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Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Total revenue, net	$ 52,643	$ 45,241	$ 96,561	$ 79,878
Less: Cost of goods sold	12,846	11,401	23,494	19,599
Gross margin	39,797	33,840	73,067	60,279
Operating expenses:
Selling, general and administrative	53,944	31,545	97,350	65,716
Research and development	18,159	13,694	29,921	24,517
Total operating expenses	72,103	45,239	127,271	90,233
Operating loss	(32,306)	(11,399)	(54,204)	(29,954)
Interest expense, net	(1,773)	(2,315)	(4,025)	(4,696)
Other (expense) income, net	(131)	80	(76)	75
Loss from operations before taxes	(34,210)	(13,634)	(58,305)	(34,575)
Net loss	$ (34,210)	$ (13,634)	$ (58,305)	$ (34,575)
Loss per share:
Basic	$ (0.12)	$ (0.05)	$ (0.20)	$ (0.13)
Diluted	$ (0.12)	$ (0.05)	$ (0.20)	$ (0.13)
Weighted average shares:
Basic	293,662	270,725	289,458	270,445
Diluted	293,662	270,725	289,458	270,445
Product Revenue, Net
Total revenue, net	$ 52,537	$ 44,948	$ 96,313	$ 79,292
Licensing Revenue
Total revenue, net	$ 106	$ 293	$ 248	$ 586

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