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Cash Equivalents and Short-Term Investments | 6 Months Ended
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Jul. 31, 2023
Cash, Cash Equivalents, and Short-Term Investments [Abstract] |
Cash Equivalents and Short-Term Investments | Cash Equivalents and Short-Term Investments The following tables summarize the Company’s cash equivalents and short-term investments (in thousands):
| As of July 31, 2023
Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Cash Equivalents |  |  |  |  |  |  |
Money market funds | $ | 12,667 |  |  | $ | — |  |  | $ | — |  |  | $ | 12,667 |
Total cash equivalents | 12,667 |  |  | — |  |  | — |  |  | 12,667 |
Short-Term Investments |  |  |  |  |  |  |
U.S. government treasury securities | 96,024 |  |  | 1 |  |  | (245) |  |  | 95,780 |
U.S. government agency securities | 11,928 |  |  | — |  |  | (46) |  |  | 11,882 |
Commercial paper | 9,941 |  |  | — |  |  | — |  |  | 9,941 |
Corporate debt securities | 3,957 |  |  | — |  |  | (4) |  |  | 3,953 |
Asset-backed securities | 2,812 |  |  | — |  |  | (7) |  |  | 2,805 |
Total short-term investments | 124,662 |  |  | 1 |  |  | (302) |  |  | 124,361 |
Total | $ | 137,329 |  |  | $ | 1 |  |  | $ | (302) |  |  | $ | 137,028 |
| As of January 31, 2023
Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Cash Equivalents |  |  |  |  |  |  |
Money market funds | $ | 29,239 |  |  | $ | — |  |  | $ | — |  |  | $ | 29,239 |
Corporate debt securities | $ | 1,122 |  |  | $ | — |  |  | $ | — |  |  | 1,122 |
Total cash equivalents | 30,361 |  |  | — |  |  | — |  |  | 30,361 |
Short-Term Investments |  |  |  |  |  |  |
U.S. government treasury securities | 71,981 |  |  | 1 |  |  | (729) |  |  | 71,253 |
U.S. government agency securities | 7,839 |  |  | 3 |  |  | (1) |  |  | 7,841 |
Commercial paper | 31,500 |  |  | — |  |  | — |  |  | 31,500 |
Corporate debt securities | 11,952 |  |  | — |  |  | (50) |  |  | 11,902 |
Asset-backed securities | 5,391 |  |  | — |  |  | (31) |  |  | 5,360 |
Total short-term investments | 128,663 |  |  | 4 |  |  | (811) |  |  | 127,856 |
Total | $ | 159,024 |  |  | $ | 4 |  |  | $ | (811) |  |  | $ | 158,217 |
During the three and six months ended July 31, 2023 and 2022, the Company did not reclassify any amounts to earnings from accumulated other comprehensive income (loss) related to unrealized gains or losses in other income (expense), net in the condensed consolidated statements of operations. As of July 31, 2023, the Company’s short-term investments consisted of $120.4 million and $4.0 million with a contractual maturity date of less than one year and greater than one year, respectively. As of January 31, 2023, the Company’s short-term investments consisted of $122.0 million and $5.9 million with a contractual maturity of less than one year and greater than one year, respectively. The Company’s gross unrealized losses and fair values for short-term investments that were in an unrealized loss position as of July 31, 2023 and January 31, 2023, aggregated by investment category and the length of time that individual securities have been in a continuous loss position were as follows (in thousands):
| As of July 31, 2023
| Less Than 12 Months |  | 12 Months or Greater |  | Total
| Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value
U.S. government treasury securities | $ | (60) |  |  | $ | 57,460 |  |  | $ | (185) |  |  | $ | 25,750 |  |  | $ | (245) |  |  | $ | 83,210 |
U.S. government agency securities | (46) |  |  | 11,882 |  |  | — |  |  | — |  |  | (46) |  |  | 11,882 |
Corporate debt securities | (3) |  |  | 2,953 |  |  | (1) |  |  | 999 |  |  | (4) |  |  | 3,952 |
Asset-backed securities | (5) |  |  | 1,811 |  |  | (2) |  |  | 994 |  |  | (7) |  |  | 2,805 |
Total | $ | (114) |  |  | $ | 74,106 |  |  | $ | (188) |  |  | $ | 27,743 |  |  | $ | (302) |  |  | $ | 101,849 |
| As of January 31, 2023
| Less Than 12 Months |  | 12 Months or Greater |  | Total
| Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value
U.S. government treasury securities | $ | (729) |  |  | $ | 64,397 |  |  | $ | — |  |  | $ | — |  |  | $ | (729) |  |  | $ | 64,397 |
U.S. government agency securities | (1) |  |  | 1,918 |  |  | — |  |  | — |  |  | (1) |  |  | 1,918 |
Corporate debt securities | (49) |  |  | 8,909 |  |  | (1) |  |  | 1,999 |  |  | (50) |  |  | 10,908 |
Asset-backed securities | (31) |  |  | 5,359 |  |  | — |  |  | — |  |  | (31) |  |  | 5,359 |
Total | $ | (810) |  |  | $ | 80,583 |  |  | $ | (1) |  |  | $ | 1,999 |  |  | $ | (811) |  |  | $ | 82,582 |
As of July 31, 2023, the Company had 30 short-term investments in an unrealized loss position. As of January 31, 2023, the Company had 27 short-term investments in an unrealized loss position. As of July 31, 2023, the Company determined that the declines in the market value of its investment portfolio were not driven by credit related factors. During the three and six months ended July 31, 2023, the Company did not recognize any losses on its short-term investments due to credit related factors.

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- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//320/tableOfContent + Details
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