Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	4.45% Series O	Series K Preferred Stock Preferred Shares / Units	Preferred Shares	Preferred Shares 4.45% Series O	Preferred Shares Series K Preferred Stock Preferred Shares / Units	Common Shares	Additional Capital	Earnings Less Than Distributions	Earnings Less Than Distributions Series K Preferred Stock Preferred Shares / Units	Accumulated Other Comprehensive (Loss) Income	Non-controlling Interests in Consolidated Subsidiaries
Beginning balance, shares at Dec. 31, 2020				48,793,000
Beginning balance, value at Dec. 31, 2020	$ 6,948,155			$ 1,182,339			$ 7,633	$ 8,192,507	$ (2,774,182)		$ (75,099)	$ 414,957
Beginning balance, shares at Dec. 31, 2020							191,355,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Vornado / Vornado Realty L.P.	148,584								148,584
Net income (loss) attributable to nonredeemable noncontrolling interests in consolidated subsidiaries	18,804											18,804
Dividends on common shares	(304,516)								(304,516)
Dividends on preferred shares / preferred units (see Note 12 for dividends per share amounts)	(49,734)								(49,734)
Series O Cumulative redeemable preferred shares/units issuance, shares					12,000,000
Series O Cumulative redeemable preferred shares/units issuance		$ 291,195			$ 291,195
Common shares issued: / Class A Units issued to Vornado
Upon redemption of Class A units, at redemption value, shares							313,000
Upon redemption of Class A units, at redemption value, value	13,058						$ 13	13,045
Under employees' share option plan, value	10							10
Under dividend reinvestment plan, shares							16,000
Under dividend reinvestment plan, value	654						$ 1	653
Contributions:
Contributions	2,657											2,657
Distributions:
Distributions	(150,934)											(150,934)
Conversion of Series A preferred shares to common shares / Conversion of Series A preferred units to Class A units, value	0			(13)				13
Conversion of Series A preferred shares to common shares / Conversion of Series A preferred units to Class A units, shares							1,000
Deferred compensation shares and options, shares							(4,000)
Deferred compensation shares and options	561							675	(114)
Other comprehensive income of nonconsolidated subsidiaries	6,381										6,381
Change in fair value of interest rate swaps and other	25,553										25,553
Unearned 2018 Out-Performance Plan awards acceleration	10,283							10,283
Redeemable Class A unit measurement adjustment	(78,848)							(78,848)
Series K cumulative redeemable preferred shares/units called for redemption, shares						(12,000,000)
Series K cumulative redeemable preferred shares/units called for redemption			$ (300,000)			$ (290,967)				$ (9,033)
Redeemable noncontrolling interests' share of above adjustments	(2,016)										(2,016)
Other, value	(22)			$ (55)			$ (1)	(1)	(4)		2	37
Ending balance, shares at Sep. 30, 2021				48,793,000
Ending balance, value at Sep. 30, 2021	6,579,825			$ 1,182,499			$ 7,646	8,138,337	(2,988,999)		(45,179)	285,521
Ending balance, shares at Sep. 30, 2021							191,681,000
Beginning balance, shares at Jun. 30, 2021				48,793,000
Beginning balance, value at Jun. 30, 2021	6,568,317			$ 1,182,291			$ 7,641	8,069,033	(2,925,161)		(51,437)	285,950
Beginning balance, shares at Jun. 30, 2021							191,561,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Vornado / Vornado Realty L.P.	63,522								63,522
Net income (loss) attributable to nonredeemable noncontrolling interests in consolidated subsidiaries	4,299											4,299
Dividends on common shares	(101,527)								(101,527)
Dividends on preferred shares / preferred units (see Note 12 for dividends per share amounts)	(16,800)								(16,800)
Series O Cumulative redeemable preferred shares/units issuance, shares					12,000,000
Series O Cumulative redeemable preferred shares/units issuance		$ 291,195			$ 291,195
Common shares issued: / Class A Units issued to Vornado
Upon redemption of Class A units, at redemption value, shares							114,000
Upon redemption of Class A units, at redemption value, value	4,749						$ 5	4,744
