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Cash Equivalents and Short-Term Investments - Schedule of Unrealized Losses Cash Equivalents and Short Term Investment (Details) - USD ($) $ in Thousands | Oct. 31, 2025 | Jan. 31, 2025
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Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 months, carrying value | $ 228,208 | $ 234,818
Less than 12 months, gross unrealized losses | (148) | (362)
12 months or greater, carrying value | 17,493 | 5,988
12 months or greater, gross unrealized losses | (6) | (2)
Fair Value | 245,701 | 240,806
Gross Unrealized Losses | (154) | (364)
U.S. Agency securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 months, carrying value | 13,935 | 48,445
Less than 12 months, gross unrealized losses | (8) | (65)
12 months or greater, carrying value | 2,005 | 0
12 months or greater, gross unrealized losses | (1) | 0
Fair Value | 15,940 | 48,445
Gross Unrealized Losses | (9) | (65)
Commercial paper |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 months, carrying value | 6,624 | 13,430
Less than 12 months, gross unrealized losses | (2) | (11)
12 months or greater, carrying value | 0 | 0
12 months or greater, gross unrealized losses | 0 | 0
Fair Value | 6,624 | 13,430
Gross Unrealized Losses | (2) | (11)
Corporate debt securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 months, carrying value | 61,141 | 72,022
Less than 12 months, gross unrealized losses | (48) | (146)
12 months or greater, carrying value | 3,488 | 5,988
12 months or greater, gross unrealized losses | (2) | (2)
Fair Value | 64,629 | 78,010
Gross Unrealized Losses | (50) | (148)
U.S. Treasury securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 months, carrying value | 146,508 | 100,921
Less than 12 months, gross unrealized losses | (90) | (140)
12 months or greater, carrying value | 12,000 | 0
12 months or greater, gross unrealized losses | (3) | 0
Fair Value | 158,508 | 100,921
Gross Unrealized Losses | $ (93) | $ (140)

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