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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2022
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements Assets and liabilities recorded at fair value on a recurring basis in the consolidated balance sheets are categorized based upon the level of judgment associated with the inputs used to measure their fair values. Fair value represents the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The authoritative guidance on fair value measurements establishes a three-tier fair value hierarchy for disclosure of fair value measurements as follows: •Level 1 – Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date; •Level 2 – Inputs are observable, unadjusted quoted prices in active markets for similar assets or liabilities, unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities; and •Level 3 – Unobservable inputs that are significant to the measurement of the fair value of the assets or liabilities that are supported by little or no market data. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires management to make judgments and consider factors specific to the asset or liability. The Company’s financial assets consist of Level 1 and 2 assets. The Company had no Level 3 assets or liabilities for the periods presented. The Company classifies its cash equivalents and marketable securities within Level 1 or Level 2 because they are valued using either quoted market prices or inputs other than quoted prices which are directly or indirectly observable in the market, including readily-available pricing sources for the identical underlying security which may not be actively traded. The Company’s fixed income available-for-sale securities consist of high quality, investment grade securities from diverse issuers. The valuation techniques used to measure the fair value of the Company’s marketable securities were derived from non-binding market consensus prices that are corroborated by observable market data and quoted market prices for similar instruments. The following tables set forth the fair value of the Company’s financial assets and liabilities measured on a recurring basis by level within the fair value hierarchy (in thousands):
| December 31, 2022
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial Assets |  |  |  |  |  |  |
Money market funds | $ | 48,884 |  |  | $ | — |  |  | $ | — |  |  | $ | 48,884 |
Certificates of deposit | — |  |  | 4,169 |  |  | — |  |  | 4,169 |
Cash equivalents | 48,884 |  |  | 4,169 |  |  | — |  |  | 53,053 |
Commercial paper | — |  |  | 63,483 |  |  | — |  |  | 63,483 |
Agency debt securities | — |  |  | 5,778 |  |  | — |  |  | 5,778 |
U.S. Treasury and government debt securities | — |  |  | 12,752 |  |  | — |  |  | 12,752 |
Marketable securities | — |  |  | 82,013 |  |  | — |  |  | 82,013 |
Total Financial Assets | $ | 48,884 |  |  | $ | 86,182 |  |  | $ | — |  |  | $ | 135,066 |
| December 31, 2021
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial Assets |  |  |  |  |  |  |
Money market funds | $ | 65,311 |  |  | $ | — |  |  | $ | — |  |  | $ | 65,311 |
Certificates of deposit | — |  |  | 5,942 |  |  | — |  |  | 5,942 |
Cash equivalents | 65,311 |  |  | 5,942 |  |  | — |  |  | 71,253 |
Commercial paper | — |  |  | 50,954 |  |  | — |  |  | 50,954 |
U.S. Treasury and government debt securities | — |  |  | 26,167 |  |  | — |  |  | 26,167 |
Marketable securities | — |  |  | 77,121 |  |  | — |  |  | 77,121 |
Equity investment (1) | 5,948 |  |  | — |  |  | — |  |  | 5,948 |
Non-current assets | 5,948 |  |  | — |  |  | — |  |  | 5,948 |
Total Financial Assets | $ | 71,259 |  |  | $ | 83,063 |  |  | $ | — |  |  | $ | 154,322 |
There were no transfers between Level 1 and Level 2 fair value measurement categories during the years ended December 31, 2022 and 2021. _______________ (1)See Note 2 to the Company’s consolidated financial statements “Basis of Presentation and Summary of Significant Accounting Policies — Impairment of Equity Investment.”

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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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