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Fair Value Measurements | 9 Months Ended
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Sep. 30, 2023
Fair Value Disclosures [Abstract] |
Fair Value Measurements | 7. Fair Value Measurements The carrying amounts of cash and cash equivalents, restricted cash, accounts payable, and accrued expenses approximated their estimated fair values due to the short-term nature of these financial instruments. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value are performed in a manner to maximize the use of observable inputs and minimize the use of unobservable inputs. The accounting standard describes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value, which are the following: Level 1— Quoted prices (unadjusted) in active markets that are accessible at the market date for identical unrestricted assets or liabilities. Level 2— Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs for which all significant inputs are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. 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. The table below presents information about the Company’s assets and liabilities that are regularly measured and carried at fair value and indicate the level within the fair value hierarchy of valuation techniques the Company utilized to determine such fair values (in thousands):
|  | Fair Value Measurements Using |
|  |  |  |  | Quoted |  |  |  |  |  |  |
|  |  |  |  | Prices |  |  | Significant |  |  |  |
|  |  |  |  | (unadjusted) |  |  | Other |  |  | Significant |
|  | Total |  |  | in Active |  |  | Observable |  |  | Unobservable |
|  | Carrying |  |  | Markets |  |  | Inputs |  |  | Inputs |
|  | Value |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
|  | (In thousands) |
September 30, 2023 |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 94,550 |  |  | $ | 94,550 |  |  | $ | — |  |  | $ | — |
Short-term investments |  |  | 269,006 |  |  |  | — |  |  |  | 269,006 |  |  |  | — |
Long-term investments |  |  | 15,705 |  |  |  | — |  |  |  | 15,705 |  |  |  | — |
Total assets |  | $ | 379,261 |  |  | $ | 94,550 |  |  | $ | 284,711 |  |  | $ | — |
December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 74,356 |  |  | $ | 59,496 |  |  | $ | 14,860 |  |  | $ | — |
Short-term investments |  |  | 401,446 |  |  |  | — |  |  |  | 401,446 |  |  |  | — |
Long-term investments |  |  | 5,469 |  |  |  | — |  |  |  | 5,469 |  |  |  | — |
Total assets |  | $ | 481,271 |  |  | $ | 59,496 |  |  | $ | 421,775 |  |  | $ | — |
There have been no material impairments of our assets measured and carried at fair value during the period ended September 30, 2023 and 2022. In addition, there have been no changes in valuation techniques during the periods ended September 30, 2023 and 2022. The fair value of Level 1 instruments classified as cash equivalents are valued using quoted market prices in active markets. The fair value of Level 2 instruments classified as cash equivalents and short and long-term investments are determined based on quoted prices in active markets, which are either directly or indirectly observable as of the reporting date with fair value being determined using models or other valuation methodologies. The Company’s short and long-term investments are classified as available-for-sale securities. As of September 30, 2023, the remaining contractual maturities of the available-for-sale securities were 1 to 13 months, and the balance in the Company’s accumulated other comprehensive loss was comprised solely of activity related to the Company’s available-for-sale securities. There were no realized gains or losses recognized on the sale or maturity of available-for-sale securities, during the three and nine months ended September 30, 2023 and 2022. As a result, the Company did not reclassify any amounts out of accumulated other comprehensive loss for the same periods. The Company has a limited number of available-for-sale securities that are not in significant loss positions as of September 30, 2023, which the Company does not intend to sell, and it has concluded it will not be required to sell before recovery of the amortized cost for the investment at maturity. The following table summarizes the available-for-sale securities:
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  |  |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
|  | (In thousands) |
September 30, 2023 |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper |  | $ | 179,096 |  |  | $ | — |  |  | $ | (112 | ) |  | $ | 178,984 |
Corporate bonds |  |  | 7,899 |  |  |  | — |  |  |  | (22 | ) |  |  | 7,877 |
US Treasury |  |  | 48,244 |  |  |  | — |  |  |  | (131 | ) |  |  | 48,113 |
Federal bonds |  |  | 49,927 |  |  |  | — |  |  |  | (190 | ) |  |  | 49,737 |
|  | $ | 285,166 |  |  | $ | — |  |  | $ | (455 | ) |  | $ | 284,711 |
December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper |  | $ | 321,630 |  |  | $ | — |  |  | $ | (205 | ) |  | $ | 321,425 |
US Treasury |  |  | 64,759 |  |  |  | — |  |  |  | (566 | ) |  |  | 64,193 |
Federal bonds |  |  | 36,192 |  |  |  | — |  |  |  | (35 | ) |  |  | 36,157 |
|  | $ | 422,581 |  |  | $ | — |  |  | $ | (806 | ) |  | $ | 421,775 |

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 820 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//820/tableOfContent + Details
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