Derivative Instruments and Hedging Activities - (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Derivative [Line Items]
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ 204	$ 78
Derivative, Notional Amount	4,525		$ 5,423
Derivative Asset, Fair Value, Gross Liability	$ 289
Derivative Asset, Fair Value, Gross Asset			$ 85