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

Developments of Consolidated Outlet Centers (Narrative) (Details)

Developments of Consolidated Outlet Centers (Narrative) (Details) ft² in Thousands	1 Months Ended		6 Months Ended	22 Months Ended
	Apr. 30, 2015 USD ($) Extension	Jan. 31, 2015 USD ($) ft² mi	Jun. 30, 2015 USD ($) ft²	Jun. 30, 2015 USD ($) ft²	Jul. 31, 2015 ft² mi
Foxwoods [Member]
Square Feet \| ft²			312	312
Partner's Portion of Contributed Capital to the Joint Venture				$ 1,000,000
Company Portion of Contributed Capital to the Joint Venture				46,700,000
Preferred return percentage			10.00%
Foxwoods [Member] \| Excess contribution [Member]
Company Portion of Contributed Capital to the Joint Venture				$ 40,000,000
Preferred return percentage			15.00%
Grand Rapids [Member] \| Subsequent Event [Member]
Square Feet \| ft²					350
Number of miles from major city \| mi					11
Southaven [Member]
Square Feet \| ft²		320	320	320
Partner's Portion of Contributed Capital to the Joint Venture			$ 456,000
Company Portion of Contributed Capital to the Joint Venture			26,600,000
Number of miles from major city \| mi		5
Payments to acquire land		$ 14,800,000
Southaven [Member] \| Mortgages [Member]
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
Southaven [Member] \| Senior equity contribution [Member]
Company Portion of Contributed Capital to the Joint Venture			$ 17,700,000
Preferred return percentage			10.00%
Southaven [Member] \| Junior equity contribution [Member]
Company Portion of Contributed Capital to the Joint Venture			$ 8,500,000
Preferred return percentage			14.00%