Tanger Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Debt of the Operating Partnership (Schedule of Debt) (Details)

Debt of the Operating Partnership (Schedule of Debt) (Details) - Tanger Properties Limited Partnership [Member] - USD ($)	9 Months Ended
	Sep. 30, 2017	Aug. 31, 2017	Jul. 31, 2017	Dec. 31, 2016	Dec. 31, 2011
Debt Instrument [Line Items]
Principal	$ 1,791,680,000			$ 1,705,998,000
Book value of debt	$ 1,773,981,000			1,687,866,000
Senior Notes [Member] \| 6.125% 2020 Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)	6.125%	6.125%
Principal	$ 0	$ 300,000,000		300,000,000
Book value of debt	$ 0			298,226,000
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	$ 245,882,000			245,425,000
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	$ 247,321,000			247,058,000
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	$ 344,993,000			344,600,000
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	0
Book value of debt	295,985,000			0
Mortgages Payable [Member] \| Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Principal	38,230,000			40,471,000
Book value of debt	40,747,000			43,286,000
Effective interest rates					5.05%
Mortgages Payable [Member] \| Foxwoods [Member]
Debt Instrument [Line Items]
Principal	70,250,000			70,250,000
Book value of debt	70,174,000			69,902,000
Mortgages Payable [Member] \| Southaven [Member]
Debt Instrument [Line Items]
Principal	60,000,000			59,277,000
Book value of debt	59,855,000			58,957,000
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Principal	325,000,000			325,000,000
Book value of debt	323,011,000			322,410,000
Line of Credit [Member]
Debt Instrument [Line Items]
Principal	148,200,000			61,000,000
Book value of debt	$ 146,013,000			$ 58,002,000
London Interbank Offered Rate (LIBOR) [Member] \| Mortgages Payable [Member] \| Foxwoods [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.55%
London Interbank Offered Rate (LIBOR) [Member] \| Mortgages Payable [Member] \| Southaven [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
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%
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%