Tanger Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Debt of the Operating Partnership - Narrative (Details)

Debt of the Operating Partnership - Narrative (Details) ft² in Thousands	1 Months Ended													3 Months Ended		6 Months Ended	12 Months Ended			21 Months Ended
	Nov. 30, 2016	Oct. 31, 2016 USD ($)	Oct. 28, 2016	Aug. 31, 2016 USD ($)	Jun. 30, 2016	Apr. 30, 2016 USD ($)	Feb. 29, 2016 USD ($)	Jan. 31, 2016 USD ($) ft²	Oct. 31, 2015 USD ($)	Apr. 30, 2015 USD ($) Extension	Dec. 31, 2014 USD ($) Extension	Nov. 30, 2014 USD ($)	Jul. 31, 2014 USD ($)	Oct. 31, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2014	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) ft²	Dec. 31, 2014 USD ($)	Sep. 30, 2015 USD ($)	Jun. 23, 2016 USD ($)	May 31, 2016 ft²	Jul. 31, 2015 USD ($)	May 30, 2015 USD ($)	Dec. 31, 2011
Tanger Properties Limited Partnership [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net																	$ 14,000,000	$ 11,900,000
Amortization of Debt Issuance Costs																	3,237,000	2,730,000	$ 2,382,000
Principal balance of debt																	1,705,998,000	1,567,186,000
Loss on early extinguishment of debt																	0	0	(13,140,000)
Tanger Properties Limited Partnership [Member] \| Mortgages [Member]
Debt Instrument [Line Items]
Collateral for mortgages payable																	327,700,000
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Westgate [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt				$ 62,000,000
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Westgate [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					1.75%
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Effective interest rate																									5.05%
Principal balance of debt																	40,471,000	43,312,000
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Ocean City Factory Outlets [Member]
Debt Instrument [Line Items]
Principal balance of debt																							$ 17,600,000
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| The Outlets at Hershey [Member]
Debt Instrument [Line Items]
Principal balance of debt																								$ 29,000,000
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Southaven [Member]
Debt Instrument [Line Items]
Maximum Borrowing Capacity										$ 60,000,000
Principal balance of debt																	$ 59,277,000	$ 45,824,000
Number of mortgage extensions \| Extension										1
Term of mortgage extension										2 years
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Southaven [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate										1.75%							1.75%	1.75%
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Foxwoods [Member]
Debt Instrument [Line Items]
Maximum Borrowing Capacity											$ 70,300,000.0								$ 70,300,000.0
Principal balance of debt																	$ 70,250,000	$ 70,250,000
Number of mortgage extensions \| Extension											2
Term of mortgage extension											1 year
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Foxwoods [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.55%										1.65%						1.55%	1.65%
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Deer Park [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt								$ 150,000,000
Principal balance of debt																	$ 0	$ 150,000,000
Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Deer Park [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate																		1.50%
Tanger Properties Limited Partnership [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Effective interest rate																									3.15%
Principal balance of debt																	0	$ 10,000,000			$ 10,000,000
Stated Interest Rate(s)																		1.50%
Tanger Properties Limited Partnership [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Liquidity Line, Maximum Borrowings																	20,000,000
Syndicated Line, Maximum Borrowings																	500,000,000
Line of Credit Facility, Syndicated Line, Potential Maximum Borrowings if Accordion Feature is Utilized																	1,000,000,000
Letters of Credit Outstanding, Amount																	$ 5,400,000.0
Percentage of funds from operations allowed on a cumulative basis required for debt covenants																	95.00%
Principal balance of debt																	$ 61,000,000	$ 190,300,000
Line of Credit Facility, Syndicated Line, Amount That The Line May Be Increased									$ 1,000,000,000											$ 750,000,000
Payments of Debt Issuance Costs									$ 2,000,000.0
Tanger Properties Limited Partnership [Member] \| Line of Credit [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate									0.90%								0.90%	0.09%		1.00%
Tanger Properties Limited Partnership [Member] \| Unsecured Term Note [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt							$ 7,500,000
Principal balance of debt																	$ 0	$ 7,500,000
Tanger Properties Limited Partnership [Member] \| Unsecured Term Note [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate																		1.30%
Tanger Properties Limited Partnership [Member] \| Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Syndicated Line, Potential Maximum Borrowings if Accordion Feature is Utilized						$ 175,000,000									$ 150,000,000
Principal balance of debt						$ 325,000,000							$ 250,000,000		$ 250,000,000		$ 325,000,000	$ 250,000,000
Tanger Properties Limited Partnership [Member] \| Unsecured Term Loan [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate						0.95%							1.05%		1.05%	1.60%	0.95%	1.05%
Tanger Properties Limited Partnership [Member] \| Senior Notes [Member] \| 3.125% Senior Notes $250 million [Member]
Debt Instrument [Line Items]
Principal balance of debt				$ 250,000,000
Debt Instrument, Redemption Price, Percentage				99.605%
Debt Instrument, Percentage Yield to Maturity				3.171%
Tanger Properties Limited Partnership [Member] \| Senior Notes [Member] \| 3.125% Senior Notes 100 million [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage			98.962%
Debt Instrument, Percentage Yield to Maturity		3.248%
Additional principal amount		$ 100,000,000												$ 100,000,000
Tanger Properties Limited Partnership [Member] \| Senior Notes [Member] \| 3.125% Senior Notes [Member]
Debt Instrument [Line Items]
Principal balance of debt																	$ 350,000,000	$ 0
Stated Interest Rate(s)		3.125%												3.125%			3.125%
Proceeds from Issuance of Long-term Debt														$ 344,500,000
Tanger Properties Limited Partnership [Member] \| Senior Notes [Member] \| 3.75% Senior Notes [Member]
Debt Instrument [Line Items]
Principal balance of debt												$ 250,000,000					$ 250,000,000	$ 250,000,000
Debt Instrument, Redemption Price, Percentage												99.429%
Debt Instrument, Percentage Yield to Maturity												3.819%
Stated Interest Rate(s)												3.75%					3.75%	3.75%
Proceeds from Issuance of Long-term Debt												$ 246,200,000
Tanger Properties Limited Partnership [Member] \| Senior Notes [Member] \| 6.15% Senior Notes [Member]
Debt Instrument [Line Items]
Principal balance of debt												$ 250,000,000
Stated Interest Rate(s)												6.15%
Loss on early extinguishment of debt											$ 13,100,000
Tanger Properties Limited Partnership [Member] \| Senior Notes [Member] \| 3.875% Senior Notes [Member]
Debt Instrument [Line Items]
Principal balance of debt																	$ 250,000,000	$ 250,000,000
Stated Interest Rate(s)																	3.875%	3.875%
Minimum [Member] \| Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)																	5.14%	5.14%
Maximum [Member] \| Tanger Properties Limited Partnership [Member] \| Mortgages [Member] \| Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Stated Interest Rate(s)																	7.65%	7.65%
Deer Park [Member]
Debt Instrument [Line Items]
Square Feet \| ft²								749
Savannah [Member]
Debt Instrument [Line Items]
Mortgage loan				$ 96,900,000
Square Feet \| ft²																		377				419
Savannah [Member] \| Mortgages [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.65%
Debt [Member] \| Tanger Properties Limited Partnership [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Maximum Borrowing Capacity																	$ 520,000,000