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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Deferred tax assets: |  |
Net operating loss carryforwards | $ 1,405 | $ 1,020
Tax credit carryforwards | 53,788 | 58,349
Inventory | 14,737 | 16,592
Accruals and reserves | 5,090 | 6,684
Deferred revenue | 9,463 | 13,460
Stock-based compensation | 13,787 | 12,087
Lease liability | 1,445 | 2,277
Capitalized R&D | 114,050 | 93,340
Other | 383 | 144
Gross deferred tax assets | 214,148 | 203,953
Valuation allowance | (30,571) | (29,908)
Total deferred tax assets | 183,577 | 174,045
Deferred tax liabilities: |  |
Fixed assets | (1,760) | (1,484)
Right of use assets | (1,006) | (1,710)
Intangible assets | (3,211) | (3,160)
Total deferred tax liabilities | (5,977) | (6,354)
Deferred tax assets | $ 177,600 | $ 167,691

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