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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred tax assets: |  |
Net operating losses | $ 107,170 | $ 103,299
Tax credits | 34,885 | 29,582
Deferred revenue | 521 | 861
Equity compensation | 3,994 | 4,879
Lease liabilities | 17,465 | 18,822
Accrued compensation | 3,225 | 3,323
Bad debt | 502 | 447
Other accrued expense | 318 | 218
Capitalized research and development costs | 45,820 | 35,047
Other | 4,033 | 1,369
Gross deferred tax assets | 217,933 | 197,847
Less: Valuation allowance | (187,969) | (161,966)
Total deferred tax assets | 29,964 | 35,881
Deferred tax liabilities: |  |
Prepaid expenses | (13,298) | (16,505)
Right-of-use assets | (8,406) | (10,626)
Depreciation | (3,245) | (3,779)
Intangible assets | (688) | (1,179)
Other | (198) | (341)
Total deferred tax liabilities | (25,835) | (32,430)
Net deferred tax assets | $ 4,129 | $ 3,451

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