Hedging Instruments ((Loss) Gain Recognized In Other Comprehensive Income On Derivative Instruments (Effective Portion)) (Details) - Derivatives Designated As Hedging Instruments [Member] - Cash Flow Hedges [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in AOCI on Derivative Instruments (Effective Portion), Net of Tax	$ (2,530)	$ (580)	$ (9,059)	$ (2,374)
Foreign Currency Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in AOCI on Derivative Instruments (Effective Portion), Net of Tax	$ (2,530)	$ (580)	$ (9,059)	(2,616)
Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in AOCI on Derivative Instruments (Effective Portion), Net of Tax				$ 242