Financial Instruments (Schedule Of Loss Recognized In AOCI And The Amount Of Gain (Loss) Reclassified Into Earnings) (Details) - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest Expense [Member]
Amount of (Loss) Gain Reclassified from AOCL into Income	$ (1,532)	$ 1,056	$ (835)	$ 4,430
Foreign Currency Losses, Net [Member]
Amount of (Loss) Gain Reclassified from AOCL into Income	(9,825)	9,497	(10,407)	11,275
Interest Rate Swap [Member] | Interest Expense [Member]
Amount of Gain (Loss) Recognized in AOCL	(975)	(2,328)	(15,783)	(13,248)
Amount of (Loss) Gain Reclassified from AOCL into Income	(1,648)	(363)	(2,970)	(149)
Cross Currency Swaps [Member] | Interest Expense [Member]
Amount of Gain (Loss) Recognized in AOCL	(10,286)	10,750	(8,930)	11,122
Amount of (Loss) Gain Reclassified from AOCL into Income	116	1,419	2,135	4,579
Cross Currency Swaps [Member] | Foreign Currency Losses, Net [Member]
Amount of (Loss) Gain Reclassified from AOCL into Income	$ (9,825)	$ 9,497	$ (10,407)	$ 11,275