Derivative Financial Instruments (Schedule Of Gains And Losses Related To Derivative Instruments Not Designated) (Details) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 2,104	$ (75)
Interest Rate Swap [Member] | Interest Expense [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(238)	(578)
Foreign Exchange Forward [Member] | Other Expense [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	3,234	503
Other Contract [Member] | Other Expense [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (892)	$ 0