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INCOME TAXES - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Deferred tax assets: |  |  |
Tax credit carryforwards | $ 110,031 | $ 129,513 |
Reserves and accruals | 103,731 | 78,993 |
Intangible assets | 487,947 | 506,398 |
Capitalized research and development expense for income tax purposes | 368,085 | 242,465 |
Operating loss carryforwards | 9,781 | 9,598 |
Deferred income | 79,195 | 77,066 |
Capital loss carryforwards | 16,861 | 16,483 |
Stock-based compensation costs | 34,045 | 27,409 |
Depreciation and amortization | 17,228 | 10,671 |
Investments | 20,757 | 15,949 |
Lease liability | 33,341 | 33,639 |
Prepaid expenses | 0 | 3,253 |
Total deferred tax assets | 1,281,002 | 1,151,437 |
Valuation allowance | (90,603) | (79,162) | $ (70,100)
Net deferred tax assets | 1,190,399 | 1,072,275 |
Deferred tax liabilities: |  |  |
Intangible assets | (107,251) | (83,308) |
Undistributed foreign earnings | (76,045) | (64,371) |
ROU assets | (33,341) | (33,639) |
Investments | 14,171 | 6,318 |
Other | (7,869) | (13,455) |
Total deferred tax liabilities | (238,677) | (201,091) |
Total net deferred tax assets | 951,722 | 871,184 |
Increase (decrease) in valuation allowance on deferred tax assets | $ 11,400 | $ 9,100 | $ (38,100)

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