Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Data of the Company (Unaudited) (Details)

v3.20.4
Quarterly Financial Data of the Company (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended 36 Months Ended
Aug. 31, 2020
Jun. 30, 2020
Mar. 31, 2019
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
Dec. 31, 2020
Diluted earnings per common share:                              
Gain on sale of assets                       $ 43,422      
Tanger Factory Outlet Centers, Inc. [Member]                              
Entity Information [Line Items]                              
Total revenues       $ 111,155 $ 103,213 $ 63,990 $ 111,633 $ 120,492 $ 118,994 $ 115,707 $ 123,155 389,991 $ 478,348 $ 494,681  
Net income (loss)       277 13,719 (23,890) (28,119) (12,379) 24,809 14,457 65,841 (38,013) 92,728 45,563  
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  
Income (loss) available to common shareholders of Tanger Factory Outlet Centers, Inc.       $ 260 $ 12,883 $ (22,864) $ (27,398) $ (12,055) $ 23,241 $ 13,613 $ 61,720 $ (36,970) $ 86,519 $ 42,444  
Basic earnings per common share:                              
Net income (loss) (in dollars per share)       $ 0 $ 0.14 $ (0.25) $ (0.30) $ (0.13) $ 0.25 $ 0.15 $ 0.66 $ (0.40) $ 0.93 $ 0.45  
Diluted earnings per common share:                              
Net income (loss) (in dollars per share)       $ 0 $ 0.14 $ (0.25) $ (0.30) $ (0.13) $ 0.25 $ 0.15 $ 0.66 $ (0.40) $ 0.93 $ 0.45  
Gain on sale of assets                       $ 2,324 $ 43,422 $ 0  
Unconsolidated Properties [Member]                              
Entity Information [Line Items]                              
Total revenues                       76,866 93,508 94,509  
Net income (loss)                       2,755 16,244 2,217  
Diluted earnings per common share:                              
Impairment charges                       6,181 $ 0 $ 14,359  
Unconsolidated Properties [Member] | Les Factoreries St. Sauveur Property [Member]                              
Diluted earnings per common share:                              
Impairment charges   $ 6,181                          
Company's share of impairment charge   $ 3,091       $ 3,100                  
Jeffersonville [Member]                              
Diluted earnings per common share:                              
Impairment charges               $ 37,600             $ 86,800
Foxwoods [Member]                              
Diluted earnings per common share:                              
Impairment charges             $ 45,700         $ 60,100      
Foxwoods and Jeffersonville [Member]                              
Diluted earnings per common share:                              
Impairment charges       $ 21,600                      
Nags Head, Ocean City, Park City & Williamsburg [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]                              
Diluted earnings per common share:                              
Gain on sale of assets     $ 43,422           $ 43,400            
Terrell [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]                              
Diluted earnings per common share:                              
Gain on sale of assets $ 2,324       $ 2,300