Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity of the Company (Details)

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Shareholders' Equity of the Company (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Tanger Factory Outlet Centers, Inc [Member]
   
Entity Information [Line Items]    
Exchange of Operating Partnership units for common shares 3,545 6,730,028
Common shares issued in exchange for Operating Partnership units 14,180 1,682,507
Potential number of common shares to be issued upon conversion of operating units 4,747,684  
Tanger Properties Limited Partnership [Member]
   
Entity Information [Line Items]    
Number of Operating Partnership units owned by family limited partners 1,186,921