Investments in Partially Owned Entities (Fifth Avenue and Times Square JV) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Apr. 18, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule Of Equity Method Investments
Transfer tax refund		$ 0	$ 10,087	$ 35,384	$ 35,811
Fifth Avenue and Times Square JV
Schedule Of Equity Method Investments
Equity method ownership percentage		51.50%		51.50%
Real estate basis difference, carrying amount		$ 378,876		$ 378,876
Transfer tax refund	$ 13,613
Fifth Avenue and Times Square JV | Joint Venture
Schedule Of Equity Method Investments
Aggregate of preferred equity interests		$ 1,828,000		$ 1,828,000
Fifth Avenue and Times Square JV | Joint Venture | Percentage For First Five Years
Schedule Of Equity Method Investments
Debt instrument, interest rate, stated percentage (percent)		4.25%		4.25%
Fifth Avenue and Times Square JV | Joint Venture | Percentage After Fifth Anniversary
Schedule Of Equity Method Investments
Debt instrument, interest rate, stated percentage (percent)		4.75%		4.75%
Debt term (in years)		5 years		5 years
Fifth Avenue and Times Square JV | Joint Venture | Investors
Schedule Of Equity Method Investments
Equity method ownership percentage		48.50%		48.50%
Equity method effective ownership percentage		47.20%		47.20%
Fifth Avenue and Times Square JV | Vornado Realty Trust
Schedule Of Equity Method Investments
Equity method ownership percentage		51.50%		51.50%
Equity method effective ownership percentage		51.00%		51.00%