Incentive Compensation	6 Months Ended
Jun. 30, 2014
Incentive Compensation [Abstract]
Incentive Compensation	15. Incentive Compensation Vornado's 2010 Omnibus Share Plan (the “Plan”) provides for grants of incentive and non-qualified Vornado stock options, Vornado restricted stock, restricted units and out-performance plan awards to certain of Vornado's employees and officers. We account for all stock-based compensation in accordance with ASC 718, Compensation – Stock Compensation. Stock-based compensation expense was $9,051,000 and $9,129,000 in the three months ended June 30, 2014 and 2013, respectively and $20,075,000 and $16,595,000 in the six months ended June 30, 2014 and 2013, respectively. On January 10, 2014, the Compensation Committee of Vornado's Board of Trustees approved the 2014 Outperformance Plan, a multi-year, performance-based equity compensation plan and related form of award agreement (the “2014 OPP”). Under the 2014 OPP, participants have the opportunity to earn compensation payable in the form of units during a three-year performance measurement period, if and only if Vornado outperforms a predetermined total shareholder return (“TSR”) and/or outperforms the market with respect to relative TSR. Awards under the 2014 OPP may be earned if Vornado (i) achieves a TSR level greater than 7% per annum, or 21% over the three-year performance measurement period (the “Absolute Component”), and/or (ii) achieves a TSR above that of the SNL US REIT Index (the “Index”) over a three-year performance measurement period (the “Relative Component”). To the extent awards would be earned under the Absolute Component but Vornado underperforms the Index, such awards earned under the Absolute Component would be reduced (and potentially fully negated) based on the degree to which Vornado underperforms the Index. In certain circumstances, in the event Vornado outperforms the Index but awards would not otherwise be earned under the Absolute Component, awards may be increased under the Relative Component. To the extent awards would otherwise be earned under the Relative Component but Vornado fails to achieve at least a 6% per annum absolute TSR, such awards earned under the Relative Component would be reduced based on Vornado's absolute TSR, with no awards being earned in the event Vornado's TSR during the applicable measurement period is 0% or negative, irrespective of the degree to which Vornado may outperform the Index. If the designated performance objectives are achieved, OPP Units are also subject to time-based vesting requirements. Awards earned under the 2014 OPP vest 33% in year three, 33% in year four and 34% in year five. Distributions on awards earned accrue during the performance measurement period. In addition, Vornado's executive officers (for the purposes of Section 16 of the Exchange Act) are required to hold any earned OPP awards (or related equity) for at least one year following vesting.

Incentive Compensation

6 Months Ended

Jun. 30, 2014

15. Incentive Compensation

Vornado's 2010 Omnibus Share Plan (the “Plan”) provides for grants of incentive and non-qualified Vornado stock options, Vornado restricted stock, restricted units and out-performance plan awards to certain of Vornado's employees and officers. We account for all stock-based compensation in accordance with ASC 718, Compensation – Stock Compensation. Stock-based compensation expense was $9,051,000 and $9,129,000 in the three months ended June 30, 2014 and 2013, respectively and $20,075,000 and $16,595,000 in the six months ended June 30, 2014 and 2013, respectively.

On January 10, 2014, the Compensation Committee of Vornado's Board of Trustees approved the 2014 Outperformance Plan, a multi-year, performance-based equity compensation plan and related form of award agreement (the “2014 OPP”). Under the 2014 OPP, participants have the opportunity to earn compensation payable in the form of units during a three-year performance measurement period, if and only if Vornado outperforms a predetermined total shareholder return (“TSR”) and/or outperforms the market with respect to relative TSR. Awards under the 2014 OPP may be earned if Vornado (i) achieves a TSR level greater than 7% per annum, or 21% over the three-year performance measurement period (the “Absolute Component”), and/or (ii) achieves a TSR above that of the SNL US REIT Index (the “Index”) over a three-year performance measurement period (the “Relative Component”). To the extent awards would be earned under the Absolute Component but Vornado underperforms the Index, such awards earned under the Absolute Component would be reduced (and potentially fully negated) based on the degree to which Vornado underperforms the Index. In certain circumstances, in the event Vornado outperforms the Index but awards would not otherwise be earned under the Absolute Component, awards may be increased under the Relative Component. To the extent awards would otherwise be earned under the Relative Component but Vornado fails to achieve at least a 6% per annum absolute TSR, such awards earned under the Relative Component would be reduced based on Vornado's absolute TSR, with no awards being earned in the event Vornado's TSR during the applicable measurement period is 0% or negative, irrespective of the degree to which Vornado may outperform the Index. If the designated performance objectives are achieved, OPP Units are also subject to time-based vesting requirements. Awards earned under the 2014 OPP vest 33% in year three, 33% in year four and 34% in year five. Distributions on awards earned accrue during the performance measurement period. In addition, Vornado's executive officers (for the purposes of Section 16 of the Exchange Act) are required to hold any earned OPP awards (or related equity) for at least one year following vesting.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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