FAIR VALUE MEASUREMENTS (Tables)
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6 Months Ended |
Jun. 30, 2024 |
| Fair Value Disclosures [Abstract] |
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| Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis |
The following table presents assets and liabilities measured at fair value on a recurring basis using the above input categories: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2024 | | December 31, 2023 | | | | | | | | | | | | | | (In thousands) | | Level 1 | | Level 2 | | Level 3 | | Level 1 | | Level 2 | | Level 3 | | Assets: | | | | | | | | | | | | | Cash and cash equivalents: | | | | | | | | | | | | | Money market funds | $ | 79,051 | | | $ | — | | | $ | — | | | $ | 132,037 | | | $ | — | | | $ | — | | | Certificates of deposit | — | | | | | — | | | — | | | 750 | | | — | | | Commercial paper | — | | | — | | | — | | | — | | | 1,694 | | | — | | | Corporate notes and bonds | | | 3,551 | | | — | | | — | | | 462 | | | — | | | U.S. Treasuries | | | 24,963 | | | — | | | — | | | — | | | — | | | Marketable securities: | | | | | | | | | | | | | Certificates of deposit | — | | | 41,240 | | | — | | | — | | | 55,162 | | | — | | | Commercial paper | — | | | 70,787 | | | — | | | — | | | 69,743 | | | — | | | Corporate notes and bonds | — | | | 388,332 | | | — | | | — | | | 405,634 | | | — | | | U.S. Treasuries | — | | | 222,638 | | | — | | | — | | | 327,891 | | | — | | | U.S. Government agency securities | — | | | 671,305 | | | — | | | — | | | 547,856 | | | — | | | | | | | | | | | | | | | Other assets | | | | | | | | | | | | | Investments in debt securities | — | | | — | | | 78,866 | | | — | | | — | | | 79,855 | | | | | | | | | | | | | | | Total assets measured at fair value | $ | 79,051 | | | $ | 1,422,816 | | | $ | 78,866 | | | $ | 132,037 | | | $ | 1,409,192 | | | $ | 79,855 | | | | | | | | | | | | | | | Liabilities: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Warranty obligations | | | | | | | | | | | | | Current | $ | — | | | $ | — | | | $ | 21,858 | | | $ | — | | | $ | — | | | $ | 28,667 | | | Non-current | — | | | — | | | 128,335 | | | — | | | — | | | 133,126 | | | Total warranty obligations measured at fair value | — | | | — | | | 150,193 | | | — | | | — | | | 161,793 | | | Total liabilities measured at fair value | $ | — | | | $ | — | | | $ | 150,193 | | | $ | — | | | $ | — | | | $ | 161,793 | |
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| Summary of Significant Unobservable Inputs used in the Fair Value Measurement of Assets Designated as Level 3 |
The changes in the balance in investments in debt securities during the period were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | | | 2024 | | 2023 | | 2024 | | 2023 | | | | | | | | | | | | | | (In thousands) | | Balance at beginning of period | $ | 80,797 | | | $ | 58,521 | | | $ | 79,855 | | | $ | 56,777 | | | | | | | | | | | | | | | Fair value adjustments included in other income, net | (1,931) | | | 1,754 | | | (989) | | | 3,498 | | | | | | | | | | | | | | | Balance at end of period | $ | 78,866 | | | $ | 60,275 | | | $ | 78,866 | | | $ | 60,275 | | | |
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| Schedule of Changes in Nonfinancial Liabilities Related to Warrant Obligations Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs |
The following table provides information regarding changes in nonfinancial liabilities related to the Company’s warranty obligations measured at fair value on a recurring basis using significant unobservable inputs designated as Level 3 for the periods indicated: | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | 2024 | | 2023 | | 2024 | | 2023 | | | | | | | | | | | | | | (In thousands) | | Balance at beginning of period | $ | 150,550 | | | $ | 119,508 | | | $ | 161,793 | | | $ | 106,489 | | | | | Accruals for warranties issued during period | 6,417 | | | 16,344 | | | 12,499 | | | 32,369 | | | | | Changes in estimates | (2,450) | | | (12,925) | | | (14,468) | | | (11,680) | | | | | Settlements | (5,796) | | | (6,179) | | | (12,336) | | | (14,013) | | | | | Increase due to accretion expense | 2,690 | | | 3,907 | | | 5,595 | | | 7,452 | | | | | Change in discount rate | 759 | | | 31,797 | | | 759 | | | 31,797 | | | | | Other | (1,977) | | | (1,911) | | | (3,649) | | | (1,874) | | | | | Balance at end of period | $ | 150,193 | | | $ | 150,540 | | | $ | 150,193 | | | $ | 150,540 | | | |
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| Summary of Significant Unobservable Inputs used in the Fair Value Measurement of Liabilities Designated as Level 3 |
As of June 30, 2024 and December 31, 2023, the significant unobservable inputs used in the fair value measurement of the Company’s liabilities designated as Level 3 were as follows, of which the monetary impact for change in discount rate is captured in “Change in discount rate” in the table above: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Percent Used (Weighted Average) | | Item Measured at Fair Value | | Valuation Technique | | Description of Significant Unobservable Input | | June 30, 2024 | | December 31, 2023 | | Warranty obligations for products sold since January 1, 2014 | | Discounted cash flows | | Profit element and risk premium | | 17% | | 17% | | | Credit-adjusted risk-free rate | | 7% | | 7% | | | | | | | | | | | | | | | | | | |
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