Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Statutory rate applied to pre-tax loss	$ (41,750)	$ (88,086)	$ (697)
State income taxes, net of federal benefit	24	(1,269)	(1,287)
Foreign	442	287	491
Revaluation of contingent purchase price	8,393	9,740	1,153
Tax credits	(967)	(305)	(2,598)
Lobbying costs	0	35	60
Acquisition costs	0	0	198
Meals and entertainment	613	824	501
Uncertain tax positions	(2,064)	61	(101)
Bargain purchase	0	(7,310)	0
Loss on extinguishment of debt	1,403	0	0
Loss on ACC goodwill	11,834	0	0
Other	(776)	1,223	2,680
Loss on sale of Hemostasis Business	(105,045)	0	0
Deferred tax asset adjustment	4,793	0	(2,709)
Valuation allowances	123,170	55,057	0
Income tax benefit	$ 70	$ (29,743)	$ (2,309)