Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Total revenue	$ 235,637	$ 228,031	$ 253,155
Operating costs and expenses:
Cost of sales	62,682	55,093	63,701
Selling, general and administrative	89,933	89,978	116,294
Research and development	50,382	52,240	71,870
In-process research and development expenses	0	7,000	0
Total operating costs and expenses	202,997	204,311	251,865
Income from operations	32,640	23,720	1,290
Other income (expenses):
Interest income	2,605	813	160
Interest expense	(13,330)	(11,592)	(12,807)
Legal verdict expense	0	(12,456)	(9,591)
Loss on debt extinguishment	0	0	(8,146)
Other income (expense)	759	(28)	292
Total other expenses, net	(9,966)	(23,263)	(30,092)
Net income (loss) before income taxes	22,674	457	(28,802)
Income tax expense	(1,083)	(455)	(324)
Net income (loss)	$ 21,591	$ 2	$ (29,126)
Net income (loss) per share of common stock—basic (in dollars per share)	$ 0.46	$ 0	$ (0.72)
Net income (loss) per share of common stock—diluted (in dollars per share)	$ 0.45	$ 0	$ (0.72)
Weighted-average shares of common stock outstanding—basic (in shares)	47,134,331	44,674,501	40,638,852
Weighted-average shares of common stock outstanding—diluted (in shares)	47,550,852	44,929,998	40,638,852
Product [Member]
Total revenue	$ 203,107	$ 200,023	$ 189,064
License [Member]
Total revenue	0	0	51,750
Royalty [Member]
Total revenue	$ 32,530	$ 28,008	$ 12,341