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Income Taxes - Narratives (Details) - USD ($) $ / shares in Units, $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Income taxes |  |  |  |
Net operating loss carryforward | $ 6,720,659 | $ 5,945,753 |  |
Tax relief credits | 704,928 | 704,928 | $ 0 |
Unrecognized tax benefits | 17,239 | 14,264 | 11,555 | $ 9,925
Tax benefit from foreign tax status | $ 4,631 |  |  |
Tax benefit from foreign tax status (per share) | $ 0.01 |  |  |
Tax on unremitted earnings | $ 23,735 | $ 0 | $ 0 |
State Administration of Taxation, China |  |  |  |
Income taxes |  |  |  |
Net operating loss carryforward | 2,185,546 |  |  |
Swiss Federal Tax Administration (FTA) |  |  |  |
Income taxes |  |  |  |
Net operating loss carryforward | 4,526,020 |  |  |
Tax relief credits | 704,928 |  |  |
BeiGene USA |  |  |  |
Income taxes |  |  |  |
Tax credit carryforwards | $ 43,677 |  |  |

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