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Share-based Compensation of the Company Share-Based Compensation Expense (Details) (USD $)
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12 Months Ended | 3 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||
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Dec. 31, 2012
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2011
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2010
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Restricted Shares [Member]
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Dec. 31, 2011
Restricted Shares [Member]
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Dec. 31, 2010
Restricted Shares [Member]
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Dec. 31, 2012
Independent Director's Shares [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Senior Executive Officer's Shares [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Restricted Shares CEO [Member]
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Dec. 31, 2012
Fully Vested [Member]
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Dec. 31, 2012
Service Condition [Member]
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Dec. 31, 2012
Service and Performance Conditions [Member]
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Mar. 31, 2011
Member Four Exercise Price [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Notional Unit Threshold - 50% of Peer Group [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Notional Unit Threshold - 40% [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Notional Unit Threshold - 50% [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Notional Unit Threshold - 60% [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Options [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2011
Options [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2010
Options [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Notional Unit Performance Awards [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2011
Notional Unit Performance Awards [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2010
Notional Unit Performance Awards [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Restricted Shares [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2011
Restricted Shares [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2010
Restricted Shares [Member]
Tanger Factory Outlet Centers, Inc [Member]
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Dec. 31, 2012
Restricted Shares [Member]
Fully Vested [Member]
Tanger Factory Outlet Centers, Inc [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 15,400,000 | |||||||||||||||||||||||||||||
| Total Options Granted, to Date, Net of Forfeitures | 7,337,760 | |||||||||||||||||||||||||||||
| Total Restricted Shares Granted, To Date, Net of Forfeitures | 3,340,820 | |||||||||||||||||||||||||||||
| Total Number of Common Shares The Could Be Issued Upon Vesting of Notional Units Granted, to Date | 1,176,000 | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 3,545,420 | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 571,000 | 346,000 | 329,000 | 312,750 | ||||||||||||||||||||||||||
| Share-based Payment Award, Equity Instruments, Other Than Options, Grant Date Fair Value | $ 25.44 | |||||||||||||||||||||||||||||
| Number of Restricted Common Shares Granted to Company CEO | 225,000 | 45,000 | 90,000 | 90,000 | ||||||||||||||||||||||||||
| Vesting Period of Restricted Shares Granted to Company CEO | 5 years | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | 0 | 191,500 | ||||||||||||||||||||||||||||
| Exercise Price of Options Granted During the Period | $ 26.06 | |||||||||||||||||||||||||||||
| Share-based Payment Award, Options, Number of Years from Date of Grant Options Expire | 10 years | |||||||||||||||||||||||||||||
| Share-based Payment Award, Options, Percentage of Options Becoming Exerciseable Each Year | 20.00% | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | 3.00% | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 7 years | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | 32.80% | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | 2.90% | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Forfeiture Rate Used, Minimum | 3.00% | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate Used, Maximum | 20.00% | |||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years | 5 years | ||||||||||||||||||||||||||||
| Notional Units, Grants in Period | 392,000 | |||||||||||||||||||||||||||||
| Notional Units Conversion Ratio | 1 | 1 | 2 | 3 | ||||||||||||||||||||||||||
| Share-based Compensation | $ 10,664,000 | $ 7,291,000 | $ 5,848,000 | $ 209,000 | $ 179,000 | $ 0 | $ 1,970,000 | $ 1,885,000 | $ 1,753,000 | $ 8,485,000 | [1] | $ 5,227,000 | $ 4,095,000 | $ 1,300,000 | ||||||||||||||||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount | 368,000 | 234,000 | 393,000 | |||||||||||||||||||||||||||
| Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized | $ 20,000,000 | |||||||||||||||||||||||||||||
| Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition | 3 years 5 months 5 days | |||||||||||||||||||||||||||||
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