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Fair Value Measurements | 9 Months Ended
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Sep. 30, 2021
Fair Value Disclosures [Abstract] |
Fair Value Measurements | (12) Fair Value Measurements Fair value is the exchange price to sell an asset or transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. Fair value measurements use market data or assumptions market participants would use in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs may be readily observable, corroborated by market data, or generally unobservable. Valuation techniques maximize the use of observable inputs and minimize use of unobservable inputs. Cash equivalents, Israeli severance funds and derivatives are valued utilizing the market approach to measure fair value for financial assets and liabilities. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. Assets and liabilities measured at fair value on a recurring basis are summarized below:
| Fair Value Measurements as of September 30, 2021
(in thousands) | Level 1 |  | Level 2 |  |  |  | Total
Description |  |  |  |  |  |  |
Cash equivalents (a) | $ | 305,432 |  |  | $ | — |  |  |  |  | $ | 305,432 |
Israeli severance funds (b) | $ | — |  |  | $ | 1,982 |  |  |  |  | $ | 1,982 |
| Fair Value Measurements as of December 31, 2020
(in thousands) | Level 1 |  | Level 2 |  |  |  | Total
Description |  |  |  |  |  |  |
Cash equivalents (a) | $ | 199 |  |  | $ | — |  |  |  |  | $ | 199 |
Israeli severance funds (b) | $ | — |  |  | $ | 6,422 |  |  |  |  | $ | 6,422 |
Derivative financial instruments (c) | $ | — |  |  | $ | (700) |  |  |  |  | $ | (700) |
a.Cash equivalents include funds held in money market instruments and are reported at their current carrying value, which approximates fair value due to the short-term nature of these instruments and are included in cash and cash equivalents in the condensed consolidated balance sheet. b.We partially fund a liability for our Israeli severance requirement through monthly deposits into fund accounts, the value of these contributions is recorded to non-current assets on the condensed consolidated balance sheet. c.Derivative instruments are reported based on published market prices for similar assets or are estimated based on published market prices for similar assets or are estimated based on observable inputs such as interest rates, yield curves, credit risks, spot and future commodity prices and spot and future exchange rates. See Note 10 for additional information on our derivative financial instruments. We did not have any transfers of assets and liabilities between Level 1, Level 2 and Level 3 of the fair value measurement hierarchy during the nine months ended September 30, 2021.

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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 http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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