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Debt of the Company (Details) (USD $) | Dec. 31, 2014 | Dec. 31, 2013
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Tanger Factory Outlet Centers, Inc [Member] |  |
Line of Credit Facility [Line Items] |  |
Unsecured lines of credit | $ 111,000,000us-gaap_LineOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 16,200,000us-gaap_LineOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Tanger Properties Limited Partnership [Member] |  |
Line of Credit Facility [Line Items] |  |
Unsecured lines of credit | 111,000,000us-gaap_LineOfCredit / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 16,200,000us-gaap_LineOfCredit / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Debt [Member] | Tanger Factory Outlet Centers, Inc [Member] | Line of Credit [Member] |  |
Line of Credit Facility [Line Items] |  |
Unsecured lines of credit total borrowing capacity | 520,000,000us-gaap_GuaranteeObligationsMaximumExposure / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_UnderlyingAssetClassAxis = us-gaap_DebtMember |
Debt [Member] | Tanger Factory Outlet Centers, Inc [Member] | Unsecured Term Loan [Member] |  |
Line of Credit Facility [Line Items] |  |
Guarantor obligations, current carrying value | 250,000,000us-gaap_GuaranteeObligationsCurrentCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = skt_UnsecuredTermLoanMember / us-gaap_UnderlyingAssetClassAxis = us-gaap_DebtMember |
Debt [Member] | Tanger Properties Limited Partnership [Member] | Line of Credit [Member] |  |
Line of Credit Facility [Line Items] |  |
Unsecured lines of credit | 111,000,000us-gaap_LineOfCredit / dei_LegalEntityAxis = us-gaap_SubsidiariesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_UnderlyingAssetClassAxis = us-gaap_DebtMember | 16,200,000us-gaap_LineOfCredit / dei_LegalEntityAxis = us-gaap_SubsidiariesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_UnderlyingAssetClassAxis = us-gaap_DebtMember
Ocean City Factory Outlets [Member] | Debt [Member] | Tanger Factory Outlet Centers, Inc [Member] | Mortgages [Member] |  |
Line of Credit Facility [Line Items] |  |
Guarantor obligations, current carrying value | $ 17,900,000us-gaap_GuaranteeObligationsCurrentCarryingValue / us-gaap_DebtInstrumentAxis = skt_OceanCityFactoryOutletsMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_UnderlyingAssetClassAxis = us-gaap_DebtMember |

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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Details
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Period Type: | duration

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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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