Income Taxes - Reconciliation of Statutory Federal Income Tax Rate to Effective Income Tax Rate (Details)	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%
Foreign taxes	(11.60%)	(2.00%)	(2.20%)
Non-deductible expenses	(9.50%)	(17.90%)	(2.10%)
Stock-based compensation	(25.00%)	(4.60%)	(10.80%)
Valuation allowance	62.20%	(5.70%)	(12.30%)
Research and development credits	14.70%	18.90%	3.30%
Cross border tax law	(44.60%)	(27.40%)	0.00%
Other, net	(1.60%)	(0.90%)	(0.30%)
Effective income tax rate	5.60%	(18.60%)	(3.40%)