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FAIR VALUE MEASUREMENTS (Tables)
 12 Months Ended
Dec. 31, 2024
Fair Value Disclosures [Abstract]  
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:
December 31, 2024December 31, 2023
(In thousands)
Level 1Level 2Level 3Level 1Level 2Level 3
Assets:
Cash, cash equivalents and restricted cash:
Money market funds$191,410 $— $— $132,037 $— $— 
Certificates of deposit95,000 — — — 750 — 
Commercial paper— — — — 1,694 — 
Corporate notes and bonds— — — 462 — 
Marketable securities:
Certificates of deposit— 30,092 — — 55,162 — 
Commercial paper— 30,713 — — 69,743 — 
Corporate notes and bonds— 449,570 — — 405,634 — 
U.S. Treasuries— 111,612 — — 327,891 — 
U.S. Government agency securities— 631,493 — — 547,856 — 
Other assets:
Investments in debt securities— — 64,834 — — 79,855 
Total assets measured at fair value$286,410 $1,253,480 $64,834 $132,037 $1,409,192 $79,855 
Liabilities:
Warranty obligations:
Current$— $— $27,173 $— $— $28,667 
Non-current— — 143,743 — — 133,126 
Total warranty obligations measured at fair value— — 170,916 — — 161,793 
Total liabilities measured at fair value$— $— $170,916 $— $— $161,793 
Schedule 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:
Years Ended December 31,
20242023
(In thousands)
Balance at beginning of period$79,855 $56,777 
Investment— 15,000 
Fair value adjustments included in other income, net1,967 8,078 
Impairment (16,988)— 
Balance at end of period$64,834 $79,855 
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:
Years Ended December 31,
20242023
(In thousands)
Balance at beginning of period$161,793 $106,489 
Accruals for warranties issued during period27,500 51,716 
Changes in estimates625 (22,557)
Settlements(21,789)(26,022)
Increase due to accretion expense11,010 13,821 
Change in discount rate (459)44,422 
Other(7,764)(6,076)
Balance at end of period$170,916 $161,793 
Schedule of Significant Unobservable Inputs used in the Fair Value Measurement of Liabilities Designated as Level 3
As of December 31, 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 ValueValuation TechniqueDescription of Significant Unobservable InputDecember 31,
2024		December 31,
2023
Warranty obligations for products sold since January 1, 2014Discounted cash flowsProfit element and risk premium16.8%16.8%
Credit-adjusted risk-free rate7.2%7.2%