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

Investments in Unconsolidated Real Estate Joint Ventures - Unconsolidated Real Estate Joint Ventures (Details)

Investments in Unconsolidated Real Estate Joint Ventures - Unconsolidated Real Estate Joint Ventures (Details) ft² in Thousands, $ in Thousands	Dec. 31, 2021 USD ($) ft²	Dec. 31, 2020 USD ($) ft²	Dec. 31, 2019 ft²	Dec. 31, 2016 ft²	Jul. 31, 2014 ft²	Nov. 30, 2013 ft²	Oct. 31, 2012 ft²
Schedule of Equity Method Investments [Line Items]
Square Feet \| ft²			878
Columbus [Member]
Schedule of Equity Method Investments [Line Items]
Ownership %	50.00%	50.00%
Square Feet \| ft²	355	355		355
Investments included in investments in unconsolidated joint ventures	$ 200	$ 2,000
RioCan Canada [Member]
Schedule of Equity Method Investments [Line Items]
Ownership %	50.00%	50.00%
Square Feet \| ft²	665	765
Investments included in investments in unconsolidated joint ventures	$ 82,400	$ 92,600
Charlotte [Member]
Schedule of Equity Method Investments [Line Items]
Ownership %	50.00%	50.00%
Square Feet \| ft²	399	399			398
Investments included in other liabilities	$ (16,200)	$ (12,800)
National Harbor [Member]
Schedule of Equity Method Investments [Line Items]
Ownership %	50.00%	50.00%
Square Feet \| ft²	341	341				341
Investments included in other liabilities	$ (11,200)	$ (8,400)
Galveston/Houston [Member]
Schedule of Equity Method Investments [Line Items]
Ownership %	50.00%	50.00%
Square Feet \| ft²	353	353					353
Investments included in other liabilities	$ (14,000)	$ (19,500)
Charlotte, National Harbor and Galveston/Houston
Schedule of Equity Method Investments [Line Items]
Investments included in other liabilities	(41,400)	(40,700)
Columbus and Rio Can
Schedule of Equity Method Investments [Line Items]
Investments included in investments in unconsolidated joint ventures	82,600	94,600
Unconsolidated Properties [Member]
Schedule of Equity Method Investments [Line Items]
Total Joint Venture Debt, Net	329,460	344,856
Unconsolidated Properties [Member] \| Columbus [Member]
Schedule of Equity Method Investments [Line Items]
Total Joint Venture Debt, Net	70,900	70,800
Unconsolidated Properties [Member] \| RioCan Canada [Member]
Schedule of Equity Method Investments [Line Items]
Total Joint Venture Debt, Net	0	0
Unconsolidated Properties [Member] \| Charlotte [Member]
Schedule of Equity Method Investments [Line Items]
Total Joint Venture Debt, Net	99,600	99,600
Unconsolidated Properties [Member] \| National Harbor [Member]
Schedule of Equity Method Investments [Line Items]
Total Joint Venture Debt, Net	94,500	94,500
Unconsolidated Properties [Member] \| Galveston/Houston [Member]
Schedule of Equity Method Investments [Line Items]
Total Joint Venture Debt, Net	64,400	80,000
Mortgages [Member] \| Unconsolidated Properties [Member]
Schedule of Equity Method Investments [Line Items]
Debt origination costs and premiums	$ 1,000	$ 1,100