Income Per Share/Income Per Class A Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net income (loss) attributable to Vornado / Vornado Realty L.P.	$ 23,298	$ 63,522	$ 131,252	$ 148,584
Preferred share dividends / unit distributions	(15,529)	(16,800)	(46,587)	(49,734)
Series K preferred share / unit issuance costs	0	(9,033)	0	(9,033)
NET INCOME attributable to common shareholders / Class A unitholders	7,769	37,689	84,665	89,817
Earnings allocated to unvested participating securities	(4)	(8)	(14)	(26)
Numerator for basic income per share	7,765	37,681	84,651	89,791
Impact of assumed conversion of dilutive convertible securities	0	0	(243)	0
Numerator for diluted income (loss) per share / Class A unit	$ 7,765	$ 37,681	$ 84,408	$ 89,791
Denominator:
Denominator for basic income (loss) per share - weighted average shares (in shares)	191,793	191,577	191,756	191,508
Denominator for diluted income (loss) per share - weighted average shares and assumed conversions (in shares)	192,018	192,041	192,042	192,151
INCOME PER COMMON SHARE - BASIC:
Net income per common share (in dollars per share)	$ 0.04	$ 0.20	$ 0.44	$ 0.47
INCOME PER COMMON SHARE - DILUTED:
Net income per common share (in dollars per share)	$ 0.04	$ 0.20	$ 0.44	$ 0.47
Share-based payment awards
Denominator:
Effect of dilutive securities	225	464	266	643
Convertible securities
Denominator:
Effect of dilutive securities	0	0	20	0
Vornado Realty L.P.
Numerator:
Net income (loss) attributable to Vornado / Vornado Realty L.P.	$ 23,904	$ 66,340	$ 137,634	$ 155,267
Preferred share dividends / unit distributions	(15,558)	(16,842)	(46,673)	(49,858)
Series K preferred share / unit issuance costs	0	(9,033)	0	(9,033)
NET INCOME attributable to common shareholders / Class A unitholders	8,346	40,465	90,961	96,376
Earnings allocated to unvested participating securities	(498)	(649)	(1,719)	(2,034)
Numerator for basic income per share	7,848	39,816	89,242	94,342
Impact of assumed conversion of dilutive convertible securities	0	0	(243)	0
Numerator for diluted income (loss) per share / Class A unit	$ 7,848	$ 39,816	$ 88,999	$ 94,342
Denominator:
Denominator for basic income (loss) per Class A unit - weighted average units	205,410	204,864	205,271	204,663
Denominator for diluted income (loss) per Class A unit - weighted average units and assumed conversions	205,912	205,703	205,924	205,616
INCOME PER CLASS A UNIT - BASIC:
Net income per Class A unit (in dollars per unit)	$ 0.04	$ 0.19	$ 0.43	$ 0.46
INCOME PER CLASS A UNIT - DILUTED:
Net income per Class A unit (in dollars per unit)	$ 0.04	$ 0.19	$ 0.43	$ 0.46
Vornado Realty L.P. | Share-based payment awards
Denominator:
Effect of dilutive securities	502	839	633	953
Vornado Realty L.P. | Convertible securities
Denominator:
Effect of dilutive securities	0	0	20	0