Annual report pursuant to Section 13 and 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
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
General and Limited Partners' Capital Account, Units [Roll Forward]      
General partner (in units) 1,000,000    
Units withheld for employee income taxes (in units) (69,886) (66,760) (31,863)
Grant of restricted common shares awards by the Company, net of forfeitures (in units) 411,968 173,124 348,844
Issuance of deferred units (in units)   24,040  
Repurchase of units (in units) (1,911,585) 0  
Units issued upon exercise of options (in units) 1,800 59,700 28,400
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
Units withheld for employee income taxes (in units) 0 0 0
Exchange of Class A limited partnership units (in units) 0 0 0
Grant of restricted common shares awards by the Company, net of forfeitures (in units) 0 0 0
Issuance of deferred units (in units)   0  
Repurchase of units (in units) 0    
Units issued upon exercise of options (in units) 0 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) 5,027,781 5,052,743 5,078,406
Units withheld for employee income taxes (in units) 0 0 0
Exchange of Class A limited partnership units (in units) (32,348) (24,962) (25,663)
Grant of restricted common shares awards by the Company, net of forfeitures (in units) 0 0 0
Issuance of deferred units (in units)   0  
Repurchase of units (in units) 0    
Units issued upon exercise of options (in units) 0 0 0
Limited partners (in units) 4,995,433 5,027,781 5,052,743
Class B Limited Partnership Units [Member]      
General and Limited Partners' Capital Account, Units [Roll Forward]      
Limited partners (in units) 95,095,891 94,880,825 94,509,781
Units withheld for employee income taxes (in units) (69,886) (66,760) (31,863)
Exchange of Class A limited partnership units (in units) 32,348 24,962 25,663
Grant of restricted common shares awards by the Company, net of forfeitures (in units) 411,968 173,124 348,844
Issuance of deferred units (in units)   24,040  
Repurchase of units (in units) (1,911,585)    
Units issued upon exercise of options (in units) 1,800 59,700 28,400
Limited partners (in units) 93,560,536 95,095,891 94,880,825
Limited partners [Member]      
General and Limited Partners' Capital Account, Units [Roll Forward]      
Limited partners (in units) 100,123,672 99,933,568 99,588,187
Units withheld for employee income taxes (in units) (69,886) (66,760) (31,863)
Exchange of Class A limited partnership units (in units) 0 0 0
Grant of restricted common shares awards by the Company, net of forfeitures (in units) 411,968 173,124 348,844
Issuance of deferred units (in units)   24,040  
Repurchase of units (in units) (1,911,585)    
Units issued upon exercise of options (in units) 1,800 59,700 28,400
Limited partners (in units) 98,555,969 100,123,672 99,933,568