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Fair Value of Financial Instruments | 3 Months Ended
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Mar. 31, 2024
Fair Value Disclosures [Abstract] |
Fair Value of Financial Instruments | Fair Value of Financial Instruments The Company’s financial instruments consist primarily of cash, restricted cash and cash equivalents, marketable securities, accounts receivable and accounts payable. The carrying values of cash, restricted cash and cash equivalents, accounts receivable and accounts payable approximate their respective fair values due to the short-term nature of these instruments. Cash equivalents include amounts held in money market accounts that are measured at fair value using observable market prices. Marketable securities include debt securities that are measured at fair value using observable inputs. The Company uses a three-tier fair value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value: Level 1. Quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2. Significant other inputs that are directly or indirectly observable in the marketplace. Level 3. Significant unobservable inputs which are supported by little or no market activity. The Company evaluates its financial assets and liabilities subject to fair value measurements on a recurring basis to determine the appropriate level in which to classify them for each reporting period. The following tables summarize the Company’s financial assets measured at fair value as of March 31, 2024 and December 31, 2023 and indicate the fair value hierarchy of the valuation:
|  |  |  | Fair Value at Reporting Date Using
(in thousands) |  | March 31, 2024 |  | Level 1 |  | Level 2 |  | Level 3
Assets: |  |  |  |  |  |  |  |
Cash equivalents(1) |  | $ | 37,235 |  |  | $ | 37,235 |  |  | $ | — |  |  | $ | — |
Marketable securities: |  |  |  |  |  |  |  |
Corporate bonds |  | 11,656 |  |  | — |  |  | 11,656 |  |  | — |
Commercial paper |  | 6,978 |  |  | — |  |  | 6,978 |  |  | — |
U.S. Treasury debt securities |  | 22,325 |  |  | 22,325 |  |  | — |  |  | — |
International debt securities |  | 2,166 |  |  | — |  |  | 2,166 |  |  | — |
Total marketable securities |  | 43,125 |  |  | 22,325 |  |  | 20,800 |  |  | — |
Total Assets |  | $ | 80,360 |  |  | $ | 59,560 |  |  | $ | 20,800 |  |  | $ | — |
(1) Includes insured cash sweep account, cash sweep account, money market account and money market funds that have investments primarily in U.S. Government Agency debt, U.S. Treasury debt, U.S. Treasury Repurchase Agreements, U.S. Government Agency Repurchase Agreements, and corporate bonds that have a maturity of three months or less from the original acquisition date.
|  |  |  | Fair Value at Reporting Date Using
(in thousands) |  | December 31, 2023 |  | Level 1 |  | Level 2 |  | Level 3
Assets: |  |  |  |  |  |  |  |
Cash equivalents(1) |  | $ | 34,463 |  |  | $ | 34,463 |  |  | $ | — |  |  | $ | — |
Marketable securities: |  |  |  |  |  |  |  |
Corporate bonds |  | 16,206 |  |  | — |  |  | 16,206 |  |  | — |
Commercial paper |  | 7,279 |  |  | — |  |  | 7,279 |  |  | — |
U.S. government-sponsored enterprise securities |  | 3,500 |  |  | — |  |  | 3,500 |  |  | — |
U.S. Treasury debt securities |  | 22,067 |  |  | 22,067 |  |  | — |  |  | — |
International debt securities |  | 2,144 |  |  | — |  |  | 2,144 |  |  | — |
Total marketable securities |  | 51,196 |  |  | 22,067 |  |  | 29,129 |  |  | — |
Total Assets |  | $ | 85,659 |  |  | $ | 56,530 |  |  | $ | 29,129 |  |  | $ | — |
(1) Includes insured cash sweep account, cash sweep account, money market account and money market funds that have investments primarily in U.S. Government Agency debt, U.S. Treasury debt, U.S. Treasury Repurchase Agreements, U.S. Government Agency Repurchase Agreements and corporate bonds that have a maturity of three months or less from the original acquisition date.

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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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