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Cash Equivalents and Short-Term Investments | 6 Months Ended
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Jul. 31, 2022
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, 2022
Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Cash Equivalents |  |  |  |  |  |  |
Money market funds | $ | 42,090 |  |  | $ | — |  |  | $ | — |  |  | $ | 42,090 |
Total cash equivalents | 42,090 |  |  | — |  |  | — |  |  | 42,090 |
Short-Term Investments |  |  |  |  |  |  |
U.S. government securities | 92,755 |  |  | — |  |  | (929) |  |  | 91,826 |
Corporate debt securities | 27,460 |  |  | — |  |  | (106) |  |  | 27,354 |
Commercial paper | 23,647 |  |  | — |  |  | — |  |  | 23,647 |
Asset-backed securities | 2,948 |  |  | — |  |  | (8) |  |  | 2,940 |
Total short-term investments | 146,810 |  |  | — |  |  | (1,043) |  |  | 145,767 |
Total | $ | 188,900 |  |  | $ | — |  |  | $ | (1,043) |  |  | $ | 187,857 |
| As of January 31, 2022
Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Cash Equivalents |  |  |  |  |  |  |
Money market funds | $ | 86,505 |  |  | $ | — |  |  | $ | — |  |  | $ | 86,505 |
Total cash equivalents | 86,505 |  |  | — |  |  | — |  |  | 86,505 |
Short-Term Investments |  |  |  |  |  |  |
U.S. government treasury securities | 39,340 |  |  | — |  |  | (129) |  |  | 39,211 |
Corporate debt securities | 30,156 |  |  | — |  |  | (66) |  |  | 30,090 |
Commercial paper | 40,966 |  |  | — |  |  | (1) |  |  | 40,965 |
Total short-term investments | 110,462 |  |  | — |  |  | (196) |  |  | 110,266 |
Total | $ | 196,967 |  |  | $ | — |  |  | $ | (196) |  |  | $ | 196,771 |
During the three and six months ended July 31, 2022 and 2021, 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, 2022, the Company’s short-term investments consisted of $118.5 million and $27.3 million with a contractual maturity date of less than one year and greater than one year, respectively. As of January 31, 2022, the Company’s short-term investments consisted of $108.3 million and $2.0 million with a contractual maturity of less than one year and greater than one year, respectively. As of July 31, 2022, the Company had 35 short-term investments in an unrealized loss position. These short-term investments had an estimated fair value of $122.1 million and were not in a continuous unrealized loss position for more than twelve months. As of January 31, 2022, the Company had 25 short-term investments in an unrealized loss position. These short-term investments had an estimated fair value of $71.8 million and were not in a continuous unrealized loss position for more than twelve months. During the three and six months ended July 31, 2022, the Company had no other-than-temporary impairments of short-term investments.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
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