Company Operations by Product, Customer and Geographic Area - Revenue by Significant Customer (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Total product sales and services	$ 147,222	$ 172,288	$ 12,193
License and research revenue	3,024	721	2,782
Total	150,246	173,009	14,975
Wholesaler Customer
Segment Reporting Information [Line Items]
Total product sales and services	147,222	172,288	12,193
License and research revenue	3,024	721	2,782
Total	150,246	173,009	14,975
Customer A | Wholesaler Customer
Segment Reporting Information [Line Items]
Total product sales and services	51,648	53,988	3,937
Customer B | Wholesaler Customer
Segment Reporting Information [Line Items]
Total product sales and services	39,359	60,420	3,859
Customer C | Wholesaler Customer
Segment Reporting Information [Line Items]
Total product sales and services	30,916	43,434	3,563
Customer D | Wholesaler Customer
Segment Reporting Information [Line Items]
Total product sales and services	17,728	0	0
Other | Wholesaler Customer
Segment Reporting Information [Line Items]
Total product sales and services	$ 7,571	$ 14,446	$ 834