Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 14,090	$ 102,694
Operating expenses:
Research and development expenses	159,424	86,744	$ 28,974
Selling, general and administrative expenses	37,633	19,507	6,003
Total operating expenses	197,057	106,251	34,977
Operating loss	(182,967)	(3,557)	(34,977)
Other income (expense):
Interest income	11,283
Interest expense		(287)	(411)
Loss on debt extinguishment			(883)
Fair value change - earnout and warrants	(10,284)	(1,041)
Fair value change - profit rights		(12,390)	(20,613)
Fair value change - tranche rights		4,388	13,393
Foreign exchange gains/(losses)	5,058	(9,747)	1,706
Loss before tax	(176,910)	(22,634)	(41,785)
Income tax expense	27
Loss for the year	(176,937)	(22,634)	(41,785)
Other comprehensive income (loss)
Foreign currency translation adjustments		11,126	286
Total comprehensive income (loss) for the year, net of tax	$ (176,937)	$ (11,508)	$ (41,499)
Net loss per ordinary share
Basic	$ (2.15)	$ (1.19)	$ (3.81)
Diluted	$ (2.15)	$ (1.19)	$ (3.81)