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Equity-Based Compensation of the Operating Partnership (Equity-Based Compensation Expense) (Details) (USD $) | 3 Months Ended
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Mar. 31, 2013 | Mar. 31, 2012
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |  |
Number of common shares each Operating Partnership unit is equivalent to | 4 |  |  |
Tanger Properties Limited Partnership [Member] |  |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |  |
Equity-based compensation | $ 2,482,000 |  | $ 3,391,000 |
Total compensation cost not yet recognized | 36,800,000 |  |  |
Period of recognition | 3 years 6 months 1 day |  |  |
Total fair value of restricted units vested during the period | 9,600,000 |  | 7,900,000 |
Restricted Units [Member] | Tanger Properties Limited Partnership [Member] |  |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |  |
Equity-based compensation | 1,924,000 | [1] | 2,850,000 | [1]
Restricted Units [Member] | Fully Vested [Member] | Tanger Properties Limited Partnership [Member] |  |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |  |
Equity-based compensation |  |  | 1,300,000 |
Number of restricted units granted to CEO |  |  | 11,250 |
Notional Unit Performance Awards [Member] | Tanger Properties Limited Partnership [Member] |  |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |  |
Equity-based compensation | 506,000 |  | 489,000 |
Options [Member] | Tanger Properties Limited Partnership [Member] |  |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |  |
Equity-based compensation | $ 52,000 |  | $ 52,000 |
[1] | For the three months ended March 31, 2012, includes approximately $1.3 million of compensation expense related to 11,250 units issued related to a restricted share grant that vested immediately upon grant under the terms of the Employment Agreement for Steven B. Tanger, our President and Chief Executive Officer.

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- Definition Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value + References No definition available. + Details
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- Definition Number of Common Shares Each Operating Partnership Unit is Equivalent To + References No definition available. + Details
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- Definition Number of Restricted Units Granted to CEO + References No definition available. + Details
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