CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - 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	$ (246)	$ 34,156	$ 12,020	$ 99,698
General and administrative	5,883	12,805	23,712	37,797
Restructuring costs	83		10,059
Total operating expenses	5,720	46,961	45,791	137,495
Loss from operations	(5,720)	(46,961)	(45,791)	(137,495)
Total other income (loss), net:
Interest income	1,494	1,522	4,100	4,362
Other income (loss), net	100	1,167	1,190	2,411
Net loss	$ (4,126)	$ (44,272)	$ (40,501)	$ (130,722)
Net loss per share - basic	$ (0.04)	$ (0.39)	$ (0.35)	$ (1.3)
Net loss per share - diluted	$ (0.04)	$ (0.39)	$ (0.35)	$ (1.3)
Weighted-average common shares outstanding - basic	115,399,516	113,894,188	115,073,622	100,683,322
Weighted-average common shares outstanding - diluted	115,399,516	113,894,188	115,073,622	100,683,322
Comprehensive loss:
Net Income (Loss)	$ (4,126)	$ (44,272)	$ (40,501)	$ (130,722)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on available-for-sale securities	5	25	(72)	268
Total other comprehensive income (loss)	5	25	(72)	268
Comprehensive loss	$ (4,121)	$ (44,247)	$ (40,573)	$ (130,454)