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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2023
Fair Value Disclosures [Abstract] |
Fair Value Measurements | The following table classifies the Company’s assets and liabilities measured at fair value on a recurring basis into the fair value hierarchy as of December 31, 2023 and 2022 (in thousands):
| Fair valued measured at December 31, 2023
| Quoted prices in active markets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3) |  | Total
Financial assets at fair value: |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  |
Money market securities | $ | 205,074 |  |  | $ | — |  |  | $ | — |  |  | $ | 205,074 |
Total financial assets at fair value | $ | 205,074 |  |  | $ | — |  |  | $ | — |  |  | $ | 205,074 |
| Fair valued measured at December 31, 2022
| Quoted prices in active markets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3) |  | Total
Financial assets at fair value: |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  |
Money market securities | $ | 50,010 |  |  | $ | — |  |  | $ | — |  |  | $ | 50,010 |
Total financial assets at fair value | $ | 50,010 |  |  | $ | — |  |  | $ | — |  |  | $ | 50,010 |
Derivative Financial Instruments Certain of the Company’s warrants are classified as liabilities and measured at fair value on the issuance date, with changes in fair value recognized as other income (expense) in the consolidated statements of operations and comprehensive loss. The following table presents changes in Level 3 liabilities measured at fair value (in thousands) for the years ended December 31, 2022 and 2021. Unobservable inputs were used to determine the fair value of positions that the Company has classified within the Level 3 category.
| Warrant liabilities
Fair value at December 31, 2020 | $ | 22,686 |
Change in fair value | (2,659) |
Redemption | (16,479) |
Fair value at December 31, 2021 | 3,548 |
Change in fair value | 1,701 |
Redemption | (5,249) |
Fair value at December 31, 2022 | — |
There were no warrant liabilities outstanding as of December 31, 2023 and 2022.

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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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