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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2023
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements Available-for-sale marketable securities held as of December 31, 2023 and 2022 were as follows (in thousands):
|  |  | Gross Unrealized |  | Aggregate Fair Value |  | Classification on Balance Sheet
| Amortized Cost |  |  |  |  |  |  | Short-Term Marketable Securities |  | Long-Term Marketable Securities
As of December 31, 2023 |  | Gains |  | Losses |  |  |
Time deposits | $ | 14,426 |  |  | $ | — |  |  | $ | — |  |  | $ | 14,426 |  |  | $ | 14,426 |  |  | $ | — |
Commercial paper | 6,249 |  |  | — |  |  | (5) |  |  | 6,244 |  |  | 6,244 |  |  | — |
Corporate bonds | 1,328,980 |  |  | 6,429 |  |  | (4,201) |  |  | 1,331,208 |  |  | 276,975 |  |  | 1,054,233 |
U.S. government agency obligations | 428,157 |  |  | 2,462 |  |  | (979) |  |  | 429,640 |  |  | 74,369 |  |  | 355,271 |
| $ | 1,777,812 |  |  | $ | 8,891 |  |  | $ | (5,185) |  |  | $ | 1,781,518 |  |  | $ | 372,014 |  |  | $ | 1,409,504 |
As of December 31, 2022 |  |  |  |  |  |  |  |  |  |  |
Time deposits | $ | 19,530 |  |  | $ | — |  |  | $ | — |  |  | $ | 19,530 |  |  | $ | 19,530 |  |  | $ | — |
Corporate bonds | 624,082 |  |  | — |  |  | (21,029) |  |  | 603,053 |  |  | 362,458 |  |  | 240,595 |
U.S. government agency obligations | 252,573 |  |  | — |  |  | (10,391) |  |  | 242,182 |  |  | 180,320 |  |  | 61,862 |
| $ | 896,185 |  |  | $ | — |  |  | $ | (31,420) |  |  | $ | 864,765 |  |  | $ | 562,308 |  |  | $ | 302,457 |
The Company offers certain eligible employees the ability to participate in a non-qualified deferred compensation plan. The mutual funds held by the Company that are associated with this plan are classified as restricted trading securities. Additionally, the Company holds certain money market funds that are classified as marketable securities. These securities are not included in the available-for-sale securities table above but are included in marketable securities in the consolidated balance sheets. Unrealized gains and unrealized temporary losses on investments classified as available-for-sale are included within accumulated other comprehensive loss in the consolidated balance sheets. Upon realization, those amounts are reclassified from accumulated other comprehensive loss to interest and marketable securities income, net in the consolidated statements of income. As of December 31, 2023, the Company held for investment corporate bonds and U.S. government agency obligations with a fair value of $313.5 million, which are classified as available-for-sale marketable securities and have been in a continuous unrealized loss position for more than 12 months. The unrealized losses related to these securities were $4.9 million and are included in accumulated other comprehensive loss as of December 31, 2023. The unrealized losses are attributable to changes in interest rates. Based on the evaluation of available evidence, the Company does not believe any unrealized losses represent other than temporary impairments. The fair value measurements within the fair value hierarchy of the Company’s financial assets as of December 31, 2023 and 2022 were as follows (in thousands):
| Total Fair Value |  | Fair Value Measurements at Reporting Date Using
| Level 1 |  | Level 2 |  |
As of December 31, 2023 |  |  |  |  |  |  |
Cash Equivalents and Marketable Securities: |  |  |  |  |  |  |
Money market funds | $ | 177,240 |  |  | $ | 177,240 |  |  | $ | — |  |  |
Time deposits | 39,670 |  |  | — |  |  | 39,670 |  |  |
Commercial paper | 6,244 |  |  | — |  |  | 6,244 |  |  |
Corporate bonds | 1,331,208 |  |  | — |  |  | 1,331,208 |  |  |
U.S. government agency obligations | 429,640 |  |  | — |  |  | 429,640 |  |  |
Mutual funds | 22,942 |  |  | 22,942 |  |  | — |  |  |
| $ | 2,006,944 |  |  | $ | 200,182 |  |  | $ | 1,806,762 |  |  |
As of December 31, 2022 |  |  |  |  |  |  |
Cash Equivalents and Marketable Securities: |  |  |  |  |  |  |
Money market funds | $ | 999 |  |  | $ | 999 |  |  | $ | — |  |  |
Time deposits | 285,830 |  |  | — |  |  | 285,830 |  |  |
Corporate bonds | 603,053 |  |  | — |  |  | 603,053 |  |  |
U.S. government agency obligations | 242,182 |  |  | — |  |  | 242,182 |  |  |
Mutual funds | 18,745 |  |  | 18,745 |  |  | — |  |  |
| $ | 1,150,809 |  |  | $ | 19,744 |  |  | $ | 1,131,065 |  |  |
As of December 31, 2023 and 2022, the Company grouped money market funds and mutual funds using a Level 1 valuation because market prices for such investments are readily available in active markets. As of December 31, 2023 and 2022, the Company grouped time deposits, commercial paper, corporate bonds and U.S. government agency obligations using a Level 2 valuation because quoted prices for similar assets in active markets (or identical assets in an inactive market) are available. The Company did not have any transfers of assets or liabilities between Level 1 or Level 2 of the fair value measurement hierarchy during the years ended December 31, 2023 and 2022. When developing fair value estimates, the Company maximizes the use of observable inputs and minimizes the use of unobservable inputs. When available, the Company uses quoted market prices to measure fair value. The valuation technique used to measure fair value for the Company's Level 1 and Level 2 assets is a market approach, using prices and other relevant information generated by market transactions involving identical or comparable assets. If market prices are not available, the fair value measurement is based on models that use primarily market-based parameters including yield curves, volatilities, credit ratings and currency rates. In certain cases where market rate assumptions are not available, the Company is required to make judgments about the assumptions market participants would use to estimate the fair value of a financial instrument. Contractual maturities of the Company’s available-for-sale marketable securities held as of December 31, 2023 and 2022 were as follows (in thousands):
| December 31, 2023 |  | December 31, 2022
Due in 1 year or less | $ | 372,014 |  |  | $ | 562,308 |
Due after 1 year through 5 years | 1,409,504 |  |  | 302,457 |
| $ | 1,781,518 |  |  | $ | 864,765 |

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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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