Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Jul. 30, 2021
Entity Information [Line Items]
Entity Registrant Name	TANGER FACTORY OUTLET CENTERS, INC
Entity Central Index Key	0000899715
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	1-11986
Entity Incorporation, State or Country Code	NC
Entity Tax Identification Number	56-1815473
Entity Address, Address Line One	3200 Northline Avenue
Entity Address, Address Line Two	Suite 360
Entity Address, City or Town	Greensboro
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27408
City Area Code	336
Local Phone Number	292-3010
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Shares, $0.01 par value
Trading Symbol	SKT
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		103,957,262
Tanger Properties Limited Partnership [Member]
Entity Information [Line Items]
Entity Registrant Name	TANGER PROPERTIES LIMITED PARTNERSHIP
Entity Central Index Key	0001004036
Entity File Number	333-3526-01
Entity Incorporation, State or Country Code	NC
Entity Tax Identification Number	56-1822494
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false