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Mortgage Loans Payable And Credit Facility (Summary Of The Derivative Financial Instruments Held) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
contract
Dec. 31, 2012
contract
Derivatives, Fair Value [Line Items]    
Count 1 3
Notional values $ 11,894,000 [1] $ 31,417,000 [1]
Maturity date 2018  
Fair value 647,000 1,577,000
Mortgage loans payable - real estate held for sale/conveyance 22,848,000 39,306,000
Interest Rate Swap [Member]
   
Derivatives, Fair Value [Line Items]    
Mortgage loans payable - real estate held for sale/conveyance $ 11,900,000 $ 12,200,000
[1] For the years ended December 31, 2013 and 2012, $11.9 million and $12.2 million, respectively, are included in mortgage loans payable - real estate held for sale/conveyance on the consolidated balance sheets.