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CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares
1 Months Ended 3 Months Ended
Jan. 31, 2020
Feb. 28, 2019
Jan. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Tanger Factory Outlet Centers, Inc. [Member]          
Grant of restricted common share awards, net of forfeitures (in shares)       241,038 242,167
Shares paid for tax withholding for share based compensation (in shares)       56,597 81,284
Common dividends paid per common share (in dollars per share) $ 0.355   $ 0.35    
Common dividends per common share (in dollars per share) 0.3575 $ 0.355   $ 0.7125 $ 0.705
Tanger Properties Limited Partnership [Member]          
Grant of restricted common share awards, net of forfeitures (in shares)       241,038 242,167
Shares paid for tax withholding for share based compensation (in shares)       56,597 81,284
Common distributions (in dollars per share) 0.355   $ 0.35 $ 0.7125 $ 0.705
Cash dividend declared (in dollars per unit) $ 0.3575 $ 0.355