Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Total revenue	$ 59,518	$ 53,384	$ 105,254	$ 151,553
Operating costs and expenses:
Cost of sales	14,918	11,969	25,762	41,527
Selling, general and administrative	20,576	39,410	40,978	67,748
Research and development	11,966	18,638	27,203	38,866
Total operating costs and expenses	47,460	70,017	93,943	148,141
Income (loss) from operations	12,058	(16,633)	11,311	3,412
Other income (expenses):
Interest income	65	121	78	134
Interest expense	(2,702)	(3,518)	(5,366)	(6,968)
Legal verdict (expense) credit	(55)	14,902	(73)	14,717
Other income	62	60	112	102
Total other income (expenses)	(2,630)	11,565	(5,249)	7,985
Net income (loss) before income taxes	9,428	(5,068)	6,062	11,397
Income tax expense	(57)	(38)	(94)	(75)
Net income (loss)	$ 9,371	$ (5,106)	$ 5,968	$ 11,322
Net income (loss) per share of common stock—basic (in dollars per share)	$ 0.21	$ (0.13)	$ 0.14	$ 0.28
Net income (loss) per share of common stock—diluted (in dollars per share)	$ 0.21	$ (0.13)	$ 0.14	$ 0.28
Weighted-average shares of common stock outstanding—basic (in shares)	45,058,924	40,479,577	43,641,193	40,370,825
Weighted-average shares of common stock outstanding—diluted (in shares)	45,358,739	40,479,577	43,889,556	40,939,688
Product [Member]
Revenues:
Total revenue	$ 51,314	$ 48,856	$ 92,032	$ 94,672
License [Member]
Revenues:
Total revenue	0	250	0	50,250
Royalty [Member]
Revenues:
Total revenue	$ 8,204	$ 4,278	$ 13,222	$ 6,631