Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Gross Profit [Abstract]
Product revenue, net	$ 16,352	$ 0	$ 25,588	$ 0
Cost of revenue	2,356	0	4,158	0
Gross profit	13,996	0	21,430	0
Operating expenses:
Research and development	8,693	12,263	25,499	36,505
Selling, general and administrative	76,099	23,396	213,981	60,932
Total operating expenses	84,792	35,659	239,480	97,437
Loss from operations	(70,796)	(35,659)	(218,050)	(97,437)
Other (expense) income:
Interest income	3,711	2,720	11,648	4,528
Interest expense	(18,484)	(10,107)	(53,416)	(28,939)
Other (expense) income, net	(8)	(197)	(57)	(174)
Total other expense	(14,781)	(7,584)	(41,825)	(24,585)
Net loss and comprehensive loss	$ (85,577)	$ (43,243)	$ (259,875)	$ (122,022)
Net loss per share, basic	$ (1.32)	$ (0.76)	$ (4.29)	$ (2.48)
Net loss per share, diluted	$ (1.32)	$ (0.76)	$ (4.29)	$ (2.48)
Weighted-average shares of common stock outstanding, basic	64,627,847	56,782,379	60,543,545	49,265,321
Weighted-average shares of common stock outstanding, diluted	64,627,847	56,782,379	60,543,545	49,265,321