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Cash Equivalents and Short-Term Investments - Summary of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value (Details) - USD ($) $ in Thousands | Jul. 31, 2023 | Jan. 31, 2023
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Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Short-term investments, less than 12 months, unrealized Losses | $ (114) | $ (810)
Short-term investments, less than 12 months, fair value | 74,106 | 80,583
Short-term investments,12 months or greater, unrealized Losses | (188) | (1)
Short-term investments, 12 months or greater, fair value | 27,743 | 1,999
Short-term investments, unrealized Losses | (302) | (811)
Debt securities, available-for-sale, unrealized loss position, total | 101,849 | 82,582
U.S. government treasury securities |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Short-term investments, less than 12 months, unrealized Losses | (60) | (729)
Short-term investments, less than 12 months, fair value | 57,460 | 64,397
Short-term investments,12 months or greater, unrealized Losses | (185) | 0
Short-term investments, 12 months or greater, fair value | 25,750 | 0
Short-term investments, unrealized Losses | (245) | (729)
Debt securities, available-for-sale, unrealized loss position, total | 83,210 | 64,397
U.S. government agency securities |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Short-term investments, less than 12 months, unrealized Losses | (46) | (1)
Short-term investments, less than 12 months, fair value | 11,882 | 1,918
Short-term investments,12 months or greater, unrealized Losses | 0 | 0
Short-term investments, 12 months or greater, fair value | 0 | 0
Short-term investments, unrealized Losses | (46) | (1)
Debt securities, available-for-sale, unrealized loss position, total | 11,882 | 1,918
Corporate debt securities |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Short-term investments, less than 12 months, unrealized Losses | (3) | (49)
Short-term investments, less than 12 months, fair value | 2,953 | 8,909
Short-term investments,12 months or greater, unrealized Losses | (1) | (1)
Short-term investments, 12 months or greater, fair value | 999 | 1,999
Short-term investments, unrealized Losses | (4) | (50)
Debt securities, available-for-sale, unrealized loss position, total | 3,952 | 10,908
Asset-backed securities |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Short-term investments, less than 12 months, unrealized Losses | (5) | (31)
Short-term investments, less than 12 months, fair value | 1,811 | 5,359
Short-term investments,12 months or greater, unrealized Losses | (2) | 0
Short-term investments, 12 months or greater, fair value | 994 | 0
Short-term investments, unrealized Losses | (7) | (31)
Debt securities, available-for-sale, unrealized loss position, total | $ 2,805 | $ 5,359

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