Income (Loss) Per Share/Income (Loss) Per Class A Unit (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares
Earnings Per Share [Abstract]
Net income (loss) allocation	1
Net Income (Loss) Attributable to Parent [Abstract]
Net income (loss) attributable to Vornado / Vornado Realty L.P.	$ 105,494	$ (346,499)	$ 175,999
Preferred share dividends	(62,116)	(62,116)	(65,880)
Series K preferred share / unit issuance costs	0	0	(9,033)
Net income (loss) attributable to common shareholders/Class A unitholders	43,378	(408,615)	101,086
Distributions and earnings allocated to unvested participating securities	(2)	(18)	(34)
Numerator for basic income (loss) per common share / per Class A unit	$ 43,376	$ (408,633)	$ 101,052
Denominator:
Denominator for basic income (loss) per common share - weighted average shares (in shares) | shares	191,005	191,775	191,551
Share-based payment awards (in shares) | shares	851	0	571
Denominator for diluted income (loss) per common share - weighted average shares and assumed conversions (in shares) | shares	191,856	191,775	192,122
INCOME (LOSS) PER COMMON SHARE - BASIC:
Net income (loss) per common share (in dollars per share) | $ / shares	$ 0.23	$ (2.13)	$ 0.53
INCOME (LOSS) PER COMMON SHARE - DILUTED:
Net income (loss) per common share (in dollars per share) | $ / shares	$ 0.23	$ (2.13)	$ 0.53
INCOME (LOSS) PER CLASS A UNIT - DILUTED:
Weighted average common share / class A unit equivalents of excluded dilutive securities due to anti-dilutive effect (in shares) | shares	3,458	1,706	164
Vornado Realty L.P.
Net Income (Loss) Attributable to Parent [Abstract]
Net income (loss) attributable to Vornado / Vornado Realty L.P.	$ 108,855	$ (376,875)	$ 183,539
Preferred share dividends	(62,231)	(62,231)	(66,035)
Series K preferred share / unit issuance costs	0	0	(9,033)
Net income (loss) attributable to common shareholders/Class A unitholders	46,624	(439,106)	108,471
Distributions and earnings allocated to unvested participating securities	(1,323)	(2,215)	(2,668)
Numerator for basic income (loss) per common share / per Class A unit	$ 45,301	$ (441,321)	$ 105,803
Denominator:
Denominator for basic income (loss) per Class A unit – weighted average units (in shares) | shares	205,105	205,315	204,728
Share-based payment awards (in shares) | shares	851	0	916
Denominator for diluted income (loss) per Class A unit – weighted average units and assumed conversions (in shares) | shares	205,956	205,315	205,644
INCOME (LOSS) PER CLASS A UNIT - BASIC:
Net income (loss) per Class A unit (in dollars per unit) | $ / shares	$ 0.22	$ (2.15)	$ 0.52
INCOME (LOSS) PER CLASS A UNIT - DILUTED:
Net income (loss) per Class A unit (in dollars per unit) | $ / shares	$ 0.22	$ (2.15)	$ 0.51
Weighted average common share / class A unit equivalents of excluded dilutive securities due to anti-dilutive effect (in shares) | shares	3,458	1,706	164