Derivative Instruments and Hedging Activities - (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Derivative [Line Items]
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ 300	$ 203
Derivative, Notional Amount	3,785		$ 5,423
Derivative Asset, Fair Value, Gross Liability	$ 385
Derivative Asset, Fair Value, Gross Asset			$ 85