Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
REVENUES:
Total revenues	$ 1,527,951	$ 1,924,700	$ 2,163,720
EXPENSES:
Operating	(789,066)	(917,981)	(963,478)
Depreciation and amortization	(399,695)	(419,107)	(446,570)
General and administrative	(181,509)	(169,920)	(141,871)
(Expense) benefit from deferred compensation plan liability	(6,443)	(11,609)	2,480
Impairment losses and transaction related costs, net	(174,027)	(106,538)	(31,320)
Total expenses	(1,550,740)	(1,625,155)	(1,580,759)
(Loss) income from partially owned entities	(329,112)	78,865	9,149
Loss from real estate fund investments	(226,327)	(104,082)	(89,231)
Interest and other investment (loss) income, net	(5,499)	21,819	17,057
Income (loss) from deferred compensation plan assets	6,443	11,609	(2,480)
Interest and debt expense	(229,251)	(286,623)	(347,949)
Net gain on transfer to Fifth Avenue and Times Square JV	0	2,571,099	0
Purchase price fair value adjustment	0	0	44,060
Net gains on disposition of wholly owned and partially owned assets	381,320	845,499	246,031
(Loss) income before income taxes	(425,215)	3,437,731	459,598
Income tax expense	(36,630)	(103,439)	(37,633)
(Loss) income from continuing operations	(461,845)	3,334,292	421,965
(Loss) income from discontinued operations	0	(30)	638
Net (loss) income	(461,845)	3,334,262	422,603
Less net loss (income) attributable to noncontrolling interests in:
Consolidated subsidiaries	139,894	24,547	53,023
Operating Partnership	24,946	(210,872)	(25,672)
Net (loss) income attributable to Vornado / Vornado Realty L.P.	(297,005)	3,147,937	449,954
Preferred share dividends / unit distributions	(51,739)	(50,131)	(50,636)
Preferred share / unit issuance costs	0	0	(14,486)
NET (LOSS) INCOME attributable to common shareholders / Class A unitholders	$ (348,744)	$ 3,097,806	$ 384,832
(LOSS) INCOME PER COMMON SHARE - BASIC:
Net (loss) income per common share - Basic (in dollars per share)	$ (1.83)	$ 16.23	$ 2.02
Weighted average shares outstanding	191,146	190,801	190,219
(LOSS) INCOME PER COMMON SHARE - DILUTED:
Net (loss) income per common share - Diluted (in dollars per share)	$ (1.83)	$ 16.21	$ 2.01
Weighted average shares outstanding	191,146	191,053	191,290
Vornado Realty L.P.
REVENUES:
Total revenues	$ 1,527,951	$ 1,924,700	$ 2,163,720
EXPENSES:
Operating	(789,066)	(917,981)	(963,478)
Depreciation and amortization	(399,695)	(419,107)	(446,570)
General and administrative	(181,509)	(169,920)	(141,871)
(Expense) benefit from deferred compensation plan liability	(6,443)	(11,609)	2,480
Impairment losses and transaction related costs, net	(174,027)	(106,538)	(31,320)
Total expenses	(1,550,740)	(1,625,155)	(1,580,759)
(Loss) income from partially owned entities	(329,112)	78,865	9,149
Loss from real estate fund investments	(226,327)	(104,082)	(89,231)
Interest and other investment (loss) income, net	(5,499)	21,819	17,057
Income (loss) from deferred compensation plan assets	6,443	11,609	(2,480)
Interest and debt expense	(229,251)	(286,623)	(347,949)
Net gain on transfer to Fifth Avenue and Times Square JV	0	2,571,099	0
Purchase price fair value adjustment	0	0	44,060
Net gains on disposition of wholly owned and partially owned assets	381,320	845,499	246,031
(Loss) income before income taxes	(425,215)	3,437,731	459,598
Income tax expense	(36,630)	(103,439)	(37,633)
(Loss) income from continuing operations	(461,845)	3,334,292	421,965
(Loss) income from discontinued operations	0	(30)	638
Net (loss) income	(461,845)	3,334,262	422,603
Less net loss (income) attributable to noncontrolling interests in:
Consolidated subsidiaries	139,894	24,547	53,023
Operating Partnership	24,946	(210,872)	(25,672)
Net (loss) income attributable to Vornado / Vornado Realty L.P.	(321,951)	3,358,809	475,626
Preferred share dividends / unit distributions	(51,904)	(50,296)	(50,830)
Preferred share / unit issuance costs	0	0	(14,486)
NET (LOSS) INCOME attributable to common shareholders / Class A unitholders	$ (373,855)	$ 3,308,513	$ 410,310
(LOSS) INCOME PER CLASS A UNIT - BASIC:
(Loss) income from continuing operations, net (in dollars per share)	$ (1.86)	$ 16.22	$ 2.01
Income (loss) from discontinued operations, net (in dollars per share)	0	0	0.01
Net (loss) income per Class A unit (in dollars per share)	$ (1.86)	$ 16.22	$ 2.02
Weighted average units outstanding	203,503	202,947	202,068
(LOSS) INCOME PER CLASS A UNIT - DILUTED:
Net (loss) income per Class A unit (in dollars per share)	$ (1.86)	$ 16.19	$ 2.00
Weighted average units outstanding	203,503	203,248	203,412
Rental revenues
REVENUES:
Total revenues	$ 1,377,635	$ 1,767,222	$ 2,007,333
Rental revenues | Vornado Realty L.P.
REVENUES:
Total revenues	1,377,635	1,767,222	2,007,333
Fee and other income
REVENUES:
Total revenues	150,316	157,478	156,387
Fee and other income | Vornado Realty L.P.
REVENUES:
Total revenues	$ 150,316	$ 157,478	$ 156,387