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Equity-Based Compensation of the Operating Partnership Equity-Based Compensation Expense (Details) (USD $) Share data in Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 Units | Dec. 31, 2011 | Dec. 31, 2010
Tanger Properties Limited Partnership [Member] |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |
Equity-based Compensation Arragement by Equity-based Payment Award, Number of Units Authorized | 3,850,000 |  |
Equity-based Compensation Arragement by Equity-based Payment Award, Number of Units Available for GRant | 886,355 |  |
Equity-based Compensation | $ 10,664,000 | $ 7,291,000 | $ 5,848,000
Employee Service Equity 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 |  |
Equity-based Compesnation, Allocation of Recognized Period Costs Capitalized Amount | 368,000 | 234,000 | 393,000
Tanger Properties Limited Partnership [Member] | Restricted Units [Member] |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |
Equity-based Compensation | 8,485,000 | 5,227,000 | 4,095,000
Tanger Properties Limited Partnership [Member] | Notional Unit Performance Awards [Member] |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |
Equity-based Compensation | 1,970,000 | 1,885,000 | 1,753,000
Tanger Properties Limited Partnership [Member] | Options [Member] |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |
Equity-based Compensation | 209,000 | 179,000 | 0
Tanger Factory Outlet Centers, Inc [Member] |  |  |
Equity-Based Compensation Expense by Award Type [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 15.4 |  |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition | 3 years 5 months 5 days |  |
Fully Vested [Member] | Tanger Properties Limited Partnership [Member] | Restricted Units [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 |  |

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- Definition Employee Service Equity Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized + References No definition available. + Details
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- Definition Equity-based Compensation Arragement by Equity-based Payment Award, Number of Units Authorized + 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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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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