Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Total revenues	$ 18,005	$ 9,461
Operating expenses:
Research and development (($30,299) and ($4,924) from a related party)	61,211	66,387
General and administrative (($98) and $0 from a related party)	23,974	15,821
Total operating expenses	85,185	82,208
Loss from operations	(67,180)	(72,747)
Non-operating income (expense):
Interest and other income, net	582	154
Effective interest on liability for sale of future royalties	(391)
Total non-operating income, net	191	154
Net loss before income taxes	(66,989)	(72,593)
Income tax expense	(1,004)	0
Net loss	(67,993)	(72,593)
Other comprehensive loss	(3,399)	(46)
Comprehensive loss	$ (71,392)	$ (72,639)
Net loss per share, basic and diluted	$ (0.96)	$ (1.08)
Weighted-average number of shares used to compute basic and diluted net loss per share	71,194,778	67,082,161
Other Collaboration Revenue
Revenues:
Total revenues	$ 10,066	$ 9,461
License and Development Services Revenue
Revenues:
Total revenues	$ 7,939