CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Net product sales	$ 42,056	$ 36,029	$ 79,471	$ 69,291
Total revenues	42,056	36,029	79,471	69,291
Operating expenses:
Cost of goods sold, excluding amortization	4,529	6,494	8,532	12,450
Research and development	7,648	6,700	18,215	14,248
Selling, general and administrative	31,371	24,682	61,668	53,972
Intangible asset amortization	432	2,942	886	5,885
Total operating expenses	43,980	40,818	89,301	86,555
Loss from operations	(1,924)	(4,789)	(9,830)	(17,264)
Other income	397	171	677	288
Loss before income taxes	(1,527)	(4,618)	(9,153)	(16,976)
Provision for income taxes	7		26
Net loss	$ (1,534)	$ (4,618)	$ (9,179)	$ (16,976)
Basic and diluted net loss per share	$ (0.03)	$ (0.11)	$ (0.21)	$ (0.39)
Weighted average shares outstanding, basic and diluted	44,718,597	43,202,751	44,559,368	43,153,598