ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accounts Payable and Accrued Liabilities [Abstract]
Property taxes payable	$ 12,107	$ 9,840
Development costs payable	7,170	5,928
Interest payable	2,615	2,736
Dividends payable on unvested restricted stock	1,191	1,415
Other payables and accrued expenses	5,831	11,286
Accounts payable and accrued expenses	$ 28,914	$ 31,205