(Loss) Income Per Share/(Loss) Income Per Class A Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net income (loss) attributable to Vornado / Vornado Realty L.P.	$ (346,499)	$ 175,999	$ (297,005)
Preferred share dividends / unit distributions	(62,116)	(65,880)	(51,739)
Preferred share / unit issuance costs	0	(9,033)	0
NET (LOSS) INCOME attributable to common shareholders / Class A unitholders	(408,615)	101,086	(348,744)
Earnings allocated to unvested participating securities	(18)	(34)	(99)
Numerator for basic income (loss) per share / per Class A unit	$ (408,633)	$ 101,052	$ (348,843)
Denominator:
Denominator for basic income (loss) per share - weighted average shares (in shares)	191,775	191,551	191,146
Denominator for diluted income (loss) per share - weighted average shares and assumed conversions (in shares)	191,775	192,122	191,146
(LOSS) INCOME PER COMMON SHARE - BASIC:
Net (loss) income per common share (in dollars per share)	$ (2.13)	$ 0.53	$ (1.83)
(LOSS) INCOME PER COMMON SHARE - DILUTED:
Net (loss) income per common share (in dollars per share)	$ (2.13)	$ 0.53	$ (1.83)
Share-based payment awards
Denominator:
Share-based payment awards and convertible securities (in shares)	0	571	0
Vornado Realty L.P.
Numerator:
Net income (loss) attributable to Vornado / Vornado Realty L.P.	$ (376,875)	$ 183,539	$ (321,951)
Preferred share dividends / unit distributions	(62,231)	(66,035)	(51,904)
Preferred share / unit issuance costs	0	(9,033)	0
NET (LOSS) INCOME attributable to common shareholders / Class A unitholders	(439,106)	108,471	(373,855)
Earnings allocated to unvested participating securities	(2,215)	(2,668)	(5,417)
Numerator for basic income (loss) per share / per Class A unit	$ (441,321)	$ 105,803	$ (379,272)
Denominator:
Denominator for basic income (loss) per Class A unit - weighted average units and assumed conversions	205,315	204,728	203,503
Denominator for diluted income per Class A unit - weighted average units	205,315	205,644	203,503
(LOSS) INCOME PER CLASS A UNIT - BASIC:
Net (loss) income per Class A unit (in dollars per unit)	$ (2.15)	$ 0.52	$ (1.86)
(LOSS) INCOME PER CLASS A UNIT - DILUTED:
Net (loss) income per Class A unit (in dollars per unit)	$ (2.15)	$ 0.51	$ (1.86)
Vornado Realty L.P. | Share-based payment awards
Denominator:
Share-based payment awards and convertible securities (in shares)	0	916	0