CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating expenses:
Research and development	[1]	$ 43,618	$ 37,129	$ 70,819	$ 129,164
Acquired in-process research and development(2)	[2]	150	0	975	0
Selling, general and administrative		10,107	14,620	21,152	23,324
Total operating expenses		53,875	51,749	92,946	152,488
Loss from operations		(53,875)	(51,749)	(92,946)	(152,488)
Other income (expense):
Other income		3,647	759	7,397	832
Total other income		3,647	759	7,397	832
Net loss		(50,228)	(50,990)	(85,549)	(151,656)
Other comprehensive income (loss)
Unrealized gain on available-for-sale securities, net of tax		93	0	250	8
Comprehensive loss		$ (50,135)	$ (50,990)	$ (85,299)	$ (151,648)
Earnings Per Share, Basic		$ (0.46)	$ (0.47)	$ (0.78)	$ (1.40)
Earnings Per Share, Diluted		$ (0.46)	$ (0.47)	$ (0.78)	$ (1.40)
Weighted Average Number of Shares Outstanding, Basic		109,450,071	108,166,890	109,119,630	108,019,051
Weighted Average Number of Shares Outstanding, Diluted		109,450,071	108,166,890	109,119,630	108,019,051

[1] Includes related-party amounts of $2,258 and $5,218 for the three and six months ended June 30, 2023, respectively, and $2,285 and $4,285 for the three and six months ended June 30, 2022, respectively

[2] Includes related-party amounts of $0 and $375 for the three and six months ended June 30, 2023, respectively, and includes no related-party amounts for both the three and six months ended June 30, 2022 (see Note 15).