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v3.25.2

Fair Value Measurements - Additional Information (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 31, 2025 | Jul. 31, 2025 | Jan. 31, 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |
Transfers into level 1 to level 2, assets | $ 0 | $ 0 |
Transfers into level 2 to level 1, assets | 0 | 0 |
Transfers into level 1 to level 2, liabilities | 0 | 0 |
Transfers into level 2 to level 1, liabilities | 0 | 0 |
Transfers into level 3, assets |  | 0 |
Transfers out of level 3, assets |  | 0 |
Transfers into level 3, liabilities |  | 0 |
Transfers out of level 3, liabilities |  | 0 |
Investment in venture capital funds |  | $ 1,900,000 | $ 14,100,000
Non-cash impairment charge | $ 400,000 |  |
Short-term investment |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |
Fair value, investment |  | The fair value of the short-term investment, which is a guaranteed investment certificate, is based on its purchase price plus one half of one percent calculated annually. |

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