Annual report pursuant to Section 13 and 15(d)

Investments in Unconsolidated Real Estate Joint Ventures Summary Statements of Operations for Unconsolidated Joint Ventures (Details)

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Investments in Unconsolidated Real Estate Joint Ventures Summary Statements of Operations for Unconsolidated Joint Ventures (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Partnership Interest [Member]
                      
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items]                      
Revenues                 $ 54,936 $ 38,847 $ 37,858
Operating Costs and Expenses                 24,678 18,034 18,172
General and Administrative Expense                 970 250 455
Acquisition costs                 1,437 0 0
Abandoned development costs                 1,447 0 0
Impairment of Real Estate                 420 [1] 900 [1] 0 [1]
Depreciation, Depletion and Amortization, Nonproduction                 19,914 14,242 14,245
Total expenses                 48,866 33,426 32,872
Operating Income (Loss)                 6,070 5,421 4,986
Interest Expense                 14,760 10,456 6,947
Net income                 (8,690) (5,035) (1,961)
Tanger Factory Outlet Centers, Inc [Member]
                      
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items]                      
Revenues 94,936 90,483 87,335 84,243 89,140 83,243 72,101 70,739 356,997 315,223 276,303
Operating Costs and Expenses                 111,160 100,246 92,898
General and Administrative Expense                 37,452 30,132 24,553
Acquisition costs                 117 2,736 82
Abandoned development costs                 0 158 365
Impairment of Real Estate                 0 0 735
Depreciation, Depletion and Amortization, Nonproduction                 98,683 84,015 78,039
Total expenses                 247,412 217,287 196,672
Operating Income (Loss) 32,187 29,042 25,736 22,620 28,266 26,177 22,319 21,174 109,585 97,936 79,631
Interest Expense                 49,814 45,382 34,120
Net income 19,014 16,170 12,458 8,834 15,138 14,192 10,842 10,817 56,476 50,989 38,244
Income (Loss) from Equity Method Investments                 (3,295) (1,565) (464)
Equity Method Invesment Company and Operating Partnership Share of Real Estate Related Depreciation                 $ 8,245 [1] $ 5,475 [1] $ 5,146 [1]
[1] (1) The years ended December 31, 2012 and 2011, respectively, includes impairment charges recorded at the Deer Park Warehouse joint venture entity, of which our share is one-third based on our 33.3% ownership percentage. There has been no significant amount of income or expense associated with the activities of this entity in any of the years presented.