Annual report pursuant to Section 13 and 15(d)

Investments in Unconcolidated Real Estate Joint Ventures (Details)

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Investments in Unconcolidated Real Estate Joint Ventures (Details) (USD $)
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Schedule of Equity Method Investments [Line Items]    
Tanger's Portion of Asset Impairment Charge $ 300,000  
Equity Method Investment, Ownership Percentage 50.00%  
Equity Method Investment, Other Member, Ownership Percentage 50.00%  
Equity Method Investments 28,500,000 6,400,000
Asset Impairment Charges 900,000 1,000,000
Deer Park [Member]
    
Schedule of Equity Method Investments [Line Items]    
Joint Venture Formation Date October 2003  
Equity Method Investment, Ownership Percentage 33.30%  
Square Footage of Real Estate Property 656,788  
Equity Method Investments 5,400,000  
Secured Debt 246,900  
Deer Park Warehouse [Member]
    
Schedule of Equity Method Investments [Line Items]    
Joint Venture Formation Date June 2008  
Business Acquisition, Cost of Acquired Entity, Purchase Price 3,300,000  
Equity Method Investment, Ownership Percentage 33.30%  
Square Footage of Real Estate Property 29,253  
Equity Method Investments 0  
Asset Impairment Charges 900,000  
Secured Debt 2,300  
Wisconsin Dells [Member]
    
Schedule of Equity Method Investments [Line Items]    
Joint Venture Formation Date March 2005  
Equity Method Investment, Ownership Percentage 50.00%  
Square Footage of Real Estate Property 265,086  
Equity Method Investments 4,000,000  
Secured Debt 24,300  
Houston [Member]
    
Schedule of Equity Method Investments [Line Items]    
Joint Venture Formation Date June 30, 2011  
Equity Method Investment, Ownership Percentage 50.00%  
Square Footage of Real Estate Property 0  
Purchase of Land, Date Jul. 27, 2011  
Purchase Price of Land Acquired 5,600,000  
Company Portion of Contributed Capital to the Joint Venture 7,800,000  
Equity Method Investments 8,000,000  
Secured Debt 0  
Number of Stores 90  
Phase One Square Footage 350,000  
Estimated Square Footage of Real Estate Property When Completed 470,000  
RioCan Canda [Member]
    
Schedule of Equity Method Investments [Line Items]    
Joint Venture Formation Date July 2011  
Equity Method Investment, Ownership Percentage 50.00%  
Square Footage of Real Estate Property 159,391  
Company Portion of Contributed Capital to the Joint Venture 1,022,000  
Equity Method Investments 10,000,000  
Secured Debt 29,700  
National Harbor [Member]
    
Schedule of Equity Method Investments [Line Items]    
Joint Venture Formation Date May 2011  
Equity Method Investment, Ownership Percentage 50.00%  
Square Footage of Real Estate Property 0  
Company Portion of Contributed Capital to the Joint Venture 850,000  
Secured Debt 0  
Estimated Square Footage of Real Estate Property When Completed 350,000  
Other Equity Method Investee [Member]
    
Schedule of Equity Method Investments [Line Items]    
Equity Method Investments 0  
Secured Debt 0  
Mortgage Loan [Member] | Wisconsin Dells [Member]
    
Schedule of Equity Method Investments [Line Items]    
Long-term Debt, Original Borrowing Amount 25,300,000  
Debt Instrument, Maturity Date, Description December 2012  
Debt Instrument, Interest Rate Terms LIBOR plus 3.00%  
Guarantor Obligations, Maximum Exposure, Percentage of Principal in Addition to Interest Costs 50.00%  
Secured Debt 24,300,000  
Mortgage Loan and Mezzanine Loan Combined [Member] | Deer Park [Member]
    
Schedule of Equity Method Investments [Line Items]    
Debt Instrument, Maturity Date May 17, 2014  
Mezzanine Loan [Member] | Deer Park [Member]
    
Schedule of Equity Method Investments [Line Items]    
Debt Instrument, Interest Rate Terms LIBOR plus 5.00%  
Secured Debt 15,000,000  
Senior Loans [Member] | Deer Park [Member]
    
Schedule of Equity Method Investments [Line Items]    
Payment on Senior Loan to be Paid Upon Closing of Debt Agreement 20,000,000  
Debt Instrument, Interest Rate Terms LIBOR plus 3.50%  
Secured Debt 231,900,000  
Tanger's Portion of Senior Loan Payment 6,400,000  
Total of Cash Contributed to the JV to Make the Mortgage Payment, Net of Cash on Hand 19,200,000  
Warehouse Mortgage [Member] | Deer Park Warehouse [Member]
    
Schedule of Equity Method Investments [Line Items]    
Secured Debt 2,300,000  
Debt Instrument, Maturity Date May 17, 2011  
Debt Instrument, Debt Default, Interest Rate 8.25%  
Cookstown Property [Member] | RioCan Canda [Member]
    
Schedule of Equity Method Investments [Line Items]    
Business Acquisition, Debt Assumed, Stated Interest Rate 5.10%  
Business Acquisition, Cost of Acquired Entity, Purchase Price 61,200,000  
Business Acquisition, Effective Date of Acquisition December 9, 2011  
Business Acquisition, Amount of Cash Paid and Debt Assumed 47,400,000  
Business Acquisition, Contingent Consideration, Potential Cash Payment 13,800,000  
Business Acquisition, Purchase Price Allocation, Liabilities Assumed $ 29,600,000  
Business Acquisition, Debt Assumed, Maturity Date Jun. 21, 2014