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INCOME TAXES - Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
U.S. federal income tax benefit at statutory rate | $ (54,203) | $ (55,886) | $ (7,109)
State income tax expense, net of federal benefit | (9,444) | (12,297) | (1,170)
Research and development credit | (2,071) | (3,245) | (2,956)
Global intangible low-tax income, including true-up | 360 |  |
Global intangible low-tax income |  | (736) | 919
Other, net | 391 | (1) | (67)
Non-deductible executive compensation | 1,286 | 762 | 905
Stock-based compensation expense | 728 | 2,477 | 219
Change in valuation allowance | 63,637 | 110,646 | 10,643
Total provision for income taxes | $ 684 | $ 41,720 | $ 1,384

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