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Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |
Federal statutory rate | 21.00% | 21.00% | 21.00%
Tax benefit at federal statutory rate | $ (26,061) | $ (18,690) | $ (8,211)
State taxes, net of federal benefit | (8,397) | (5,722) | (15,350)
Section 162(m) limitations | 11,715 | 6,083 | 9,008
Stock-based compensation | (10,192) | (9,768) | (49,020)
Global intangible low-taxed income inclusion | 2,259 | 2,850 | 2,023
Induced conversion | 8,834 | 0 | 0
Meals & entertainment | 821 | 263 | 33
Permanent items | 432 | 603 | (634)
Tax benefit of federal R&D credit | (8,036) | (6,406) | (3,694)
Foreign income taxes | 1,677 | 256 | 390
Valuation allowance | 30,636 | 32,896 | 64,602
Other | (261) | (418) | (517)
Total income tax provision | $ 3,427 | $ 1,947 | $ (1,370)

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