Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue:
License and collaboration revenue	$ 0	$ 41,716	$ 12,595	$ 194,238
Total revenue	0	41,716	12,595	194,238
Operating expenses:
Research and development expenses	29,186	26,910	54,885	48,006
General and administrative expenses	13,435	11,471	25,385	22,086
Total operating expenses	42,621	38,381	80,270	70,092
(Loss) income from operations	(42,621)	3,335	(67,675)	124,146
Other income and expenses:
Grant income	799	147	1,534	638
Research and development tax credits	386	292	729	546
Interest income	8,042	1,063	15,893	1,151
Other income (expense), net	326	3,606	2,099	1,495
(Loss) Income before income taxes	(33,068)	8,443	(47,420)	127,976
Income tax expense	(1,232)	(2,817)	(2,431)	(52,768)
Net (loss) income	$ (34,300)	$ 5,626	$ (49,851)	$ 75,208
Basic net (loss) income per common share	$ (0.96)	$ 0.16	$ (1.39)	$ 2.12
Diluted net (loss) income per common share	$ (0.96)	$ 0.15	$ (1.39)	$ 1.98
Weighted-average common shares outstanding - basic	35,768,952	35,546,605	35,742,641	35,520,086
Weighted-average common shares outstanding - diluted	35,768,952	37,635,828	35,742,641	37,931,692
Net Income (Loss)	$ (34,300)	$ 5,626	$ (49,851)	$ 75,208
Foreign currency translation adjustments	104	(741)	(1,902)	(1,291)
Unrealized loss on available-for-sale securities	(1,722)	0	(1,620)	0
Comprehensive (loss) income	$ (35,918)	$ 4,885	$ (53,373)	$ 73,917