Income Taxes - Schedule of Effective Income Tax Rate Reconciliation Previous Year (Details)	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Percent
U.S. statutory rate	21.00%	21.00%	21.00%
State taxes	1.80%	4.00%	2.40%
Foreign tax rate differential		0.50%	37.90%
Foreign-derived intangible income deduction		(3.80%)	(11.70%)
Stock-based compensation		7.90%	81.80%
Change in valuation allowance		(331.70%)	(102.50%)
Dual jurisdiction deferred taxes	1.90%	(2.90%)	36.00%
Research and development credits	(16.10%)	(17.30%)	(46.00%)
Other deferred adjustment		(10.70%)	(1.20%)
Other		2.30%	3.30%
Effective tax rate	11.00%	(330.70%)	21.00%