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Revenue - Disclosure of Revenue (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Revenue [abstract]      
Contract revenue $ 750 $ 2,090 $ 9,979
Grant revenue 2,580 13,528 7,409
Total revenue $ 3,330 $ 15,618 $ 17,388