Derivative Instruments And Hedging Activities (Gain Loss Recognized In Income On Hedged Derivatives) (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		$ (648)	$ (1,969)	$ (572)
Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	[1]	$ (648)	$ (1,969)	$ (572)

[1] Gain/(loss) recognized in income is included in cost of goods sold.