Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operating expenses:
Research and development expenses	$ 16,460	$ 25,154	$ 51,759	$ 94,554
General and administrative expenses	12,710	19,432	40,721	63,519
Total operating expenses	29,170	44,586	92,480	158,073
Loss from operations	(29,170)	(44,586)	(92,480)	(158,073)
Other income (expense):
Interest income	652	2,572	3,530	5,330
Interest expense	0	0	0	(2,468)
Other (expense) income	(22,517)	999	(21,184)	(202)
Total other (expense) income, net	(21,865)	3,571	(17,654)	2,660
Net loss from continuing operations	(51,035)	(41,015)	(110,134)	(155,413)
Net income (loss) from discontinued operations, net of tax	139,811	(6,839)	125,907	82,937
Net income (loss)	$ 88,776	$ (47,854)	$ 15,773	$ (72,476)
Net loss from continuing operations per share attributable to common stockholders, basic	$ (0.33)	$ (0.32)	$ (0.73)	$ (1.22)
Net loss from continuing operations per share attributable to common stockholders, diluted	(0.33)	(0.32)	(0.73)	(1.22)
Net income (loss) from discontinued operations per share attributable to common stockholders, basic	0.92	(0.05)	0.84	0.65
Net income (loss) from discontinued operations per share attributable to common stockholders, diluted	0.92	(0.05)	0.84	0.65
Net (loss) income per share attributable to common stockholders, basic	0.58	(0.37)	0.11	(0.57)
Net (loss) income per share attributable to common stockholders, diluted	$ 0.58	$ (0.37)	$ 0.11	$ (0.57)
Weighted-average common shares outstanding, basic	152,648,238	128,289,871	150,097,482	127,297,667
Weighted average common shares outstanding, diluted	152,648,238	128,289,871	150,097,482	127,297,667
Other comprehensive income :
Unrealized income on investments, net of tax of $0	$ 0	$ 0	$ 0	$ 10
Currency translation adjustment	0	1	0	2
Total other comprehensive income	0	1	0	12
Comprehensive income (loss)	$ 88,776	$ (47,853)	$ 15,773	$ (72,464)