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 $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Tanger Properties Limited Partnership [Member]
   
Schedule of Components of Basic and Diluted Earnings Per Unit [Line Items]    
Net income attributable to partners of the Operating Partnership $ 16,228 $ 8,841
Less allocation of earnings to participating securities (194) (158)
Net income available to common shareholders $ 16,034 $ 8,683
Basic weighted average common units 24,472,000 24,382,000
Effect of notional units 201,000 274,000
Effect of outstanding options and restricted common units 27,000 16,000
Diluted weighted average common units 24,700,000 24,672,000
Net income, basic (in dollars per share) $ 0.66 $ 0.36
Net income, diluted (in dollars per share) $ 0.65 $ 0.35
Antidilutive securities excluded from computation of earnings per share 0 43,650