Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Loss of the Operating Partnership - Balances of Each Component (Details)

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Accumulated Other Comprehensive Loss of the Operating Partnership - Balances of Each Component (Details) - Tanger Properties Limited Partnership [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance $ 505,535    
Ending Balance 456,109 $ 505,535  
Interest rate swap gain (loss) to be reclassified within twelve months (344)    
Foreign currency [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (34,380) (25,689) $ (33,827)
Other comprehensive income before reclassifications 4,279 (8,691) 8,138
Reclassification out of accumulated other comprehensive income into interest expense 3,638    
Ending Balance (26,463) (34,380) (25,689)
Cash flow hedges [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Other comprehensive income before reclassifications (3,957)    
Reclassification out of accumulated other comprehensive income into interest expense (2,217)    
Ending Balance (425)    
Cash flow hedges [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance 5,749 5,344 3,993
Other comprehensive income before reclassifications   2,461 1,075
Reclassification out of accumulated other comprehensive income into interest expense   (2,056) 276
Ending Balance   5,749 5,344
Accumulated other comprehensive income (loss) [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (28,631) (20,345) (29,834)
Other comprehensive income before reclassifications 322 (6,230) 9,213
Reclassification out of accumulated other comprehensive income into interest expense 1,421 (2,056) 276
Ending Balance $ (26,888) $ (28,631) $ (20,345)