Quarterly report pursuant to Section 13 or 15(d)

Share-based Compensation of the Company (Narrative) (Details)

v2.4.0.8
Share-based Compensation of the Company (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended 6 Months Ended
Jun. 30, 2013
Restricted Shares [Member]
Feb. 28, 2013
Performance Shares [Member]
Feb. 28, 2013
Peer Group Share Appreciation [Member]
Performance Shares [Member]
Feb. 28, 2013
Peer Group Share Appreciation [Member]
Performance Shares [Member]
Minimum [Member]
Feb. 28, 2013
Peer Group Share Appreciation [Member]
Performance Shares [Member]
Median [Member]
Feb. 28, 2013
Peer Group Share Appreciation [Member]
Performance Shares [Member]
Maximum [Member]
Feb. 28, 2013
Company Share Appreciation [Member]
Performance Shares [Member]
Feb. 28, 2013
Company Share Appreciation [Member]
Performance Shares [Member]
Minimum [Member]
Feb. 28, 2013
Company Share Appreciation [Member]
Performance Shares [Member]
Median [Member]
Feb. 28, 2013
Company Share Appreciation [Member]
Performance Shares [Member]
Maximum [Member]
Feb. 28, 2013
January 4, 2016 [Member]
Performance Shares [Member]
Feb. 28, 2013
January 3, 2017 [Member]
Performance Shares [Member]
Jun. 30, 2013
Tanger Factory Outlet Centers, Inc [Member]
Jun. 30, 2013
Tanger Factory Outlet Centers, Inc [Member]
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Restricted shares, granted 349,373                         349,373
Share-based Payment Award, Equity Instruments, Other Than Options, Grant Date Fair Value Range, Lower Limit $ 28.84                          
Share-based Payment Award, Equity Instruements Other Than Options, Grant Date Fair Value Range, Upper Limit $ 36.05                          
Maximum amount of conversion of restricted common shares   315,150                        
Award measurement period   3 years                        
Maximum potential share-based compensation   $ 13.25                        
Vesting percentage                     50.00% 50.00%    
Percent of total shares available to be awarded     30.00%       70.00%              
Number of shares available for grant     94,545       220,605              
Percent of shares earned if threshold met       33.33% 66.67% 100.00%   33.33% 66.67% 100.00%        
Number of shares earned if threshold met       31,515 63,030 94,545   73,535 147,070 220,605        
Threshold percentage for performance target   35.00%   50.00% 60.00% 70.00%   25.00% 30.00% 35.00%        
Total unrecognized compensation cost related to unvested share-based compensation arrangements                         $ 33.8  
Weighted-average period unrecognized cost is to be recognized                         3 years 4 months 1 day