Partners' Equity of the Operating Partnership (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
General and Limited Partners' Capital Account, Units [Roll Forward]
Options exercised (in units)	25,400	45,625	31,400	70,625
Issuance of shares (in shares)	1,915,762	818,943	1,915,762	818,943
Exchange of Class A limited partnership units (shares)			45,054
Grant of restricted common share awards, net of forfeitures (in units)			595,924	770,265
Forfeitures of restricted common share awards by the company (in shares)		(4,450)
Units withheld for employee income taxes (in units)		(5,267)	(211,605)	(381,166)
Tanger Properties Limited Partnership
General and Limited Partners' Capital Account, Units [Roll Forward]
General Partnership Units (in units)			1,250,000
Limited Partnership Units (in units)				112,351,209
Options exercised (in units)	25,400	45,625	31,400	70,625
Issuance of shares (in shares)		818,943		136,469
Grant of restricted common share awards, net of forfeitures (in units)			595,924	770,265
Forfeitures of restricted common share awards by the company (in shares)		(4,540)
Issuance of deferred shares (in shares)				136,469
Units withheld for employee income taxes (in units)		(5,267)	(211,605)	(381,166)
General Partnership Units (in units)	1,250,000		1,250,000
Limited Partnership Units (in units)		113,766,345		113,766,345
Tanger Properties Limited Partnership | General Partnership Units
General and Limited Partners' Capital Account, Units [Roll Forward]
General Partnership Units (in units)	1,250,000	1,150,000	1,250,000	1,150,000
Options exercised (in units)	0		0	0
Grant of restricted common share awards, net of forfeitures (in units)			0	0
Forfeitures of restricted common share awards by the company (in shares)		0
Issuance of deferred shares (in shares)				0
Exchange of Class A Limited Partnership Units (in shares)			0
Settlement of Forward Equity Sale Agreements	0		0
Units withheld for employee income taxes (in units)		0	0	0
General Partnership Units (in units)	1,250,000	1,150,000	1,250,000	1,150,000
Tanger Properties Limited Partnership | Limited Partnership Units
General and Limited Partners' Capital Account, Units [Roll Forward]
Limited Partnership Units (in units)	116,586,910	112,911,494	116,196,591
Options exercised (in units)	25,400		31,400	70,625
Issuance of shares (in shares)		818,943		818,943
Grant of restricted common share awards, net of forfeitures (in units)			595,924
Forfeitures of restricted common share awards by the company (in shares)		(4,450)
Issuance of deferred shares (in shares)				136,469
Exchange of Class A Limited Partnership Units (in shares)			0
Settlement of Forward Equity Sale Agreements	1,915,762		1,915,762
Units withheld for employee income taxes (in units)		(5,267)	(211,605)	(381,166)
Limited Partnership Units (in units)	118,528,072	113,766,345	118,528,072	113,766,345
Tanger Properties Limited Partnership | Class A
General and Limited Partners' Capital Account, Units [Roll Forward]
Limited Partnership Units (in units)	4,662,904	4,707,958	4,707,958	4,707,958
Options exercised (in units)	0		0	0
Grant of restricted common share awards, net of forfeitures (in units)			0	0
Forfeitures of restricted common share awards by the company (in shares)		0
Issuance of deferred shares (in shares)				0
Exchange of Class A Limited Partnership Units (in shares)			(45,054)
Settlement of Forward Equity Sale Agreements	0		0
Units withheld for employee income taxes (in units)		0	0	0
Limited Partnership Units (in units)	4,662,904	4,707,958	4,662,904	4,707,958
Tanger Properties Limited Partnership | Class B
General and Limited Partners' Capital Account, Units [Roll Forward]
Limited Partnership Units (in units)	111,924,006	108,203,536	111,488,633	107,643,251
Options exercised (in units)	25,400	45,625	31,400	70,625
Issuance of shares (in shares)		818,943		818,943
Grant of restricted common share awards, net of forfeitures (in units)			595,924	770,265
Forfeitures of restricted common share awards by the company (in shares)		(4,450)
Issuance of deferred shares (in shares)				136,469
Exchange of Class A Limited Partnership Units (in shares)			45,054
Settlement of Forward Equity Sale Agreements	1,915,762		1,915,762
Units withheld for employee income taxes (in units)		(5,267)	(211,605)	(381,166)
Limited Partnership Units (in units)	113,865,168	109,058,387	113,865,168	109,058,387