ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Accounts Payable and Accrued Liabilities [Abstract]
Property taxes payable	$ 6,699	$ 12,107
Development costs payable	7,643	7,170
Interest payable	2,661	2,615
Dividends payable on unvested restricted stock	1,443	1,191
Other payables and accrued expenses	5,493	5,831
Accounts payable and accrued expenses	$ 23,939	$ 28,914