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

Disposition of Properties (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] ft² in Thousands, $ in Thousands	1 Months Ended		3 Months Ended	9 Months Ended
	Aug. 31, 2020 USD ($) ft²	Mar. 31, 2019 USD ($) ft²	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($) property
Terrell
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross proceeds from sale of assets			$ 8,000	$ 8,000
Area of Real Estate Property \| ft²	178
Net Sales Proceeds	$ 7,626
Gain on sale of assets	$ 2,324
Nags Head, Ocean City, Park City, and Williamsburg
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold \| property					4
Gross proceeds from sale of assets					$ 130,500
Area of Real Estate Property \| ft²		878
Net Sales Proceeds		$ 128,248
Gain on sale of assets		$ 43,422