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Fair Value Measurements | 3 Months Ended
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Apr. 30, 2024
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements The Company measures its financial assets and liabilities at fair value each reporting period using a fair value hierarchy that prioritizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. A financial instrument’s classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs may be used to measure fair value, as follows: Level 1—Valuations based on observable inputs that reflect quoted prices for identical assets or liabilities in active markets. Level 2—Valuations based on inputs that are directly or indirectly observable in the marketplace. Level 3—Valuations based on unobservable inputs that are supported by little or no market activity. The following tables present information about the Company’s financial assets that are required to be measured or disclosed at fair value using the above input categories:
| As of April 30, 2024
| Level 1 |  | Level 2 |  | Level 3 |  | Total
| (in thousands)
Money market funds | $ | 325,781 |  |  | $ | — |  |  | $ | — |  |  | $ | 325,781 |
U.S. Treasury securities | — |  |  | 57,681 |  |  | — |  |  | 57,681 |
Commercial paper | — |  |  | 22,582 |  |  | — |  |  | 22,582 |
Corporate debt securities | — |  |  | 108,484 |  |  | — |  |  | 108,484 |
U.S. Government agency securities | — |  |  | 27,973 |  |  | — |  |  | 27,973 |
Total | $ | 325,781 |  |  | $ | 216,720 |  |  | $ | — |  |  | $ | 542,501 |
Included in cash equivalents |  |  |  |  |  |  | $ | 332,259 |
Included in investments |  |  |  |  |  |  | $ | 210,242 |
| As of January 31, 2024
| Level 1 |  | Level 2 |  | Level 3 |  | Total
| (in thousands)
Money market funds | $ | 305,283 |  |  | $ | — |  |  | $ | — |  |  | $ | 305,283 |
U.S. Treasury securities | — |  |  | 51,034 |  |  | — |  |  | 51,034 |
Commercial paper | — |  |  | 3,880 |  |  | — |  |  | 3,880 |
Corporate debt securities | — |  |  | 131,259 |  |  | — |  |  | 131,259 |
U.S. Government agency securities | — |  |  | 23,997 |  |  | — |  |  | 23,997 |
Total | $ | 305,283 |  |  | $ | 210,170 |  |  | $ | — |  |  | $ | 515,453 |
Included in cash equivalents |  |  |  |  |  |  | $ | 307,275 |
Included in investments |  |  |  |  |  |  | $ | 208,178 |
The Company’s assets that are measured by management at fair value on a recurring basis are generally classified within Level 1 or Level 2 of the fair value hierarchy. The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. As of April 30, 2024 and January 31, 2024, the Company’s Level 2 securities are measured at fair value and classified within Level 2 in the fair value hierarchy because the Company uses quoted market prices for similar instruments or nonbinding market prices that are corroborated by observable market data or alternative pricing sources and models using market observable inputs to determine fair value. The carrying amounts of certain financial instruments, including cash held in banks, accounts receivable, and accounts payable approximate fair value due to their short-term maturities and are excluded from the fair value table above. Convertible Senior Notes As of April 30, 2024, the estimated fair value of the Company’s outstanding 1.25% Convertible Senior Notes due 2025 (the “2025 Notes”) was approximately $54.4 million and the estimated fair value of the Company’s 1.50% Convertible Senior Notes due 2028 (the “2028 Notes” and, together with the 2025 Notes, the “Notes”) was approximately $402.3 million. The fair values were determined based on the quoted price for the Notes in an inactive market on the last trading day of the reporting period and are considered as Level 2 in the fair value hierarchy.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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