Derivative Financial Instruments (Fair Value Of Derivative Instruments Included In Balance Sheets) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Interest Rate Swap [Member] | Accrued Liabilities [Member]
Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value	$ 17	$ 2,388
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	924	0
Interest Rate Swap [Member] | Other Liabilities [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	2,418	4,225
Foreign Exchange Forward [Member] | Accrued Liabilities [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	1,292	914
Foreign Exchange Forward [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	1,520	1,808
Foreign Exchange Forward [Member] | Other Assets [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	2,145	2,141
Foreign Exchange Forward [Member] | Other Liabilities [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	$ 1,561	$ 1,432