Tanger Inc. Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

Subsequent Events (Details) (USD $) In Millions, except Share data, unless otherwise specified	Feb. 28, 2013
Subsequent Event [Line Items]
Threshold Percentage for Performance Target	35.00%
Performance Shares [Member]
Subsequent Event [Line Items]
Share-based Award Measurement Period	3
Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	315,150
Number of Common Shares to be Issued Upon Conversion of Performance Shares	315,150
Maximum Potential Share-Based Compensation	13.25
Company Share Appreciation [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	220,605
Percent of Total Shares Available to be Awarded	70.00%
Peer Group Share Appreciation [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	94,545
Percent of Total Shares Available to be Awarded	30.00%
Minimum [Member] \| Company Share Appreciation [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percent of Shares Earned if Threshold Met	33.33%
Number of Shares Earned if Threshold Met	73,528
Threshold Percentage for Performance Target	25.00%
Minimum [Member] \| Peer Group Share Appreciation [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percent of Shares Earned if Threshold Met	33.33%
Number of Shares Earned if Threshold Met	31,512
Threshold Percentage for Performance Target	50.00%
Median [Member] \| Company Share Appreciation [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percent of Shares Earned if Threshold Met	66.67%
Number of Shares Earned if Threshold Met	147,077
Threshold Percentage for Performance Target	30.00%
Median [Member] \| Peer Group Share Appreciation [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percent of Shares Earned if Threshold Met	66.67%
Number of Shares Earned if Threshold Met	63,033
Threshold Percentage for Performance Target	60.00%
Maximum [Member] \| Company Share Appreciation [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percent of Shares Earned if Threshold Met	100.00%
Number of Shares Earned if Threshold Met	220,605
Threshold Percentage for Performance Target	35.00%
Maximum [Member] \| Peer Group Share Appreciation [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percent of Shares Earned if Threshold Met	100.00%
Number of Shares Earned if Threshold Met	94,545
Threshold Percentage for Performance Target	70.00%
January 4, 2016 [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Vesting Percentage	50.00%
January 3, 2017 [Member] \| Performance Shares [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Vesting Percentage	50.00%