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Shareholders' Equity of the Company (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 31, 2025 | Apr. 30, 2025 | Sep. 30, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | May 31, 2023 | Apr. 30, 2023 | Feb. 28, 2021
Distribution Made to Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common dividends (in dollars per share) |  | $ 0.2925 | $ 0.2925 |  |  |  | $ 0.275 | $ 0.86 | $ 0.81 |  |  |
Common distributions (in dollars per share) |  | $ 0.2925 |  |  |  |  |  |  |  |  |  |
Common shares, par value (in dollars per share) |  |  | $ 0.01 |  |  | $ 0.01 |  | $ 0.01 |  |  |  | $ 0.01
Aggregate gross sales price of common shares |  |  |  |  |  |  |  |  |  |  |  | $ 400.0
At-the-Market offering, stock remaining available for sale |  |  | $ 400.0 |  |  |  |  | $ 400.0 |  |  |  |
Authorized repurchase amount |  |  |  |  |  |  |  |  |  | $ 200.0 | $ 100.0 |
Shares repurchased during the period (in shares) |  |  | 0 |  |  |  | 0 | 0 | 0 |  |  |
Remaining amount authorized to be repurchase |  |  | $ 200.0 |  |  |  |  | $ 200.0 |  |  |  |
ATM Offering Program |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made to Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common shares sold (in shares) |  |  | 0 | 0 | 0 | 2,600,000 | 818,943 | 0 | 818,943 |  |  |
Estimated aggregate gross value |  |  |  |  |  | $ 90.9 | $ 25.0 |  | $ 25.0 |  |  |
Average price per share (usd per share) |  |  |  |  |  | $ 35.57 | $ 30.53 |  | $ 30.53 |  |  |
Forward Sale Agreements |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made to Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common shares sold (in shares) |  |  |  |  |  | 1,900,000 |  |  |  |  |  |
Estimated aggregate gross value |  |  | $ 69.3 |  |  | $ 69.7 |  |  |  |  |  |
Average price per share (usd per share) |  |  |  |  |  | $ 36.40 |  |  |  |  |  |
Tanger Properties Limited Partnership |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made to Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common distributions (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.81 |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Distribution Made to Limited Partner [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common dividends (in dollars per share) | $ 0.2925 |  |  |  |  |  |  |  |  |  |  |

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