Income Taxes - Reconciliation of Statutory Federal Income Tax Rate to Effective Income Tax Rate (Details)	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%
Foreign taxes	(2.20%)	(3.70%)	0.20%
Non-deductible expenses	(2.10%)	(2.70%)	(1.10%)
Stock-based compensation	(10.80%)	27.10%	(14.00%)
Valuation allowance	(12.30%)	(48.20%)	(10.10%)
Research and development credits	3.30%	3.80%	6.70%
Other, net	(0.30%)	(0.20%)	(0.30%)
Effective income tax rate	(3.40%)	(2.90%)	2.40%