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

Disposition of Properties and Impairment Charge (Details) ft² in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) ft² property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		878
Net Sales Proceeds		$ 128,505
Gain on sale of assets		$ 43,422
Nags Head, Ocean City, Park City & Williamsburg [Member] \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
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
Land outparcel [Member] \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		0
Net Sales Proceeds		$ 257
Gain on sale of assets		$ 0
Jeffersonville [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge	$ 49,700