Debt of the Operating Partnership (Narrative) (Details)		1 Months Ended	6 Months Ended
		Apr. 30, 2015 USD ($) Extension	Jun. 30, 2015 USD ($)		May. 01, 2015 USD ($)	Dec. 31, 2014 USD ($)		Dec. 31, 2011
Tanger Properties Limited Partnership [Member]
Debt Instrument [Line Items]
Principal			$ 1,518,200,000			$ 1,446,830,000
Tanger Properties Limited Partnership [Member] | Mortgages [Member]
Debt Instrument [Line Items]
Collateral for mortgages payable			572,700,000			602,700,000
Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Atlantic City Outlets The Walk [Member]
Debt Instrument [Line Items]
Effective interest rates								5.05%
Principal			44,673,000			45,997,000	[1]
Premium	[1]		3,494,000			3,694,000
Tanger Properties Limited Partnership [Member] | Mortgages [Member] | The Outlets at Hershey [Member]
Debt Instrument [Line Items]
Effective interest rates								3.40%
Principal			0		$ 29,000,000	29,271,000	[1]
Premium			0	[1]	$ 201,000	399,000	[1]
Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Ocean City Factory Outlets [Member]
Debt Instrument [Line Items]
Effective interest rates								4.68%
Principal			17,635,000			17,827,000	[1]
Premium	[1]		51,000			99,000
Tanger Properties Limited Partnership [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Effective interest rates								3.15%
Principal	[1]		10,000,000			10,000,000
Tanger Properties Limited Partnership [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
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, Syndicated Line, Maximum Borrowings, Included in Total Line of Credit Maximum Borrowings			500,000,000
Line of Credit Facility, Syndicated Line, Potential Maximum Borrowings if Accordion Feature is Utilized			$ 750,000,000
Line of Credit, Dividend Restrictions, Percentage of Funds From Operations Allowed on a Cumulative Basis			95.00%
Principal			$ 176,300,000			$ 111,000,000
Minimum [Member]
Debt Instrument [Line Items]
Percent of guaranty of completion and principal guaranty			5.00%
Maximum [Member]
Debt Instrument [Line Items]
Percent of guaranty of completion and principal guaranty			100.00%
Southaven [Member]
Debt Instrument [Line Items]
Principal			$ 0
Southaven [Member] | Mortgages [Member]
Debt Instrument [Line Items]
Line of credit, Maximum borrowing capacity		$ 60,000,000
Basis spread on variable rate		1.75%
Number of mortgage extensions | Extension		1
Term of mortgage extension		2 years

[1] The effective interest rates assigned during the purchase price allocation to these assumed mortgages and note payable during acquisitions in 2011 were as follows: Atlantic City 5.05%, Hershey 3.40%, Ocean City 4.68%, and note payable 3.15%.