DEBT Schedule of Debt Maturities (Details) (USD $)	Dec. 31, 2012		Dec. 31, 2011
Debt Instrument
2013	$ 3,946,000
2014	4,146,000
2015	179,022,000
2016	2,138,000
2017	2,230,000
Thereafter	378,340,000
Total	569,822,000
Mortgage Indebtedness
Debt Instrument
Debt Instrument, Unamortized Premium			500,000
2013	3,946,000	[1]
2014	4,146,000	[1]
2015	86,522,000	[1]
2016	2,138,000	[1]
2017	2,230,000	[1]
Thereafter	53,340,000	[1]
Total	152,322,000	[1]
Senior Notes
Debt Instrument
Debt Instrument, Unamortized Premium	5,700,000
2013	0
2014	0
2015	0
2016	0
2017	0
Thereafter	325,000,000
Total	325,000,000
Secured Revolving Credit Facility
Debt Instrument
2013	0
2014	0
2015	92,500,000
2016	0
2017	0
Thereafter	0
Total	$ 92,500,000

[1] Outstanding principal balance for Senior Notes does not include premium of $5.7 million as of December 31, 2012.