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EQUITY AND NONCONTROLLING INTEREST (Details) - USD ($) |  | 1 Months Ended | 2 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Jan. 15, 2015 | Apr. 29, 2020 | Apr. 29, 2020 | Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 200,000,000 |  |
Repurchase of common shares (in shares) |  |  |  | 4,452,223 |  |
Treasury stock acquired, average cost per share (in dollars per share) |  |  |  | $ 9.61 |  |
Repurchase of common shares |  |  |  | $ 42,801,000 |  |
Common stock, par value (in dollars per share) |  |  |  | $ 0.01 |  | $ 0.01
Distributions to redeemable NCI (in dollars per unit) |  |  |  | $ 0.22 | $ 0.22 |
Common limited partnership units issued (in shares) |  |  |  | 5,700,000 |  |
OP Units |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Conversion to stock, conversion rate |  |  |  | 1 |  |
LTIP Units |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Award vesting period |  |  |  | 2 years |  |
Conversion to stock, conversion rate |  |  |  | 1 |  |
Subsequent Event |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Repurchase of common shares (in shares) |  | 1,400,000 | 5,900,000 |  |  |
Treasury stock acquired, average cost per share (in dollars per share) |  | $ 7.98 | $ 9.22 |  |  |
Repurchase of common shares |  | $ 11,300,000 | $ 54,100,000 |  |  |
Operating Partnership | OP Units |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Noncontrolling interest percentage |  |  |  | 4.50% |  |
Walnut Creek (Mt. Diablo), CA | Noncontrolling Interest |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Noncontrolling interest percentage |  |  |  | 5.00% |  |
Vornado Realty L.P. | Operating Partnership | Parent |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Noncontrolling interest percentage |  |  |  | 96.00% |  |
Vornado Realty L.P. | Vornado Realty L.P. | Parent |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Noncontrolling interest percentage | 5.40% |  |  |  |  |

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