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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, 2021 | Mar. 31, 2020
Unconsolidated Properties [Member] |  |
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items] |  |
Revenues | $ 20,992 | $ 22,036
Expenses: |  |
Property operating | 8,413 | 9,129
General and administrative | 29 | 139
Depreciation and amortization | 5,901 | 5,906
Total expenses | 14,343 | 15,174
Interest expense | (2,945) | (3,735)
Gain (loss) on asset sale | 503 | 0
Other income (expense) | 59 | 56
Total other income (expense) | (2,383) | (3,679)
Net income (loss) | 4,266 | 3,183
Tanger Factory Outlet Centers, Inc. [Member] |  |
Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items] |  |
Revenues | 100,694 | 111,633
Expenses: |  |
Property operating | 35,311 | 38,627
General and administrative | 16,793 | 12,584
Depreciation and amortization | 28,150 | 29,417
Total expenses | 80,254 | 126,303
Interest expense | (14,362) | (15,196)
Other income (expense) | (3,505) | 220
Total other income (expense) | (17,867) | (14,976)
Net income (loss) | 4,342 | (28,119)
The Company and Operating Partnership's share of: |  |
Net income | 1,769 | 1,527
Depreciation and amortization (real estate related) | $ 2,996 | $ 3,018

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