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Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefit (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2026 | Jan. 31, 2025 | Jan. 31, 2024
Income Tax Disclosure [Abstract] |  |  |
Unrecognized tax benefits—beginning of period | $ 132,574 | $ 118,981 | $ 103,636
Reductions for tax positions related to prior year | (69,833) | (49) |
Additions for tax positions related to prior year |  |  | 1,733
Additions for tax positions related to current year | 3,764 | 13,642 | 13,612
Unrecognized tax benefits—end of period | $ 66,505 | $ 132,574 | $ 118,981

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