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Cash Equivalents and Short-Term Investments - Summary of Cash Equivalents and Short-term Investments (Details) - USD ($) $ in Thousands | Jul. 31, 2022 | Jan. 31, 2022
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Schedule Of Cash Cash Equivalents And Short Term Investments |  |
Cash equivalents, amortized cost | $ 42,090 | $ 86,505
Cash equivalents, estimate fair value | 42,090 | 86,505
Short-Term Investments |  |
Amortized Cost | 146,810 | 110,462
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (1,043) | (196)
Estimated Fair Value | 145,767 | 110,266
Amortized Cost | 188,900 | 196,967
Estimated Fair Value | 187,857 | 196,771
U.S. government securities |  |
Short-Term Investments |  |
Amortized Cost | 92,755 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (929) |
Estimated Fair Value | 91,826 |
U.S. government treasury securities |  |
Short-Term Investments |  |
Amortized Cost |  | 39,340
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | (129)
Estimated Fair Value |  | 39,211
Corporate debt securities |  |
Short-Term Investments |  |
Amortized Cost | 27,460 | 30,156
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (106) | (66)
Estimated Fair Value | 27,354 | 30,090
Commercial paper |  |
Short-Term Investments |  |
Amortized Cost | 23,647 | 40,966
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | (1)
Estimated Fair Value | 23,647 | 40,965
Asset-backed securities |  |
Short-Term Investments |  |
Amortized Cost | 2,948 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (8) |
Estimated Fair Value | 2,940 |
Money market funds |  |
Schedule Of Cash Cash Equivalents And Short Term Investments |  |
Cash equivalents, amortized cost | 42,090 | 86,505
Cash equivalents, estimate fair value | $ 42,090 | $ 86,505

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