CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Product revenues, net	$ 73,061	$ 3,560	$ 136,810	$ 5,732
Costs and expenses
Cost of product revenues	46,838	577	89,944	948
Research and development	2,237	2,179	4,505	4,309
Selling, general and administrative	31,279	22,062	62,861	44,909
Total costs and expenses	80,354	24,818	157,310	50,166
Loss from operations	(7,293)	(21,258)	(20,500)	(44,434)
Interest expense	(6,158)		(11,858)
Interest income	391	137	646	235
Net loss	$ (13,060)	$ (21,121)	$ (31,712)	$ (44,199)
Loss per share - basic and diluted	$ (0.40)	$ (0.72)	$ (0.96)	$ (1.50)
Weighted-average shares - basic and diluted	32,967,718	29,441,514	32,935,873	29,396,143