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INCOME TAXES - Components of deferred income tax assets and liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Assets: |  |
Net operating loss carryforwards | $ 491,584 | $ 399,412
Capital loss carryforwards | 98,862 | 100,069
Tax credit carryforwards | 27,410 | 25,405
Capitalized research and development expenses | 62,480 | 71,587
Deferred revenue | 2,350 | 7,687
Accrued expenses | 13,299 | 12,106
Inventory | 1,853 | 1,899
Stock-based compensation | 1,844 | 1,299
Fixed assets | 1,333 | 624
Lease liabilities | 18,007 | 11,993
Interest Limitation Carryforward | 11,283 |
Other temporary differences | 4,066 | 1,551
Deferred tax assets, gross | 734,371 | 633,632
Valuation allowance | (512,621) | (493,855)
Total deferred tax assets | 221,750 | 139,777
Liabilities: |  |
Intangible assets | (30,384) | (37,488)
Operating lease right-of-use assets | (11,711) | (8,712)
Unremitted foreign income | (11,065) | (10,536)
Total deferred tax liabilities | (53,160) | (56,736)
Deferred income taxes - net noncurrent assets | 174,318 | 88,982
Deferred income taxes - net noncurrent liabilities | (5,728) | (5,941)
Total net deferred tax assets | $ 168,590 | $ 83,041

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