employee Stock Purchase Plan
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities (in shares)	693	642	485