Quarterly report pursuant to Section 13 or 15(d)

Debt Guaranteed by the Company (Details)

v3.20.2
Debt Guaranteed by the Company (Details) - Debt [Member] - USD ($)
Sep. 30, 2020
Mar. 31, 2020
Feb. 29, 2020
Dec. 31, 2019
Tanger Properties Limited Partnership [Member] | Line of Credit [Member]        
Line of Credit Facility [Line Items]        
Line of credit borrowing capacity $ 600,000,000.0 $ 600,000,000.0 $ 600,000,000.0  
Tanger Factory Outlet Centers, Inc. [Member] | Line of Credit [Member]        
Line of Credit Facility [Line Items]        
Guarantor obligation 0     $ 0
Tanger Factory Outlet Centers, Inc. [Member] | Unsecured Term Loan [Member]        
Line of Credit Facility [Line Items]        
Guarantor obligation $ 350,000,000     $ 350,000,000