Quarterly report pursuant to Section 13 or 15(d)

Partners' Equity of the Operating Partnership (Details)

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Partners' Equity of the Operating Partnership (Details) - Tanger Properties Limited Partnership [Member] - shares
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Sep. 30, 2018
General and Limited Partners' Capital Account, Units [Roll Forward]      
General partner (in units)   1,000,000  
Grant of restricted common shares awards, net of forfeitures (in units)   242,167 355,184
Repurchased of units (in units) (650,929) (1,209,328) (919,249)
Units withheld for employee income taxes (in units)   (81,284) (89,437)
General partner (in units) 1,000,000 1,000,000  
General partner [Member]      
General and Limited Partners' Capital Account, Units [Roll Forward]      
General partner (in units) 1,000,000 1,000,000 1,000,000
Grant of restricted common shares awards, net of forfeitures (in units)   0 0
Repurchased of units (in units) 0 0 0
Units withheld for employee income taxes (in units)   0 0
General partner (in units) 1,000,000 1,000,000 1,000,000
Class A Limited Partnership Units [Member]      
General and Limited Partners' Capital Account, Units [Roll Forward]      
Limited partners (in units) 4,960,684 4,960,684 4,995,433
Grant of restricted common shares awards, net of forfeitures (in units)   0 0
Repurchased of units (in units) 0 0 0
Units withheld for employee income taxes (in units)   0 0
Limited partners (in units) 4,960,684 4,960,684 4,995,433
Class B Limited Partnership Units [Member]      
General and Limited Partners' Capital Account, Units [Roll Forward]      
Limited partners (in units) 92,544,267 92,941,783 93,560,536
Grant of restricted common shares awards, net of forfeitures (in units)   242,167 355,184
Repurchased of units (in units) (650,929) (1,209,328) (919,249)
Units withheld for employee income taxes (in units)   (81,284) (89,437)
Limited partners (in units) 91,893,338 91,893,338 92,907,034
Limited partners [Member]      
General and Limited Partners' Capital Account, Units [Roll Forward]      
Limited partners (in units) 97,504,951 97,902,467 98,555,969
Grant of restricted common shares awards, net of forfeitures (in units)   242,167 355,184
Repurchased of units (in units) (650,929) (1,209,328) (919,249)
Units withheld for employee income taxes (in units)   (81,284) (89,437)
Limited partners (in units) 96,854,022 96,854,022 97,902,467