Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation of the Operating Partnership Restricted Unit Activity (Details)

v2.4.0.6
Equity-Based Compensation of the Operating Partnership Restricted Unit Activity (Details) (Tanger Properties Limited Partnership [Member], USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Units
Dec. 31, 2011
Units
Dec. 31, 2010
Schedule of Restricted Unit Activity [Line Items]      
Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value $ 10.6 $ 7.1 $ 4.7
Equity Based Compensation Arrangement by Equity-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number 261,998 197,834  
Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value 97.56 83.70  
Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Grants in Period 142,750    
Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 111.59    
Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Vested in Period (77,336)    
Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value 87.69    
Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (1,250)    
Equity Based Compensation Arrangement by Equity-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value 118.00    
Fully Vested [Member] | Restricted Units [Member]
     
Schedule of Restricted Unit Activity [Line Items]      
Number of Restricted Units Granted to CEO 11,250