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
Revenue:
Total revenue	$ 74,136	$ 48,124	$ 190,010	$ 89,373
Operating expenses:
Cost of product sales	21,171	7,907	46,347	16,349
Cost of royalty revenue	2,493	2,850	5,072	5,263
Research and development	11,437	9,911	17,545	24,199
Selling, general and administrative	36,832	16,636	59,014	36,515
Total operating expenses	71,933	37,304	127,978	82,326
Income from operations	2,203	10,820	62,032	7,047
Interest income	244	163	398	198
Interest expense	(552)	(422)	(918)	(844)
Other (expense) income	(7,763)	(5,013)	(9,720)	487
Total other (expense) income, net	(8,071)	(5,272)	(10,240)	(159)
(Loss) income before income tax provision	(5,868)	5,548	51,792	6,888
Income tax provision	(3,582)	(1,936)	(17,184)	(3,697)
Net (loss) income	$ (9,450)	$ 3,612	$ 34,608	$ 3,191
(Loss) earnings per share attributable to common stockholders:
Basic (in dollars per share)	$ (0.74)	$ 0.28	$ 2.71	$ 0.24
Diluted (in dollars per share)	$ (0.74)	$ 0.27	$ 2.67	$ 0.24
Weighted average number of common shares outstanding:
Basic (in shares)	12,836,116	13,108,998	12,773,727	13,116,370
Diluted (in shares)	12,836,116	13,262,164	12,951,788	13,293,920
Product sales, net
Revenue:
Total revenue	$ 49,201	$ 19,621	$ 139,289	$ 36,741
Royalty revenue
Revenue:
Total revenue	$ 24,935	$ 28,503	$ 50,721	$ 52,632