Derivatives (Schedule Of Gains (Losses) Recorded In Accumulated Other Comprehensive Income And The Consolidated Statements Of Income) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Amount of loss recognized in OCI (effective portion)		$ (4,274)	$ (1,614)
Amount of loss reclassified from OCI to interest expense	[1]	510	69
Cash Flow Hedging [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of loss recognized in OCI (effective portion)		4,274	1,614
Amount of loss reclassified from OCI to interest expense		$ 510	$ 69

[1] Represents the net interest expense recorded on derivative transactions and included in the consolidated statements of income under “Interest expense.”