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Quarterly Financial Data of the Company (Unaudited) - Narrative (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Debt Instrument [Line Items] |  |  |  |  |
Gain on sale of real estate |  |  | $ 7,513us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal |  |
Tanger Factory Outlet Centers, Inc [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Gain on sale of real estate | 7,500us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 7,513us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Loss on early extinguishment of debt | 13,100us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (13,140)us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Gain on previously held interest in acquired joint venture |  | $ 26,000us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 0us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 26,002us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 0us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / dei_LegalEntityAxis = us-gaap_ParentCompanyMember

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- Definition In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + 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 (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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