Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2026
Income Tax Contingency [Line Items]
Unrecognized tax benefits that, if recognized, would impact the effective tax rate			$ 0
Income taxes paid	$ 1,200,000	$ 600,000
Federal
Income Tax Contingency [Line Items]
NOLs available to offset future taxable income			1,289,300,000
Federal | Research and Development Tax Credit
Income Tax Contingency [Line Items]
Tax credits available to offset future taxable income			29,000,000.0
State
Income Tax Contingency [Line Items]
NOLs available to offset future taxable income			1,414,700,000
State | Research and Development Tax Credit
Income Tax Contingency [Line Items]
Tax credits available to offset future taxable income			$ 10,700,000