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Income Tax (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income Tax [Line Items] |  |  |
Corporate income tax rate | 25.00% | 25.00% | 25.00%
Unrecognized tax benefits | 12 months |  |
United States [Member] |  |  |
Income Tax [Line Items] |  |  |
Corporate income tax rate | 21.00% |  |
Tax losses | $ 78,743 | $ 60,568 |
Percentage of taxable income annual limitation to offset against future taxable profits | 80.00% |  |
New Jersey [Member] |  |  |
Income Tax [Line Items] |  |  |
Corporate income tax rate | 9.00% |  |
Adlai Hangzhou in Mainland China [Member] |  |  |
Income Tax [Line Items] |  |  |
Corporate income tax rate | 25.00% |  |
Tax losses | $ 133,937 | $ 108,956 |
Adlai Hangzhou in Mainland China [Member] | Bottom of Range [Member] |  |  |
Income Tax [Line Items] |  |  |
Expiries extending term | 5 years |  |
Unused tax losses expiry term | 5 years |  |
Adlai Hangzhou in Mainland China [Member] | Top of Range [Member] |  |  |
Income Tax [Line Items] |  |  |
Expiries extending term | 10 years |  |
Unused tax losses expiry term | 10 years |  |

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