Goodwill and Intangible Assets - Net Book Value (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Amortizable intangible assets:
Amortizable intangible assets: Gross Value	$ 68,209	$ 47,309
Amortizable intangible assets: Accumulated Amortization	(45,372)	(31,484)
Amortizable intangible assets: Net Book Value	22,837	15,825
Unamortizable intangible assets:
Unamortizable intangible assets: Goodwill, Gross Value	18,491	18,491
Unamortizable intangible assets: Accumulated Amortization	0	0
Unamortizable intangible assets: Net Book Value	18,491	18,491
In Process Research and Development | Bloxiverz
Amortizable intangible assets:
Amortizable intangible assets: Gross Value	35,248	35,248
Amortizable intangible assets: Accumulated Amortization	(35,248)	(23,498)
Amortizable intangible assets: Net Book Value	0	11,750
In Process Research and Development | Vazculep
Amortizable intangible assets:
Amortizable intangible assets: Gross Value	12,061	12,061
Amortizable intangible assets: Accumulated Amortization	(8,801)	(7,986)
Amortizable intangible assets: Net Book Value	3,260	4,075
Marketing Rights
Amortizable intangible assets:
Amortizable intangible assets: Gross Value	16,600	0
Amortizable intangible assets: Accumulated Amortization	(1,019)	0
Amortizable intangible assets: Net Book Value	15,581	0
Developed Technology
Amortizable intangible assets:
Amortizable intangible assets: Gross Value	4,300	0
Amortizable intangible assets: Accumulated Amortization	(304)	0
Amortizable intangible assets: Net Book Value	$ 3,996	$ 0