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FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025 | Nov. 06, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Realized gain (loss) | $ 0 | $ 0 | $ 5,700,000 | $ 0 |  |
Accrued interest | 0 |  | 0 |  | $ 13,100,000 |
Allowance for credit losses, excluding accrued interest | 0 |  | 0 |  | 0 |
Change in fair value of equity securities of a related party | 549,000 | 3,948,000 | (9,672,000) | (9,505,000) |  |
Aston Martin Lagonda Global Holdings plc | Strategic Technology Arrangement, Technology Access Fees | Related Party |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Number of shares received (in shares) |  |  |  |  |  | 28,352,273
Fair value amount | 14,200,000 |  | 14,200,000 |  | $ 24,300,000 | $ 73,200,000
Change in fair value of equity securities of a related party | 500,000 | 3,900,000 | (9,700,000) | (9,500,000) |  |
Aston Martin Lagonda Global Holdings plc | Strategic Technology Arrangement, Technology Access Fees | Related Party | Equity Securities |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Unrealized gain (loss), foreign currency transaction, before tax | $ 100,000 | $ 1,600,000 | $ (400,000) | $ 2,800,000 |  |

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