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Fair Value (Details) € in Thousands, $ in Thousands	12 Months Ended
Fair Value (Details) € in Thousands, $ in Thousands	Dec. 31, 2016 USD ($) Forward_Contracts	Dec. 31, 2015 USD ($) Forward_Contracts	Dec. 31, 2014 USD ($)	Dec. 31, 2016 EUR (€) Forward_Contracts
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number \| Forward_Contracts	4	13		4
Brazilian Real/Euro [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number \| Forward_Contracts	3			3
Contract Amount \| €				€ 0
Euro U S Dollar [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number \| Forward_Contracts	1			1
Contract Amount	$ 74
Maximum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unrealized foreign exchange gain (loss)	(600)	$ 500	$ 700
Forward Contracts [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value liability of derivative forward contracts	100
Fair value asset of derivative forward contracts		$ 200
Downstream [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value of the contingent consideration	$ 12,200