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Debt (Maturities Of Debt) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Debt Instrument [Line Items]    
2012 $ 2,018 [1]  
2013 1,586 [1]  
2014 1,507 [1]  
2015 18,188 [1]  
2016    [1]  
Thereafter 30,159 [1]  
Total 53,458 [1] 54,651
Debt [Member]
   
Debt Instrument [Line Items]    
Total 53,458 54,651
Debt defeased in connection with sale of Company's office portfolio $ 23,299 $ 25,281
[1] (a) Includes debt defeased in connection with the sale of the Company's office portfolio in the amount of $23.3 million.