Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical)

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CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Tanger Properties Limited Partnership [Member]
    
Common distributions (in dollars per share) 0.84 3.32
Common units issued upon exercise of options 1,800 9,425
Restricted units granted, net of forfeitures 84,343 141,500
Tanger Factory Outlet Centers, Inc [Member]
    
Issuance of common shares upon exercise of options 7,200 37,700
Grant of restricted shares, net of forfeitures 337,373 566,000
Dividends paid per common share (in dollars per share) $ 0.21 $ 0.8300
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