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Income Taxes - Components of Deferred Tax Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred tax assets |  |
Amortization and depreciation | $ 64,237 | $ 64,919
Net operating loss carryforwards | 103,643 | 98,702
Tax credits | 15,529 | 15,375
Stock-based compensation | 11,226 | 6,946
Deferred royalty obligation | 6,409 | 4,907
Other | 8,122 | 6,707
Deferred tax assets | 209,166 | 197,556
Valuation allowance | (208,568) | (196,197)
Deferred tax assets net of valuation allowance | 598 | 1,359
Deferred tax liabilities |  |
Right-of-use asset | (598) | (1,359)
Deferred tax liabilities | (598) | (1,359)
Net deferred taxes | $ 0 | $ 0

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