Balance Sheet Components - Accrued expenses and other current liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Jan. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued expenses	$ 41,308	$ 41,773
Accrued bonuses	12,647	31,212
Accrued sales commissions	12,595	18,859
Accrued payroll-related expenses, taxes, and benefits	82,611	20,197
Operating lease liabilities	10,440	10,461
Other	733	432
Total accrued expenses and other current liabilities	$ 160,334	$ 122,934