Annual report pursuant to Section 13 and 15(d)

Noncontrolling Interests (Details)

v3.20.4
Noncontrolling Interests (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
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]                      
Exchange of Class A limited partnership units (in units)                 116,530 49,511 34,749
Repurchase of shares/units, including transactions costs (in shares/units)                 0 1,209,328 919,249
Net income (loss) attributable to Tanger Factory Outlet Centers, Inc. $ 263 $ 13,029 $ (22,688) $ (26,882) $ (11,749) $ 23,546 $ 13,727 $ 62,331 $ (36,278) $ 87,855 $ 43,655
Increase (decrease) in Tanger Factory Outlet Centers, Inc. paid-in-capital adjustments to noncontrolling interests                 (74) 200  
Changes from net income (loss) attributable to Tanger Factory Outlet Centers, Inc. and transfers from noncontrolling interest                 $ (36,352) $ 88,055