Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Data of the Company (Unaudited) - Narrative (Details)

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Quarterly Financial Data of the Company (Unaudited) - Narrative (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Oct. 31, 2015
Sep. 30, 2015
Sep. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Tanger Factory Outlet Centers, Inc [Member]                
Debt Instrument [Line Items]                
Gain on sale of assets and interests in unconsolidated entities         $ 7,500 $ 120,447 $ 7,513 $ 0
Loss on early extinguishment of debt         $ 13,100 0 (13,140) 0
Gain on previously held interest in acquired joint venture           $ 0 $ 0 $ 26,002
Wisconsin Dells [Member]                
Debt Instrument [Line Items]                
Gain on sale of assets and interests in unconsolidated entities       $ 13,700        
Kittery I & II, Tuscola, & West Branch [Member]                
Debt Instrument [Line Items]                
Gain on sale of assets and interests in unconsolidated entities   $ 20,215 $ 20,215          
Barstow [Member]                
Debt Instrument [Line Items]                
Gain on sale of assets and interests in unconsolidated entities $ 86,506