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Equity-Based Compensation - Share-Based Compensation Expense (Details) (Tanger Factory Outlet Centers, Inc [Member], USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended | 0 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 28, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share based compensation expense | $ 14,750us-gaap_ShareBasedCompensation | $ 11,376us-gaap_ShareBasedCompensation | $ 10,676us-gaap_ShareBasedCompensation | [1] |
Restricted Shares [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share based compensation expense | 9,978us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 8,354us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 8,497us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | [1] |
Notional Unit Performance Awards [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share based compensation expense | 4,313us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = skt_NotionalUnitPerformanceAwardsMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,847us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = skt_NotionalUnitPerformanceAwardsMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,970us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = skt_NotionalUnitPerformanceAwardsMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | [1] |
Employee Stock Option [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share based compensation expense | 459us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 175us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 209us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | [1] |
Fully Vested [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of Restricted Common Shares Granted to Company CEO |  |  |  |  | 45,000skt_NumberOfRestrictedCommonSharesGrantedToCompanyCeo / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_VestingTypeAxis = skt_FullyVestedMember
Fully Vested [Member] | Restricted Shares [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share based compensation expense |  |  | $ 1,300us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_VestingTypeAxis = skt_FullyVestedMember |  |
[1] | For the year ended December 31, 2012, includes approximately $1.3 million of compensation expense related to 45,000 common shares that vested immediately upon grant related to the Employment Agreement described above.

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- Definition Number of Restricted Common Shares Granted to Company CEO + References No definition available. + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Details
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- Details
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