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MORTGAGES, NOTES AND LOANS PAYABLE (Details) (USD $)
Mar. 31, 2013
Dec. 31, 2012
Mortgages, notes and loans payable    
Total mortgages, notes and loans payable $ 696,761,000 $ 688,312,000
Collateralized mortgages, notes and loans payable
   
Mortgages, notes and loans payable    
Fixed-rate debt: 158,610,000 158,636,000
Variable-rate debt: 491,894,000 479,964,000
Amount of variable-rate debt swapped to fixed rate 172,000,000  
Special Improvement District bonds
   
Mortgages, notes and loans payable    
Fixed-rate debt: 46,257,000 49,712,000
Total mortgages, notes and loans payable $ 46,257,000 $ 49,712,000