Derivative Financial Instruments Derivative Financial Instruments (Schedule Of Gains And Losses Related To Derivative Instruments Not Designated) (Details) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (3,169)	$ 1,720
Interest Expense [Member] | Interest Rate Swap [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(1,285)	569
Other Income [Member] | Foreign Exchange Option [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(1,754)	1,151
Other Income [Member] | Foreign Exchange Forward [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (130)	$ 0