DEBT Schedule of Debt Maturities (Details) (USD $)	Sep. 30, 2012		Dec. 31, 2011
Debt Instrument [Line Items]
July 1, 2012 through December 31, 2012	$ 936,000
2013	3,851,000
2014	4,058,000
2015	86,442,000
2016	2,065,000
Thereafter	384,673,000
Total	482,025,000
Mortgage Indebtedness [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Premium	500,000		500,000
July 1, 2012 through December 31, 2012	936,000	[1]
2013	3,851,000	[1]
2014	4,058,000	[1]
2015	86,442,000	[1]
2016	2,065,000	[1]
Thereafter	59,673,000	[1]
Total	157,025,000	[1]
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Premium	5,900,000
July 1, 2012 through December 31, 2012	0
2013	0
2014	0
2015	0
2016	0
Thereafter	325,000,000
Total	325,000,000
Amended Secured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
July 1, 2012 through December 31, 2012	0
2013	0
2014	0
2015	0
2016	0
Thereafter	0
Total	$ 0

[1] Outstanding principal balance for mortgage indebtedness does not include mortgage premium of $0.5 million as of September 30, 2012.(2) Outstanding principal balance for Senior Notes does not include premium of $5.9 million as of September 30, 2012.