Balance Sheet Components - Accrued expenses and other current liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Jan. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued expenses	$ 36,375	$ 41,773
Accrued bonuses	24,978	31,212
Accrued sales commissions	32,641	18,859
Accrued payroll-related expenses, taxes, and benefits	35,707	20,197
Operating lease liabilities	10,105	10,461
Other	493	432
Total accrued expenses and other current liabilities	$ 140,299	$ 122,934