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ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Accounts Payable and Accrued Liabilities [Abstract]    
Property taxes payable $ 12,901 $ 12,107
Development costs payable 10,140 7,170
Interest payable 2,660 2,615
Dividends payable on unvested restricted stock 1,588 1,191
Other payables and accrued expenses 8,061 5,831
Accounts payable and accrued expenses $ 35,350 $ 28,914