Other Comprehensive Income (Loss) (Components And Allocated Tax Effects Of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Comprehensive Income (Loss) Components and Tax Effects [Line Items]
Net change in foreign currency translation adjustment, before Tax	$ (21,586)	$ 4,363
Net unrealized gain (loss) on hedging instruments	(13,324)	13,948
Net change in foreign currency translation adjustment, tax	(4,627)	905
Net unrealized gain (loss) on hedging instruments, tax expense (benefit)	(3,398)	3,557
Net change in foreign currency translation, net of tax	(16,959)	3,458
Net unrealized gain (loss) on hedging instruments, after tax	(9,926)	10,391
Reclassification Adjustment from AOCI, before Tax	(42)	(74)
Gain (Loss) Arising During Period, Tax	(4)	0
Gain (Loss) Arising During Period, after Tax	(38)	(74)
Other Comprehensive Income (Loss), before Tax	(34,952)	18,237
Other Comprehensive Income (Loss), Tax	(8,029)	4,462
Other comprehensive income (loss), net of tax	$ (26,923)	$ 13,775