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Debt of the Operating Partnership (Narrative) (Details) (Tanger Properties Limited Partnership [Member], USD $)
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1 Months Ended | 9 Months Ended | 12 Months Ended | 9 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||
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Sep. 30, 2014
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Dec. 31, 2013
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Sep. 30, 2014
Mortgages [Member]
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Dec. 31, 2013
Mortgages [Member]
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Sep. 30, 2014
Mortgages [Member]
Atlantic City Outlets The Walk [Member]
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Dec. 31, 2013
Mortgages [Member]
Atlantic City Outlets The Walk [Member]
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Dec. 31, 2011
Mortgages [Member]
Atlantic City Outlets The Walk [Member]
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Sep. 30, 2014
Mortgages [Member]
Ocean City Factory Outlets [Member]
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Dec. 31, 2013
Mortgages [Member]
Ocean City Factory Outlets [Member]
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Dec. 31, 2011
Mortgages [Member]
Ocean City Factory Outlets [Member]
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Sep. 30, 2014
Mortgages [Member]
The Outlets at Hershey [Member]
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Dec. 31, 2013
Mortgages [Member]
The Outlets at Hershey [Member]
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Dec. 31, 2011
Mortgages [Member]
The Outlets at Hershey [Member]
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Sep. 30, 2014
Notes Payable [Member]
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Dec. 31, 2013
Notes Payable [Member]
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Dec. 31, 2011
Notes Payable [Member]
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Jul. 31, 2014
Unsecured Term Loan [Member]
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Sep. 30, 2014
Unsecured Term Loan [Member]
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Dec. 31, 2013
Unsecured Term Loan [Member]
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Sep. 30, 2014
Line of Credit [Member]
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Dec. 31, 2013
Line of Credit [Member]
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| Debt Instrument [Line Items] | |||||||||||||||||||||||||||||||
| Effective interest rates | 5.05% | 4.68% | 3.40% | 3.15% | |||||||||||||||||||||||||||
| Basis spread on variable rate | 1.05% | 1.05% | 1.60% | 1.00% | 1.00% | ||||||||||||||||||||||||||
| Principal | $ 1,451,316,000 | $ 1,330,398,000 | $ 46,645,000 | [1] | $ 48,535,000 | [1] | $ 17,921,000 | [1] | $ 18,193,000 | [1] | $ 29,450,000 | [1] | $ 29,970,000 | [1] | $ 10,000,000 | [1] | $ 10,000,000 | [1] | $ 250,000,000 | $ 250,000,000 | $ 139,800,000 | $ 16,200,000 | |||||||||
| Collateral for mortgages payable | 531,800,000 | 566,700,000 | |||||||||||||||||||||||||||||
| Line of credit, Maximum borrowing capacity | 520,000,000 | ||||||||||||||||||||||||||||||
| Line of Credit Facility, Liquidity Line, Maximum Borrowings, Included in Total Line of Credit Maximum Borrowings | 20,000,000 | ||||||||||||||||||||||||||||||
| Line of Credit Facility, Syndicataed Line, Maximum Borrowings, Included in Total Line of Credit Maximum Borrowings | 500,000,000 | ||||||||||||||||||||||||||||||
| Line of Credit Facility, Syndicated Line, Potential Maximum Borrowings if Accordian Feature is Utilized | $ 750,000,000 | ||||||||||||||||||||||||||||||
| Line of Credit, Dividend Restrictions, Percentage of Funds From Operations Allowed on a Cumulative Basis | 95.00% | ||||||||||||||||||||||||||||||
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