Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Income Taxes - Schedule of Taxable Income Available to Common Shareholders (Details)

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Summary of Significant Accounting Policies - Income Taxes - Schedule of Taxable Income Available to Common Shareholders (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Schedule of Taxable Income Available to Common Shareholders [Line Items]                      
Net income (loss) available to the Company's shareholders $ 263 $ 13,029 $ (22,688) $ (26,882) $ (11,749) $ 23,546 $ 13,727 $ 62,331 $ (36,278) $ 87,855 $ 43,655
Depreciation and amortization                 71,896 51,602 58,208
Sale of assets and interests in unconsolidated entities                 (6,021) (41,138) (3,243)
Equity in earnings from unconsolidated joint ventures                 9,642 1,447 18,444
Share-based payment compensation                 7,859 8,246 6,269
Other differences                 13,536 8,948 (630)
Taxable income (loss) available to common shareholders                 $ 60,634 $ 116,960 $ 122,703