Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue:
Total revenue		$ 688	$ 625	$ 886	$ 1,987
Operating expenses:
Research and development	[1]	17,386	15,373	31,162	32,351
General and administrative		12,062	7,675	17,290	16,500
Acquired in-process research and development		130,486	0	130,486	0
Total operating expenses		159,934	23,048	178,938	48,851
Loss from operations		(159,246)	(22,423)	(178,052)	(46,864)
Other income (expense):
Interest income		350	104	770	139
Change in fair value of forward contract liability		(58,170)	0	(58,170)	0
Other income (expense), net		(8)	5	(80)	1
Total other (expense) income		(57,828)	109	(57,480)	140
Loss before income tax expense		(217,074)	(22,314)	(235,532)	(46,724)
Income tax (expense) benefit		(7)	(9)	29	(35)
Net loss		$ (217,081)	$ (22,323)	$ (235,503)	$ (46,759)
Net loss per share, basic		$ (2.27)	$ (0.27)	$ (2.48)	$ (0.63)
Net loss per share, diluted		$ (2.27)	$ (0.27)	$ (2.48)	$ (0.63)
Weighted-average common shares outstanding, basic		95,565,118	82,209,032	94,917,487	73,650,146
Weighted-average common shares outstanding, diluted		95,565,118	82,209,032	94,917,487	73,650,146
Development Fee and Royalty [Member]
Revenue:
Total revenue		$ 688	$ 625	$ 886	$ 1,987

[1] Includes $1.4 million and no related party expense, for the three and six months ended June 30, 2023 and 2022, respectively.