Quarterly report pursuant to Section 13 or 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 6 Months Ended 12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Partnership Interest [Member]
          
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items]          
Revenues $ 20,553 $ 11,606 $ 41,948 $ 23,264  
Property operating 8,546 5,083 17,686 9,974  
General and administrative 166 237 314 400  
Acquisition costs 53 0 474 704  
Abandoned development costs 134 436 134 1,310  
Impairment of Real Estate 0 420 0 420  
Depreciation and amortization 7,584 4,300 14,968 8,908  
Total expenses 16,483 10,476 33,576 21,716  
Operating income 4,070 1,130 8,372 1,548  
Interest expense 3,514 3,598 7,566 7,427  
Net income 556 (2,468) 806 (5,879)  
Tanger Factory Outlet Centers, Inc [Member]
          
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items]          
Revenues 91,015 87,335 179,704 171,578  
Property operating 28,821 27,977 56,956 54,065  
General and administrative 9,914 8,699 19,486 18,719  
Acquisition costs 252 0 431 0  
Depreciation and amortization 22,172 24,923 44,460 50,438  
Total expenses 61,159 61,599 121,333 123,222  
Operating income 29,856 25,736 58,371 48,356  
Interest expense 12,583 12,411 25,459 24,745  
Net income 17,776 12,458 34,005 21,292 56,476
The Company and Operating Partnership's share of net income (loss) of unconsolidated joint ventures 503 (867) 1,093 (2,319)  
The Company and Operating Partnership's share of depreciation and impairment charges (real estate related) of unconsolidated joint ventures $ 3,431 $ 1,793 $ 6,604 $ 3,608