Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Loss of the Company - Balances of Each Component of AOCI (Details)

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Accumulated Other Comprehensive Loss of the Company - Balances of Each Component of AOCI (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance $ 456,109 $ 505,535 $ 612,302
Ending balance 358,883 456,109 505,535
Interest rate swap gain (loss) to be reclassified within twelve months (1,100)    
Foreign Currency Tanger Factory Outlet Centers, Inc. Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (25,094) (32,610) (24,360)
Other comprehensive income (loss) before reclassifications 1,695 4,062 (8,250)
Reclassification out of accumulated other comprehensive income (loss) into other income (expense) for foreign currency and interest expense for cash flow hedges 0 3,454 0
Ending balance (23,399) (25,094) (32,610)
Cash flow hedges Tanger Factory Outlet Centers, Inc. Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance   5,459 5,075
Other comprehensive income (loss) before reclassifications   (3,755) 2,335
Reclassification out of accumulated other comprehensive income (loss) into other income (expense) for foreign currency and interest expense for cash flow hedges   (2,105) (1,951)
Ending balance     5,459
Cash flow hedges Tanger Factory Outlet Centers, Inc. Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (401)    
Other comprehensive income (loss) before reclassifications (6,749)    
Reclassification out of accumulated other comprehensive income (loss) into other income (expense) for foreign currency and interest expense for cash flow hedges 3,964    
Ending balance (3,186) (401)  
Total Tanger Factory Outlet Centers, Inc. Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (25,495) (27,151) (19,285)
Other comprehensive income (loss) before reclassifications (5,054) 307 (5,915)
Reclassification out of accumulated other comprehensive income (loss) into other income (expense) for foreign currency and interest expense for cash flow hedges 3,964 1,349 (1,951)
Ending balance (26,585) (25,495) (27,151)
Foreign Currency noncontrolling interest [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (1,369) (1,770) (1,329)
Other comprehensive income (loss) before reclassifications 88 217 (441)
Reclassification out of accumulated other comprehensive income (loss) into other income (expense) for foreign currency and interest expense for cash flow hedges 0 184 0
Ending balance (1,281) (1,369) (1,770)
Cash Flow Hedges noncontrolling interest [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance   290 269
Other comprehensive income (loss) before reclassifications   (202) 126
Reclassification out of accumulated other comprehensive income (loss) into other income (expense) for foreign currency and interest expense for cash flow hedges   (112) (105)
Ending balance     290
Cash Flow Hedges noncontrolling interest [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (24)    
Other comprehensive income (loss) before reclassifications (359)    
Reclassification out of accumulated other comprehensive income (loss) into other income (expense) for foreign currency and interest expense for cash flow hedges 210    
Ending balance (173) (24)  
Noncontrolling Interest [Member]      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (1,393) (1,480) (1,060)
Other comprehensive income (loss) before reclassifications (271) 15 (315)
Reclassification out of accumulated other comprehensive income (loss) into other income (expense) for foreign currency and interest expense for cash flow hedges 210 72 (105)
Ending balance $ (1,454) $ (1,393) $ (1,480)