Derivative Instruments (Schedule Of Realized (Gains) Losses On Derivatives Recognized In Statement Of Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Designated as Hedging Instrument [Member] | Derivatives Designated As Cash Flow Hedges [Member] | Foreign Currency Derivatives [Member] | Cost Of Goods Sold/Other Expense (Income) / Revenue [Member]
Derivative [Line Items]
Amount of (Gain)/Loss Recognized (Effective Portion)	$ 27	$ (284)	$ 328	$ (190)
Designated as Hedging Instrument [Member] | Derivatives Designated As Cash Flow Hedges [Member] | Commodity Forward Derivatives [Member] | Cost of Sales [Member]
Derivative [Line Items]
Amount of (Gain)/Loss Recognized (Effective Portion)	(503)	460	26	137
Not Designated As Hedging Instrument [Member] | Derivatives Designated As Fair Value Hedges [Member] | Foreign Currency Derivatives [Member] | Cost Of Goods Sold/Other Expense (Income) [Member]
Derivative [Line Items]
Amount of (Gain)/Loss Recognized (Effective Portion)	$ 130	$ 360	$ (61)	$ (1,421)