Deferred Charges, Goodwill And Other Assets, Net (Schedule Of Fair Value Of The Derivative Financial Instruments) (Details) - Cash Flow Hedging [Member] - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Accounts Payable, Accrued Expenses And Other Liabilities [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Liability Derivatives $ 7,528  
Not Designated as Hedging Instrument [Member] | Interest Rate Cap [Member] | Deferred Charges, Goodwill And Other Assets [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives   $ 2