Divestiture of Stability Biologics, LLC - Summary of Assets Transferred and Consideration Received (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Consideration received
Gain on sale		$ 4,274	$ 0	$ 4,274	$ 0
Goodwill	$ 19,894	19,894		19,894		$ 20,203
Stability Biologics, LLC | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Assets divested
Trade receivables	2,405	2,405		2,405
Inventories	2,800	2,800		2,800
Prepaid expenses and other assets	1,610	1,610		1,610
Goodwill	309	309		309
Intangible assets	11,857	11,857		11,857
Property and equipment, net of accumulated depreciation	1,446	1,446		1,446
Total assets divested	20,427	20,427		20,427
Liabilities divested
Accounts payable and accrued liabilities	3,487	3,487		3,487
Total liabilities divested	3,487	3,487		3,487
Total net assets divested	16,940	$ 16,940		$ 16,940
Transaction costs	400
Consideration received
Non-trade receivable	150
Note receivable	3,190
Intangible assets	630
Extinguishment of earn out liability	17,644
Total consideration received	21,614
Gain on sale	$ 4,274