Stock-based Compensation	6 Months Ended
Stock-based Compensation	Jun. 30, 2017
Stock-based Compensation [Abstract]
Stock-based Compensation	14. Stock-based Compensation Vornado’s 2010 Omnibus Share Plan provides for grants of incentive and non-qualified Vornado stock options, restricted stock, restricted Operating Partnership units and Out-Performance Plan awards to certain of our employees and officers. We account for all equity-based compensation in accordance with ASC 718. Equity-based compensation expense was $7,349,000 and $7,215,000 for the three months ended June 30, 2017 and 2016, respectively, and $21,626,000 and $21,786,000 for the six months ended June 30, 2017 and 2016, respectively.

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.