Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Product sales	$ 15,286	$ 14,122
Royalty revenue	36,507	9,469
License and other revenue	25,000	6,000
Total revenue	76,793	29,591
Operating expenses:
Cost of product sales	10,765	12,767
Cost of royalty revenue	7,229	1,822
Research and development	7,525	5,521
Selling, general and administrative	18,578	12,128
Gain on sale of asset	0	(1,750)
Total operating expenses	44,097	30,488
Income (Loss) from operations	32,696	(897)
Interest income	3	21
Interest expense	27	1
Interest expense	(27)	0
Total other (expense) income	(24)	20
Income (Loss) before income tax provision	32,672	(877)
Income tax provision	(9,748)	(19)
Net Income (Loss)	$ 22,924	$ (896)
Earnings per share attributable to common stockholders:
Basic (in usd per share)	$ 1.50	$ (0.06)
Diluted (in usd per share)	$ 1.42	$ (0.06)
Weighted average number of common shares outstanding:
Basic (in shares)	15,257,892	15,636,387
Diluted (in shares)	16,165,361	15,636,387