Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Unit of the Operating Partnership (Details)

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Earnings Per Unit of the Operating Partnership (Details) - Tanger Properties Limited Partnership [Member] - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Numerator:        
Net income (loss) attributable to partners of the Operating Partnership $ (23,031) $ (16,034) $ 25,222 $ 38,427
Less allocation of earnings to participating securities (313) (306) (889) (907)
Net income (loss) available to common shareholders/unitholders $ (23,344) $ (16,340) $ 24,333 $ 37,520
Denominator:        
Basic weighted average common shares (in shares) 98,104,000 98,951,000 98,344,000 99,809,000
Effect of outstanding options and restricted common shares (in shares) 0 0 0 23,000
Diluted weighted average common shares (in shares) 98,104,000 98,951,000 98,344,000 99,832,000
Basic earnings per common share/unit:        
Net income (loss), basic (in dollars per share) $ (0.24) $ (0.17) $ 0.25 $ 0.38
Diluted earnings per common unit:        
Net income (loss), diluted (in dollars per share) $ (0.24) $ (0.17) $ 0.25 $ 0.38
Antidilutive incremental common shares attributable to notional units excluded from computation of earnings per share (in units) 1,013,383 858,116 1,013,383 858,116
Antidilutive securities excluded from computation of earnings per share (in shares) 547,000 235,700 547,000 173,500