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Fair Value Measurements | 3 Months Ended
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Mar. 31, 2024
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements Fair value is defined as the price that would be received from selling an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. The standard establishes a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used to measure fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The fair value hierarchy is as follows: Level 1 — Quoted prices in active markets for identical assets and liabilities. Level 2 — Quoted prices for identical assets and liabilities in markets that are not active, quoted prices for similar assets and liabilities in active markets or financial instruments for which significant inputs are observable, either directly or indirectly. Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. At March 31, 2024 and December 31, 2023, our financial assets recorded at fair value on a recurring basis consist of cash equivalents and available-for-sale debt securities. The cash equivalents consist of money market funds valued using quoted prices in active markets, which represents Level 1 inputs in the fair value hierarchy. The available-for-sale debt securities are valued using a Monte Carlo simulation, which include inputs that represent Level 3 inputs in the fair value hierarchy. The carrying amounts of accounts receivable, accounts payable and accrued expenses and other current liabilities approximate fair values because of the short-term nature of these items. The following tables summarize our assets and liabilities that are measured at fair value on a recurring basis, by level, within the fair value hierarchy (in thousands):
| As of March 31, 2024
| Level 1 |  | Level 2 |  | Level 3
Available-for-sale debt securities | $ | — |  |  | $ | — |  |  | $ | 1,160 |
Money market funds | 211,755 |  |  | — |  |  | — |
Total assets | $ | 211,755 |  |  | $ | — |  |  | $ | 1,160 |
| As of December 31, 2023
| Level 1 |  | Level 2 |  | Level 3
Available-for-sale debt securities | $ | — |  |  | $ | — |  |  | $ | 1,159 |
Money market funds | 208,970 |  |  | — |  |  | — |
Total assets | $ | 208,970 |  |  | $ | — |  |  | $ | 1,159 |

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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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