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Partners' Equity of the Operating Partnership (Tables) | 12 Months Ended
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Dec. 31, 2018
Tanger Properties Limited Partnership [Member] |
Schedule of Partners' Equity of the Operating Partnership [Line Items] |
Schedule of Partners' Equity of the Operating Partnership | The following table sets forth the changes in outstanding partnership units for the years ended December 31, 2018, 2017 and 2016:
|  |  |  | Limited Partnership Units
|  | General partnership units |  | Class A |  | Class B |  | Total
Balance December 31, 2015 |  | 1,000,000 |  |  | 5,052,743 |  |  | 94,880,825 |  |  | 99,933,568 |
Units withheld for employee income taxes |  | — |  |  | — |  |  | (66,760 | ) |  | (66,760 | )
Exchange of Class A limited partnership units |  | — |  |  | (24,962 | ) |  | 24,962 |  |  | — |
Grant of restricted common share awards by the Company, net of forfeitures |  | — |  |  | — |  |  | 173,124 |  |  | 173,124 |
Issuance of deferred units |  | — |  |  | — |  |  | 24,040 |  |  | 24,040 |
Units issued upon exercise of options |  | — |  |  | — |  |  | 59,700 |  |  | 59,700 |
Balance December 31, 2016 |  | 1,000,000 |  |  | 5,027,781 |  |  | 95,095,891 |  |  | 100,123,672 |
Units withheld for employee income taxes |  | — |  |  | — |  |  | (69,886 | ) |  | (69,886 | )
Exchange of Class A limited partnership units |  | — |  |  | (32,348 | ) |  | 32,348 |  |  | — |
Grant of restricted common share awards by the Company, net of forfeitures |  | — |  |  | — |  |  | 411,968 |  |  | 411,968 |
Repurchase of units |  | — |  |  | — |  |  | (1,911,585 | ) |  | (1,911,585 | )
Units issued upon exercise of options |  | — |  |  | — |  |  | 1,800 |  |  | 1,800 |
Balance December 31, 2017 |  | 1,000,000 |  |  | 4,995,433 |  |  | 93,560,536 |  |  | 98,555,969 |
Units withheld for employee income taxes |  | — |  |  | — |  |  | (89,437 | ) |  | (89,437 | )
Exchange of Class A limited partnership units |  | — |  |  | (34,749 | ) |  | 34,749 |  |  | — |
Grant of restricted common share awards by the Company, net of forfeitures |  | — |  |  | — |  |  | 355,184 |  |  | 355,184 |
Repurchase of units |  | — |  |  | — |  |  | (919,249 | ) |  | (919,249 | )
Balance December 31, 2018 |  | 1,000,000 |  |  | 4,960,684 |  |  | 92,941,783 |  |  | 97,902,467 |

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