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Fair Value of Financial Instruments (Tables) | 6 Months Ended
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Jul. 31, 2022
Fair Value Disclosures [Abstract] |
Summary of Amortized Cost, Unrealized Gain (Loss) and Estimated Fair Value of Cash Equivalents and Short-term Investments | The amortized cost, unrealized gain (loss) and estimated fair value of marketable securities were as follows (in thousands):
|  | July 31, 2022 |
|  | Amortized Cost |  |  | Unrealized Gain |  |  | Unrealized Loss |  |  | Estimated Fair Value |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 4,994 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,994 |
Commercial paper |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Money market funds |  |  | 185,970 |  |  |  | — |  |  |  | — |  |  |  | 185,970 |
Total cash equivalents |  | $ | 190,964 |  |  | $ | — |  |  | $ | — |  |  | $ | 190,964 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 42,829 |  |  | $ | — |  |  | $ | (82 | ) |  | $ | 42,747 |
Commercial paper |  |  | 1,998 |  |  |  | — |  |  |  | — |  |  |  | 1,998 |
Total short-term investments |  | $ | 44,827 |  |  | $ | — |  |  | $ | (82 | ) |  | $ | 44,745 |
Total cash equivalents and short-term investments |  | $ | 235,791 |  |  | $ | — |  |  | $ | (82 | ) |  | $ | 235,709 |
|  | January 31, 2022 |
|  | Amortized Cost |  |  | Unrealized Gain |  |  | Unrealized Loss |  |  | Estimated Fair Value |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 202,446 |  |  | $ | — |  |  | $ | — |  |  | $ | 202,446 |
Total cash equivalents |  | $ | 202,446 |  |  | $ | — |  |  | $ | — |  |  | $ | 202,446 |
Summary of Financial Assets Subject to Fair Value | Financial assets subject to the fair value disclosure requirements were as follows (in thousands):
|  | July 31, 2022 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 4,994 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,994 |
Commercial paper |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Money market funds |  |  | 185,970 |  |  |  | — |  |  |  | — |  |  |  | 185,970 |
Total cash equivalents |  | $ | 190,964 |  |  | $ | — |  |  | $ | — |  |  | $ | 190,964 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 42,747 |  |  | $ | — |  |  | $ | — |  |  | $ | 42,747 |
Commercial paper |  |  | — |  |  |  | 1,998 |  |  |  | — |  |  |  | 1,998 |
Total short-term investments |  | $ | 42,747 |  |  | $ | 1,998 |  |  | $ | — |  |  | $ | 44,745 |
Total cash equivalents and short-term investments |  | $ | 233,711 |  |  | $ | 1,998 |  |  | $ | — |  |  | $ | 235,709 |
|  | January 31, 2022 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 202,446 |  |  | $ | — |  |  | $ | — |  |  | $ | 202,446 |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
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