Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue:
Collaboration agreements	$ 1,073	$ 30,249	$ 53,477	$ 35,927
Operating expenses:
Research and development, net of tax credits	30,075	33,788	63,045	65,618
General and administrative	8,317	8,719	16,935	17,248
Total operating expenses	38,392	42,507	79,980	82,866
Loss from operations	(37,319)	(12,258)	(26,503)	(46,939)
Other income (expense), net
Realized and unrealized gain (loss) on foreign exchange	6	(41)	37	(97)
Interest income	2,894	3,489	5,862	6,916
Other expense	(29)	(26)	(53)	(41)
Total other income, net	2,871	3,422	5,846	6,778
Loss before income taxes	(34,448)	(8,836)	(20,657)	(40,161)
Income tax expense	(326)	(3,110)	(955)	(6,726)
Net loss	(34,774)	(11,946)	(21,612)	(46,887)
Unrealized (loss) gain on available-for-sale marketable securities	(21)	(189)	(162)	4
Total other comprehensive (loss) income	(21)	(189)	(162)	4
Comprehensive loss	$ (34,795)	$ (12,135)	$ (21,774)	$ (46,883)
Net loss per share attributable to common shareholders--basic	$ (0.82)	$ (0.28)	$ (0.51)	$ (1.11)
Net loss per share attributable to common shareholders--diluted	$ (0.82)	$ (0.28)	$ (0.51)	$ (1.11)
Weighted-average common shares outstanding-basic	42,445,462	42,089,530	42,339,732	42,065,237
Weighted-average common shares outstanding-diluted	42,445,462	42,089,530	42,339,732	42,065,237