CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023		Jun. 30, 2022	Jun. 30, 2023		Jun. 30, 2022
Operating expenses:
General and administrative	$ 10,658		$ 7,365	$ 19,811		$ 13,586
Total operating expenses	45,257		26,305	85,290		46,203
Loss from operations	(45,257)		(26,305)	(85,290)		(46,203)
Other income (expense):
Change in fair value of short-term investment — related party	263		(3,723)	(1,438)		(8,208)
Other income, net	2,640		238	4,775		249
Total other income (expense), net	2,903		(3,485)	3,337		(7,959)
Net loss before income taxes	(42,354)		(29,790)	(81,953)		(54,162)
(Provision for) benefit from income taxes	(31)		442	171		974
Net loss	(42,385)		(29,348)	(81,782)		(53,188)
Cumulative dividend on preferred stock	0		(6,293)	0		(12,517)
Net loss attributable to common stockholders	(42,385)		(35,641)	(81,782)		(65,705)
Net loss attributable to common stockholders, diluted	$ (42,385)		$ (35,641)	$ (81,782)		$ (65,705)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.47)		$ (1.76)	$ (0.91)		$ (3.31)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.47)		$ (1.76)	$ (0.91)		$ (3.31)
Weighted-average common shares outstanding, diluted (in shares)	90,467,298		20,227,343	89,769,970		19,871,750
Weighted-average common shares outstanding, basic (in shares)	90,467,298		20,227,343	89,769,970		19,871,750
Comprehensive loss:
Net loss	$ (42,385)		$ (29,348)	$ (81,782)		$ (53,188)
Change in unrealized loss on investments, net of tax	(63)		(118)	116		(123)
Comprehensive loss	(42,448)		(29,466)	(81,666)		(53,311)
Nonrelated Party
Operating expenses:
Research and development	$ 34,599	[1]	$ 18,940	$ 65,479	[1]	$ 32,617

[1] (1) Includes related party amount of $0.3 million and $0.6 million for the three and six months ended June 30, 2023, respectively.