Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses:
Research and development	$ 59,755	$ 158,692
General and administrative	65,598	36,878
Total operating expenses	125,353	195,570
Loss from operations	(125,353)	(195,570)
Other income (expense):
Interest income, net	4,321	243
Other income (expense), net	10,409	(455)
Net loss before income taxes	(110,623)	(195,782)
Income tax (benefit) expenses	(333)	518
Net loss	(110,290)	(196,300)
Other comprehensive (loss) income:
Foreign currency translation (loss) income, net of tax	(1,712)	512
Unrealized (loss) gain on marketable securities, net of tax	(894)	54
Comprehensive loss	$ (112,896)	$ (195,734)
Net loss per share attributable to ordinary shareholders, basic (in dollars per share)	$ (1.02)	$ (5.71)
Net loss per share attributable to ordinary shareholders, diluted (in dollars per share)	$ (1.02)	$ (5.71)
Weighted-average shares outstanding used in computing net loss per share attributable to ordinary shareholders, basic (in shares)	107,923,296	34,394,622
Weighted-average shares outstanding used in computing net loss per share attributable to ordinary shareholders, diluted (in shares)	107,923,296	34,394,622