Commitments and Contingencies Contingent Consideration (Acquisitions) (Details) $ in Thousands, € in Millions		3 Months Ended	12 Months Ended
	Mar. 18, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 EUR (€)	Aug. 31, 2013 USD ($)	Aug. 31, 2013 EUR (€)	May 31, 2013 USD ($)
Business Acquisition, Contingent Consideration [Line Items]
Change in amount of contingent consideration, liability	$ 400		$ 353
Current portion of contingent consideration		$ 2,826	2,826	$ 1,286
Contingent consideration non-current portion		2,349	2,349	4,230
Andiatec Acquisition [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration non-current portion		100	100
Bio Helix [Member]
Business Acquisition, Contingent Consideration [Line Items]
Change in amount of contingent consideration, liability			600	21	$ 800
Payments for Royalties			200	100
Contingent consideration									$ 10,000
Current portion of contingent consideration		2,700	2,700
Contingent consideration non-current portion				1,900
Maximum [Member] | Andiatec Acquisition [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration							$ 500	€ 0.5
Minimum [Member] | Bio Helix [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration									$ 5,000
Research and Development Arrangement [Member]
Business Acquisition, Contingent Consideration [Line Items]
Milestone Payments Made Under Agreement			900	1,700
Research and Development Arrangement [Member] | Andiatec Acquisition [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration		3,100	3,100			€ 3.0
Fair Value, Inputs, Level 3 [Member]
Business Acquisition, Contingent Consideration [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings		$ 100	$ 485	$ 100	$ 900