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Income Taxes - Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Taxes [Line Items] |  |  |
Total loss before income taxes | $ (160,777) | $ (111,439) | $ (93,145)
Ireland |  |  |
Income Taxes [Line Items] |  |  |
Total loss before income taxes | (45,689) | (53,717) | (36,631)
U.S. |  |  |
Income Taxes [Line Items] |  |  |
Total loss before income taxes | (114,942) | (57,755) | (56,687)
France |  |  |
Income Taxes [Line Items] |  |  |
Total loss before income taxes | $ (146) | $ 33 | $ 173

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