Financial Instruments (Gain (Loss) On Net Investment Hedges Recognized In AOCI, Amount Reclassified Into Earnings And Gain Recognized In Income On Derivative) (Details) - Cross Currency Swaps [Member] - Interest Expense [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Amount of Gain (Loss) Recognized in AOCL	$ (7,655)	$ 6,330
Amount of Gain Recognized in Income of Derivative (Amount Excluded from Effectiveness Testing)	$ 1,468	$ 3,688