Derivative Instruments And Hedging Activities - Impact of Derivative Instruments Not Designated as Hedging Instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Earnings on Derivatives	$ (465)	$ 0	$ 2,066	$ 0
Foreign Exchange Contracts [Member] | Other Income (Expense), Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Earnings on Derivatives	$ (465)	$ 0	$ 2,066	$ 0