FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Schedule of Reconciliation of Common Stock Warrant Liability and Derivative Liability Measured and Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Derivative Liabilities | Series A Derivative Liability | ||
| Level 3 Liabilities [Roll Forward] | ||
| Fair value-beginning of period | $ 10,800 | $ 408,800 |
| Change in fair value | (4,900) | (176,700) |
| Fair value-end of period | 5,900 | 232,100 |
| Derivative Liabilities | Series B Derivative Liability | ||
| Level 3 Liabilities [Roll Forward] | ||
| Fair value-beginning of period | 5,400 | 230,625 |
| Change in fair value | (2,475) | (105,000) |
| Fair value-end of period | $ 2,925 | 125,625 |
| Common Stock Warrant Liability | ||
| Level 3 Liabilities [Roll Forward] | ||
| Fair value-beginning of period | 19,514 | |
| Change in fair value | (12,861) | |
| Fair value-end of period | $ 6,653 | |