Annual report pursuant to Section 13 and 15(d)

Development of Rental Properties - Redevelopment of Existing Outlet Centers (Details)

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Development of Rental Properties - Redevelopment of Existing Outlet Centers (Details) (USD $)
In Thousands, unless otherwise specified
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 31, 2011
Sep. 30, 2010
Jun. 30, 2010
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Redevelopment of Rental Properties [Line Items]            
Outlet Center Occupancy Percentage       99.00%    
Net Proceeds from Land Outparcel Sales $ 724 $ 1,400 $ 200 $ 0 $ 0 $ 602
Hilton Head I [Member]
           
Redevelopment of Rental Properties [Line Items]            
Square Footage of Center Under Redevelopment       177,000    
Outlet Center Occupancy Percentage       100.00%