Conversion to Stock, Conversion Rate

No definition available.

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- Definition

Face amount or stated value per share of common stock.

+ References

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- Definition

Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The number of units of other ownership interests issued in a limited partnership or master limited partnership. Does not include limited or general partners' ownership interests.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

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EQUITY AND NONCONTROLLING INTEREST (Details) - USD ($)		3 Months Ended		4 Months Ended	6 Months Ended
EQUITY AND NONCONTROLLING INTEREST (Details) - USD ($)	Jan. 15, 2015	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Noncontrolling Interest [Line Items]
Stock Repurchase Program, Authorized Amount		$ 200,000,000		$ 200,000,000	$ 200,000,000
Repurchase of common shares (in shares)		1,421,700		5,900,000	5,873,923
Treasury stock acquired, average cost per share (in dollars per share)		$ 7.98		$ 9.22
Repurchase of common shares		$ 11,340,000		$ 54,100,000	$ 54,141,000
Common stock, par value (in dollars per share)		$ 0.01		$ 0.01	$ 0.01		$ 0.01
Distributions to redeemable NCI (in dollars per unit)			$ 0.22		$ 0.22	$ 0.44
Common limited partnership units issued (in shares)		5,700,000		5,700,000	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
Operating Partnership \| OP Units
Noncontrolling Interest [Line Items]
Noncontrolling interest percentage		4.00%			4.20%
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					96.10%
Vornado Realty L.P. \| Vornado Realty L.P. \| Parent
Noncontrolling Interest [Line Items]
Noncontrolling interest percentage	5.40%