Fair Value Of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2010
Fair Value Of Financial Instruments [Abstract]  
Summary Of Fair Value Information Of Financial Instruments
     December 31,
2010		     December 31,
2009		  

Asset (Liability)

    Book
Value		     Fair
Value		     Book
Value		     Fair
Value		  

Interest and rent receivables

    $ 26,176      $ 20,265      $ 19,845      $ 16,712   

Loans

      215,985        209,126        311,006        299,123   

Debt, net

      (369,970 )      (359,910 )      (576,678 )      (547,242 )