Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue:
Revenue from contract with customer	$ 3,029	$ 82,654
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	us-gaap:LicenseAndServiceMember	us-gaap:LicenseAndServiceMember	us-gaap:LicenseAndServiceMember
Total revenue	$ 30,290	$ 82,654
Operating expenses:
Research and development expenses	172,650	99,862	$ 70,306
In-process research and development expenses	123,000
Loss on initial consolidation of variable interest entity	11,855
Change in fair value of contingent consideration liability	2,836
General and administrative expenses	57,386	38,588	13,742
Total operating expenses	367,727	138,450	84,048
Loss from operations	(364,698)	(55,796)	(84,048)
Other income (expense):
Interest income	830	3,400	8,801
Other expense	(4)	(16)	(58)
Total other income, net	826	3,384	8,743
Net loss	(363,872)	(52,412)	(75,305)
Deemed dividend resulting from extinguishment upon modification of Series C preferred stock		(177,789)
Net loss attributable to common stockholders	$ (363,872)	$ (230,201)	$ (75,305)
Net loss attributable to common stockholders per share, basic and diluted	$ (3.82)	$ (5.40)	$ (21.82)
Weighted average shares of common stock, basic and diluted	95,136,719	42,619,582	3,450,500
Other comprehensive income (loss):
Unrealized holding (loss) gain	$ (1,152)	$ (261)	$ 325
Total other comprehensive (loss) income	(1,152)	(261)	325
Total comprehensive loss	$ (365,024)	$ (52,673)	$ (74,980)