DEBT Schedule of Debt Maturities (Details) (USD $)	Jun. 30, 2013
Debt Instrument [Line Items]
July 1, 2013 through December 31, 2013	$ 1,800,000
2014	3,739,000
2015	86,075,000
2016	1,647,000
2017	1,688,000
Thereafter	459,430,000
Total	554,379,000
Mortgage Indebtedness [Member]
Debt Instrument [Line Items]
July 1, 2013 through December 31, 2013	1,800,000	[1]
2014	3,739,000	[1]
2015	86,075,000	[1]
2016	1,647,000	[1]
2017	1,688,000	[1]
Thereafter	48,180,000	[1]
Total	143,129,000	[1]
Senior Notes [Member]
Debt Instrument [Line Items]
July 1, 2013 through December 31, 2013	0
2014	0
2015	0
2016	0
2017	0
Thereafter	411,250,000
Total	411,250,000
Debt Instrument, Unamortized Premium	$ 3,400,000

[1] (1) Outstanding principal balance for the senior notes does not include premium of $3.4 million as of June 30, 2013.