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Cash, Cash Equivalents and Short-Term Investments | 3 Months Ended
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Apr. 30, 2023
Cash and Cash Equivalents [Abstract] |
Cash, Cash Equivalents and Short-Term Investments | 4. Cash, Cash Equivalents and Short-Term Investments The following table summarizes the Company’s cash, cash equivalents and short-term investments by category (in thousands):
|  |  |  |  | As of April 30, 2023 |  |
|  |  |  |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  |
Cash and cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  | $ | 225,794 |  |  | $ | — |  |  | $ | — |  |  | $ | 225,794 |  |  |
Money market funds |  |  |  |  | 86,665 |  |  | — |  |  | — |  |  | 86,665 |  |  |
Commercial paper |  |  |  |  | 3,476 |  |  | — |  |  | (2) |  |  | 3,474 |  |  |
Total cash and cash equivalents |  |  |  |  | $ | 315,935 |  |  | $ | — |  |  | $ | (2) |  |  | $ | 315,933 |  |  |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper |  |  |  |  | 107,285 |  |  | — |  |  | (147) |  |  | 107,138 |  |  |
Corporate debt securities |  |  |  |  | 122,903 |  |  | 92 |  |  | (583) |  |  | 122,412 |  |  |
Municipal bonds |  |  |  |  | 1,995 |  |  | — |  |  | (9) |  |  | 1,986 |  |  |
Foreign government bonds |  |  |  |  | 2,222 |  |  | — |  |  | (30) |  |  | 2,192 |  |  |
U.S. Agency securities |  |  |  |  | 72,842 |  |  | 1 |  |  | (374) |  |  | 72,469 |  |  |
U.S. Treasury securities |  |  |  |  | 317,815 |  |  | — |  |  | (2,306) |  |  | 315,509 |  |  |
Total short-term investments |  |  |  |  | $ | 625,062 |  |  | $ | 93 |  |  | $ | (3,449) |  |  | $ | 621,706 |  |  |
|  |  |  |  | As of January 31, 2023 |  |
|  |  |  |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  |
Cash and cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  | $ | 232,332 |  |  | $ | — |  |  | $ | — |  |  | $ | 232,332 |  |  |
Money market funds |  |  |  |  | 60,073 |  |  | — |  |  | — |  |  | 60,073 |  |  |
U.S. Agency securities |  |  |  |  | 2,997 |  |  | — |  |  | — |  |  | 2,997 |  |  |
Total cash and cash equivalents |  |  |  |  | $ | 295,402 |  |  | $ | — |  |  | $ | — |  |  | $ | 295,402 |  |  |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper |  |  |  |  | 88,703 |  |  | 18 |  |  | (112) |  |  | 88,609 |  |  |
Corporate debt securities |  |  |  |  | 95,805 |  |  | 33 |  |  | (572) |  |  | 95,266 |  |  |
Municipal bonds |  |  |  |  | 1,989 |  |  | — |  |  | (19) |  |  | 1,970 |  |  |
Foreign government bonds |  |  |  |  | 2,211 |  |  | — |  |  | (41) |  |  | 2,170 |  |  |
U.S. Agency securities |  |  |  |  | 74,158 |  |  | 2 |  |  | (435) |  |  | 73,725 |  |  |
U.S. Treasury securities |  |  |  |  | 383,238 |  |  | — |  |  | (3,729) |  |  | 379,509 |  |  |
Total short-term investments |  |  |  |  | $ | 646,104 |  |  | $ | 53 |  |  | $ | (4,908) |  |  | $ | 641,249 |  |  |
The Company uses the specific-identification method to determine an y realized gains or losses from the sale of the Company’s short-term investments classified as available-for-sale. For the three months ended April 30, 2023 and 2022, the Company did not have any material realized gains or losses as a result of maturities or sale of short-term investments. During the three months ended April 30, 2023, the Company recorded $7.3 million of interest income on cash equivalents and short-term investments which includes $3.6 million of net amortization of premiums or discounts on short-term investments during the three months ended April 30, 2023. During the three months ended April 30, 2022, the Company recorded $0.5 million of interest income on cash equivalents and short-term investments. The Company did not record any amortization of premiums or discounts during the three months ended April 30, 2022. As of April 30, 2023, the Company had $1.0 million of corporate debt securities that have been in a continuous unrealized loss position for more than 12 months with an immaterial amount of gross unrealized loss. As of January 31, 2023, the Company did not have any cash equivalents and short-term investments that have been in a continuous unrealized gain or loss position for more than 12 months. The following table summarizes unrealized losses on the Company’s cash equivalents and short-term investments by category that have been in a continuous unrealized loss position for less than 12 months as of the periods presented (in thousands):
| Carrying Value |  | Gross Unrealized Losses |
April 30, 2023 |  |  |  |
U.S. Agency securities | $ | 69,471 |  |  | $ | (374) |  |
Commercial paper | 110,613 |  |  | (149) |  |
Corporate debt securities | 99,431 |  |  | (565) |  |
Municipal bonds | 1,986 |  |  | (9) |  |
Foreign government bonds | 2,192 |  |  | (30) |  |
U.S. Treasury securities | 299,511 |  |  | (2,306) |  |
Total cash equivalents and short-term investments | $ | 583,204 |  |  | $ | (3,433) |  |
| Carrying Value |  | Gross Unrealized Losses |
January 31, 2023 |  |  |  |
U.S. Agency securities | $ | 73,724 |  |  | $ | (435) |  |
Commercial paper | 45,015 |  |  | (112) |  |
Corporate debt securities | 75,203 |  |  | (572) |  |
Municipal bonds | 1,970 |  |  | (19) |  |
Foreign government bonds | 2,170 |  |  | (41) |  |
U.S. Treasury securities | 379,509 |  |  | (3,729) |  |
Total cash equivalents and short-term investments | $ | 577,591 |  |  | $ | (4,908) |  |
The following table classifies the Company’s short-term investments by contractual maturities (in thousands):
|  |  |  |  | April 30, 2023 |  | January 31, 2023 |  |
|  |  |  |  | Amortized cost |  | Fair Value |  | Amortized cost |  | Fair Value |  |
Due within 1 year |  |  |  |  | $ | 504,757 |  |  | $ | 501,963 |  |  | $ | 480,943 |  |  | $ | 477,520 |  |  |
Due between 1 year to 2 years |  |  |  |  | 120,305 |  |  | 119,743 |  |  | 165,161 |  |  | 163,729 |  |  |
Total |  |  |  |  | $ | 625,062 |  |  | $ | 621,706 |  |  | $ | 646,104 |  |  | $ | 641,249 |  |  |
All available-for-sale securities have been classified as current, based on management’s ability to use the funds in current operations.

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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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