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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Jan. 31, 2025 | Jan. 31, 2026 | Jan. 31, 2024 | Jan. 31, 2023
Income Taxes [Line Items] |  |  |  |
Decrease in valuation allowance amount | $ 80,200 |  |  |
Unrecognized Tax Benefits | $ 8,052 | $ 14,431 | $ 6,661 | $ 5,435
U.S. federal |  |  |  |
Income Taxes [Line Items] |  |  |  |
Operating loss carryforwards |  | 181,700 |  |
U.S. federal | Research Tax Credit Carryforward |  |  |  |
Income Taxes [Line Items] |  |  |  |
Tax credits |  | 27,200 |  |
State and Local Jurisdiction |  |  |  |
Income Taxes [Line Items] |  |  |  |
Operating loss carryforwards |  | 202,300 |  |
California | Research Tax Credit Carryforward |  |  |  |
Income Taxes [Line Items] |  |  |  |
Tax credits |  | $ 16,000 |  |

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
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