Annual report pursuant to Section 13 and 15(d)

Cover

v3.20.4
Cover - USD ($)
 12 Months Ended
Dec. 31, 2020
Feb. 12, 2021
Jun. 30, 2020
Entity Information [Line Items]      
Entity Registrant Name TANGER FACTORY OUTLET CENTERS, INC    
Entity Central Index Key 0000899715    
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2020    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Document Annual Report true    
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    
Title of 12(b) Security Common Shares, $.01 par value    
Trading Symbol SKT    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 652,857,378
Entity Common Stock, Shares Outstanding   93,569,801  
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    
No Trading Symbol Flag true    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Entity Shell Company false