Derivatives (Schedule Of Gains (Losses) Recorded In Accumulated Other Comprehensive Income And The Consolidated Statements Of Income) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in OCI (effective portion)		$ (516)	$ 462	$ (4,757)	$ (34)
Amount of loss reclassified from OCI to interest expense	[1]	240	225	423	315
Cash Flow Hedging [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in OCI (effective portion)		(516)	462	(4,757)	(34)
Amount of loss reclassified from OCI to interest expense		$ 240	$ 225	$ 423	$ 315

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