Annual report pursuant to Section 13 and 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 ($)
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Expenses:                      
Impairment charges                     $ 0
Unconsolidated Properties [Member]                      
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items]                      
Revenues                 $ 93,508,000 $ 94,509,000 96,776,000
Expenses:                      
Property operating                 36,812,000 37,121,000 36,507,000
General and administrative                 271,000 266,000 350,000
Impairment charges                 0 14,359,000 18,042,000
Depreciation and amortization                 24,454,000 26,262,000 28,162,000
Total expenses                 61,537,000 78,008,000 83,061,000
Interest expense                 (16,234,000) (14,518,000) (10,365,000)
Other non-operating income                 507,000 234,000 71,000
Total other income (expense)                 (15,727,000) (14,284,000) (10,294,000)
Net income                 16,244,000 2,217,000 3,421,000
Tanger Factory Outlet Centers, Inc. [Member]                      
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items]                      
Revenues $ 120,492,000 $ 118,994,000 $ 115,707,000 $ 123,155,000 $ 127,199,000 $ 124,236,000 $ 119,711,000 $ 123,535,000 478,348,000 494,681,000 488,234,000
Expenses:                      
Property operating                 157,734,000 160,457,000 155,235,000
General and administrative                 53,790,000 44,167,000 44,004,000
Impairment charges                 37,610,000 49,739,000 0
Depreciation and amortization                 123,314,000 131,722,000 127,744,000
Total expenses                 372,448,000 386,085,000 327,511,000
Interest expense                 (61,672,000) (64,821,000) (64,825,000)
Other non-operating income                 (2,761,000) 864,000 2,724,000
Total other income (expense)                 (21,011,000) (63,957,000) (90,784,000)
Net income $ (12,379,000) $ 24,809,000 $ 14,457,000 $ 65,841,000 $ 20,619,000 $ (23,031,000) $ 24,290,000 $ 23,685,000 92,728,000 45,563,000 71,876,000
The Company and Operating Partnership's share of:                      
Net income                 7,839,000 924,000 1,937,000
Depreciation, amortization and asset impairments (real estate related)                 $ 12,512,000 $ 20,494,000 $ 22,878,000