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INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Income Tax Disclosure [Abstract] |  |  |
Net operating loss carryforwards | $ 4,491 | $ 15,533 |
Stock-based compensation | 4,755 | 5,207 |
Research and development credits | 61,198 | 38,146 |
Lease liability | 13,004 | 5,739 |
Section 174 research and development capitalization | 190,768 | 102,055 |
Marketing and advertising | 674 | 766 |
Sales tax / Value added tax ("VAT") reserve | 560 | 397 |
Other deferred tax assets | 70 | 65 |
Valuation allowance | (256,728) | (156,870) | $ (108,504)
Total deferred tax assets | 18,792 | 11,038 |
ROU asset | (10,757) | (4,354) |
Property and equipment | (2,885) | (2,164) |
Capitalized software | (4,444) | (3,716) |
Other deferred tax liabilities | (322) | (38) |
Total deferred tax liabilities | (18,408) | (10,272) |
Net deferred taxes | $ 384 | $ 766 |

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