Condensed Consolidated Statements of Operations - Unaudited - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Operating expenses
Research and development	$ 29,404	$ 26,364	$ 56,637	$ 51,981
General and administrative	13,652	13,455	26,495	28,714
Total operating expenses	43,056	39,819	83,132	80,695
Operating loss	(43,056)	(39,819)	(83,132)	(80,695)
Interest income	4,537	5,965	9,380	11,262
Interest expense	(3)	(4)	(5)	(7)
Net loss before income taxes	(38,522)	(33,858)	(73,757)	(69,440)
Income tax (benefit) expense	(56)	965	42	2,292
Net loss before noncontrolling interest	(38,466)	(34,823)	(73,799)	(71,732)
Net loss attributable to noncontrolling interest	(25,960)	(25,705)	(51,801)	(52,949)
Net loss available to Class A ordinary shareholders	(12,506)	(9,118)	(21,998)	(18,783)
Common Class A [Member]
Operating expenses
Net loss available to Class A ordinary shareholders	$ (12,506)	$ (9,118)	$ (21,998)	$ (18,783)
Weighted Average Number of Shares Outstanding, Basic	75,908,017	64,562,209	68,429,869	64,551,281
Weighted Average Number Of Shares Outstanding, Diluted	75,908,017	64,562,209	68,429,869	64,551,281
Net loss per share attributable to Class A ordinary shares, Basic	$ (0.16)	$ (0.14)	$ (0.32)	$ (0.29)
Net loss per share attributable to Class A ordinary shares, Diluted	$ (0.16)	$ (0.14)	$ (0.32)	$ (0.29)