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 ($)			1 Months Ended		6 Months Ended
	Jan. 31, 2018	Dec. 31, 2017	Feb. 28, 2018	Jan. 31, 2018	Jun. 30, 2018	Dec. 31, 2011
Debt Instrument [Line Items]
Principal		$ 1,780,562,000			$ 1,785,992,000
Book value of debt		1,763,651,000			$ 1,768,207,000
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			$ 246,348,000
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			$ 247,587,000
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			$ 345,397,000
Senior Notes [Member] \| 3.875% 2027 Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)					3.875%
Principal		300,000,000			$ 300,000,000
Book value of debt		296,182,000			296,373,000
Mortgages Payable [Member] \| Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Principal		37,462,000			35,892,000
Book value of debt		39,879,000			38,111,000
Effective interest rates						5.05%
Mortgages Payable [Member] \| Southaven [Member]
Debt Instrument [Line Items]
Principal	$ 60,000,000	60,000,000	$ 51,400,000.0	$ 60,000,000	51,400,000
Book value of debt		59,881,000			51,124,000
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Principal		325,000,000			325,000,000
Book value of debt		322,975,000			323,249,000
Line of Credit [Member]
Debt Instrument [Line Items]
Principal		208,100,000			223,700,000
Book value of debt		$ 206,160,000			$ 220,018,000
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%