Quarterly report pursuant to Section 13 or 15(d)

Deferred Charges, Goodwill And Other Assets, Net (Schedule Of Cash Flow Hedging, Derivative Financial Instruments On The Income Statement) (Details)

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Deferred Charges, Goodwill 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, 2021
Mar. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]    
Total Amount of Interest Expense presented in the consolidated statements $ (17,610) $ (20,918)
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member] | Cash Flow Hedging [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Total Amount of Interest Expense presented in the consolidated statements $ (17,610) (20,918)
Designated as Hedging Instrument [Member] | Interest Rate Swaps [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   $ 16