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, 2018
Dec. 31, 2017
Dec. 31, 2016
General and Limited Partners' Capital Account, Units [Roll Forward]      
General partner (in units) 1,000,000    
Units withheld for employee income taxes (in units) (89,437) (69,886) (66,760)
Grant of restricted common shares awards by the Company, net of forfeitures (in units) 355,184 411,968 173,124
Issuance of deferred units (in units)     24,040
Repurchase of units (in units) (919,249) (1,911,585)  
Units issued upon exercise of options (in units) 0 1,800 59,700
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 0  
Units issued upon exercise of options (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) 4,995,433 5,027,781 5,052,743
Units withheld for employee income taxes (in units) 0 0 0
Exchange of Class A limited partnership units (in units) (34,749) (32,348) (24,962)
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 0  
Units issued upon exercise of options (in units)   0 0
Limited partners (in units) 4,960,684 4,995,433 5,027,781
Class B Limited Partnership Units [Member]      
General and Limited Partners' Capital Account, Units [Roll Forward]      
Limited partners (in units) 93,560,536 95,095,891 94,880,825
Units withheld for employee income taxes (in units) (89,437) (69,886) (66,760)
Exchange of Class A limited partnership units (in units) 34,749 32,348 24,962
Grant of restricted common shares awards by the Company, net of forfeitures (in units) 355,184 411,968 173,124
Issuance of deferred units (in units)     24,040
Repurchase of units (in units) (919,249) (1,911,585)  
Units issued upon exercise of options (in units)   1,800 59,700
Limited partners (in units) 92,941,783 93,560,536 95,095,891
Limited partners [Member]      
General and Limited Partners' Capital Account, Units [Roll Forward]      
Limited partners (in units) 98,555,969 100,123,672 99,933,568
Units withheld for employee income taxes (in units) (89,437) (69,886) (66,760)
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) 355,184 411,968 173,124
Issuance of deferred units (in units)     24,040
Repurchase of units (in units) (919,249) (1,911,585)  
Units issued upon exercise of options (in units)   1,800 59,700
Limited partners (in units) 97,902,467 98,555,969 100,123,672