Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
License and collaboration revenue	$ 41,716		$ 194,238
Total revenue	41,716		194,238
Operating expenses:
Research and development expenses	26,910	$ 14,238	48,006	$ 25,881
General and administrative expenses	11,471	15,101	22,086	22,147
Total operating expenses	38,381	29,339	70,092	48,028
Income (loss) from operations	3,335	(29,339)	124,146	(48,028)
Other income and expenses:
Grant income	147	2,701	638	7,616
Research and development tax credits	292	119	546	119
Other (expense) income, net	4,669	60	2,646	300
Income (loss) before income taxes	8,443	(26,459)	127,976	(39,993)
Income tax expense	(2,817)		(52,768)
Net income (loss)	$ 5,626	$ (26,459)	$ 75,208	$ (39,993)
Basic net income (loss) per common share	$ 0.16	$ (0.75)	$ 2.12	$ (1.14)
Diluted net income (loss) per common share	$ 0.15	$ (0.75)	$ 1.98	$ (1.14)
Weighted-average common shares outstanding - basic	35,546,605	35,119,952	35,520,086	35,103,294
Weighted-average common shares outstanding - diluted	37,635,828	35,119,952	37,931,692	35,103,294
Net income (loss)	$ 5,626	$ (26,459)	$ 75,208	$ (39,993)
Foreign currency translation adjustments	(741)	(74)	(1,291)	(379)
Comprehensive income (loss)	$ 4,885	$ (26,533)	$ 73,917	$ (40,372)