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Fair Value of Financial Instruments | 6 Months Ended
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Jul. 31, 2022
Fair Value Disclosures [Abstract] |
Fair Value of Financial Instruments | Note 3. Fair Value of Financial Instruments 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 |
As of July 31, 2022, contractual maturities of marketable securities were all within one year. As of July 31, 2022, we do not consider any portion of the unrealized losses to be credit losses. Fair Value Measurements We measure our financial assets and liabilities at fair value at each reporting period using a fair value hierarchy which requires us to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. We define fair value as the exchange price that would be received from selling an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. 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: • Level 1—Observable inputs are unadjusted quoted prices in active markets for identical assets or liabilities. • Level 2—Observable inputs are quoted prices for similar assets and liabilities in active markets or inputs other than quoted prices which are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments. • Level 3—Unobservable inputs that are supported by little or no market activity and are significant to the fair value of the assets or liabilities. These inputs are based on our own assumptions used to measure assets and liabilities at fair value and require significant management judgment or estimation. Assets and Liabilities Measured at Fair Value on a Recurring Basis 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 |
As of January 31, 2022, we had certificates of deposit for a total of $170 million, with original maturities of more than three months and less than twelve months that are classified as short-term investments in our consolidated balance sheet. We did no t have any certificates of deposit as of July 31, 2022. Fair Value Measurements of Other Financial Instruments In November 2017, we entered into a secured credit agreement (as amended or otherwise modified from time to time, the “November 2017 Facility”). As of July 31, 2022 and January 31, 2022, we had total debt outstanding relating to the November 2017 Facility with a carrying amount of $30.0 million. The estimated fair value of the November 2017 Facility, which we have classified as a Level 2 financial instrument, approximates its carrying value. In January 2021, we issued $345.0 million aggregate principal amount of 0.00% convertible senior notes due January 15, 2026 (the “Notes”). The fair value of the Notes is determined using observable market prices. The fair value of the Notes, which we have classified as a Level 2 instrument, was $420.0 million and $413.1 million as of July 31, 2022 and January 31, 2022, respectively.

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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