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Summary of Significant Accounting Policies - Leases (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2024 | Jan. 31, 2026 | Jan. 31, 2025
Accounting Policies [Abstract] |  |  |
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] |  | Accrued and other current liabilities | Accrued and other current liabilities
Impairment of operating lease right-of-use assets | $ 2.7 |  |

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