Restructuring Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 2,292	$ 597
2015 California manufacturing operations restructuring plan
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	400	$ 2,200
Employee severance | Severance and post employment benefits in connection with Globus Transaction
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	1,900
Scient'x [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred to date	$ 10,600