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Lease Agreements (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Lease Agreements [Abstract]  
Number of commercial buildings leased 3
Number of commercial portions of mixed use communities leased 19
Future minimum rent  
2012 $ 6,778
2013 6,772
2014 6,735
2015 5,404
2016 3,259
Thereafter 16,301
Total future minimum rent $ 45,249