Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Debt of the Operating Partnership (Schedule of Debt) (Details) - Tanger Properties Limited Partnership [Member] - USD ($)			1 Months Ended		9 Months Ended
	Jan. 31, 2018	Dec. 31, 2017	Feb. 28, 2018	Jan. 31, 2018	Sep. 30, 2018	Jul. 31, 2017	Dec. 31, 2011
Debt Instrument [Line Items]
Principal		$ 1,780,562,000			$ 1,764,591,000
Book value of debt		1,763,651,000			$ 1,747,660,000
Senior Notes [Member] \| 3.875% 2023 Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)					3.875%
Principal		250,000,000			$ 250,000,000
Book value of debt		246,036,000			$ 246,505,000
Senior Notes [Member] \| 3.75% 2024 Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)					3.75%
Principal		250,000,000			$ 250,000,000
Book value of debt		247,410,000			$ 247,677,000
Senior Notes [Member] \| 3.125% 2026 Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)					3.125%
Principal		350,000,000			$ 350,000,000
Book value of debt		345,128,000			$ 345,533,000
Senior Notes [Member] \| 3.875% 2027 Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)					3.875%	3.875%
Principal		300,000,000			$ 300,000,000	$ 300,000,000
Book value of debt		296,182,000			296,469,000
Mortgages Payable [Member] \| Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Principal		37,462,000			35,091,000
Book value of debt		39,879,000			37,211,000
Effective interest rates							5.05%
Mortgages Payable [Member] \| Southaven [Member]
Debt Instrument [Line Items]
Principal	$ 60,000,000	60,000,000	$ 51,400,000	$ 60,000,000	51,400,000
Book value of debt		59,881,000			51,148,000
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Principal		325,000,000			325,000,000
Book value of debt		322,975,000			323,416,000
Line of Credit [Member]
Debt Instrument [Line Items]
Principal		208,100,000			203,100,000
Book value of debt		$ 206,160,000			$ 199,701,000
London Interbank Offered Rate (LIBOR) [Member] \| Mortgages Payable [Member] \| Southaven [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%		1.80%		1.80%
London Interbank Offered Rate (LIBOR) [Member] \| Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					0.95%
London Interbank Offered Rate (LIBOR) [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		0.90%		0.875%	0.875%
Minimum [Member] \| Mortgages Payable [Member] \| Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)					5.14%
Maximum [Member] \| Mortgages Payable [Member] \| Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)					7.65%