Deferred Charges And Other Assets, Net (Schedule Of Cash Flow Hedging, Derivative Financial Instruments On The Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Total Amount of Interest Expense presented in the consolidated statements	$ (15,025)	$ (17,610)
Not Designated as Hedging Instrument [Member] | Interest Rate Cap [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative	2,182,000
Total Amount of Interest Expense presented in the consolidated statements	(15,025,000)	$ (17,610,000)
Not Designated as Hedging Instrument [Member] | Interest Rate Cap [Member] | Interest Expense [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income	$ 1,000