Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity of the Company (Details)

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Shareholders' Equity of the Company (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
May 31, 2017
Exchange of Class A limited partnership units (in units) 32,348 24,962 25,663  
Stock Repurchase Program, Authorized Amount       $ 125.0
Repurchase of shares including transaction cost (in shares) 1,911,585      
Stock Repurchased Average Price Per Share (dollars per share) $ 25.80      
Shares repurchased exclusive of commissions and related fees $ 49.3      
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 75.7