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Description of Business and Basis of Presentation (Details) $ in Thousands | Jul. 28, 2025 | Jan. 31, 2026 USD ($) | Jan. 31, 2025 USD ($) | Jan. 31, 2024 USD ($) | Jan. 31, 2023 USD ($)
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |  |
Accumulated deficit |  | $ (2,111,635) | $ (1,891,438) |  |
Cash, cash equivalents, and restricted cash |  | $ 141,964 | $ 224,971 | $ 357,810 | $ 294,562
Stock split ratio | 0.05 |  |  |  |

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