Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Total collaboration and license revenues	$ 382,882	$ 77,517	$ 15,000
Operating expenses:
Research and development (($24,891), ($3,446) and $0 from a related party)	256,348	159,348	78,481
General and administrative	72,286	42,404	25,228
Total operating expenses	328,634	201,752	103,709
Income (Loss) from operations	54,248	(124,235)	(88,709)
Non-operating income (expense):
Interest and other income, net	657	1,377	5,201
Effective interest on liability for sale of future royalties	(260)
Gain on deemed sale from equity method investee		613
Share of loss from equity method investee		(613)	(1,202)
Total non-operating income, net	397	1,377	3,999
Income (loss) before income taxes	54,645	(122,858)	(84,710)
Income Tax expense	(1,815)
Net Income (loss)	52,830	(122,858)	(84,710)
Other comprehensive income (loss)	(1,305)	(20)	171
Comprehensive income (loss)	$ 51,525	$ (122,878)	$ (84,539)
Net income (loss) per share, basic	$ 0.76	$ (2.24)	$ (1.93)
Weighted-average common shares used to compute basic net income (loss) per share	69,345,490	54,787,118	43,825,991
Net income (loss) per share, diluted	$ 0.71	$ (2.24)	$ (1.93)
Weighted-average number of shares used to compute diluted net income (loss) per share	73,966,267	54,787,118	43,825,991
License Revenue
Revenues:
Total collaboration and license revenues	$ 343,838	$ 55,096	$ 8,000
License and Development Services Revenue
Revenues:
Total collaboration and license revenues	1,135
Other Collaboration Revenue
Revenues:
Total collaboration and license revenues	$ 37,909	$ 22,421	$ 7,000