Quarterly report pursuant to Section 13 or 15(d)

Investments in Unconsolidated Real Estate Joint Ventures (Summary Statements of Operations for Unconsolidated Joint Ventures) (Details)

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Investments in Unconsolidated Real Estate Joint Ventures (Summary Statements of Operations for Unconsolidated Joint Ventures) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Unconsolidated Properties [Member]    
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items]    
Revenues $ 23,997 $ 24,062
Expenses:    
Property operating 9,928 9,378
General and administrative 198 120
Depreciation and amortization 6,363 7,513
Total expenses 16,489 17,011
Operating income 7,508 7,051
Interest expense (3,077) (2,260)
Other non-operating income (expense) 52 2
Net income 4,483 4,793
Tanger Factory Outlet Centers, Inc. [Member]    
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items]    
Revenues 123,535 121,368
Expenses:    
Property operating 42,218 40,387
General and administrative 11,112 11,412
Depreciation and amortization 33,123 31,294
Total expenses 86,453 83,720
Operating income 37,082 37,648
Interest expense (15,800) (16,487)
Other non-operating income (expense) 209 35
Net income 23,685 23,514
The Company and Operating Partnership's share of:    
Net income 2,194 2,318
Depreciation and amortization expense (real estate related) $ 3,229 $ 3,838