Under dividend reinvestment plan, shares							6,000
Under dividend reinvestment plan, value	224						$ 1	223
Contributions:
Contributions	1,110											1,110
Distributions:
Distributions	(5,877)											(5,877)
Conversion of Series A preferred shares to common shares / Conversion of Series A preferred units to Class A units, value	0			(13)				13
Conversion of Series A preferred shares to common shares / Conversion of Series A preferred units to Class A units, shares							1,000
Deferred compensation shares and options, shares							(1,000)
Deferred compensation shares and options	226							226
Other comprehensive income of nonconsolidated subsidiaries	1,322										1,322
Change in fair value of interest rate swaps and other	5,360										5,360
Redeemable Class A unit measurement adjustment	64,100							64,100
Series K cumulative redeemable preferred shares/units called for redemption, shares						(12,000,000)
Series K cumulative redeemable preferred shares/units called for redemption			$ (300,000)			$ (290,967)				$ (9,033)
Redeemable noncontrolling interests' share of above adjustments	(426)										(426)
Other, value	31			$ (7)			$ (1)	(2)			2	39
Ending balance, shares at Sep. 30, 2021				48,793,000
Ending balance, value at Sep. 30, 2021	$ 6,579,825			$ 1,182,499			$ 7,646	8,138,337	(2,988,999)		(45,179)	285,521
Ending balance, shares at Sep. 30, 2021							191,681,000
Beginning balance, shares at Dec. 31, 2021	48,792,902			48,793,000
Beginning balance, value at Dec. 31, 2021	$ 6,515,238			$ 1,182,459			$ 7,648	8,143,093	(3,079,320)		(17,534)	278,892
Beginning balance, shares at Dec. 31, 2021	191,723,608						191,724,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Vornado / Vornado Realty L.P.	$ 131,252								131,252
Net income (loss) attributable to nonredeemable noncontrolling interests in consolidated subsidiaries	13,236											13,236
Dividends on common shares	(304,896)								(304,896)
Dividends on preferred shares / preferred units (see Note 12 for dividends per share amounts)	(46,587)								(46,587)
Common shares issued: / Class A Units issued to Vornado
Upon redemption of Class A units, at redemption value, shares							76,000
Upon redemption of Class A units, at redemption value, value	2,569						$ 3	2,566
Under employees' share option plan, value	7							7
Under dividend reinvestment plan, shares							19,000
Under dividend reinvestment plan, value	655							655
Contributions:
Contributions	4,903											4,903
Distributions:
Distributions	(45,976)											(45,976)
Deferred compensation shares and options, shares							(2,000)
Deferred compensation shares and options	362							447	(85)
Other comprehensive income of nonconsolidated subsidiaries	19,084										19,084
Change in fair value of interest rate swaps and other	200,838										200,838
Redeemable Class A unit measurement adjustment	215,619							215,619
Redeemable noncontrolling interests' share of above adjustments	(15,044)										(17,210)	2,166
Other, value	$ 14						$ 1		6			7
Ending balance, shares at Sep. 30, 2022	48,792,902			48,793,000
Ending balance, value at Sep. 30, 2022	$ 6,691,274			$ 1,182,459			$ 7,652	8,362,387	(3,299,630)		185,178	253,228
Ending balance, shares at Sep. 30, 2022	191,816,684						191,817,000
Beginning balance, shares at Jun. 30, 2022				48,793,000
Beginning balance, value at Jun. 30, 2022	$ 6,650,813			$ 1,182,459			$ 7,650	8,339,161	(3,205,751)		73,300	253,994
Beginning balance, shares at Jun. 30, 2022							191,775,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Vornado / Vornado Realty L.P.	23,298								23,298
Net income (loss) attributable to nonredeemable noncontrolling interests in consolidated subsidiaries	967											967
Dividends on common shares	(101,656)								(101,656)
Dividends on preferred shares / preferred units (see Note 12 for dividends per share amounts)	(15,529)								(15,529)
Common shares issued: / Class A Units issued to Vornado
Upon redemption of Class A units, at redemption value, shares							34,000
Upon redemption of Class A units, at redemption value, value	992						$ 1	991
Under dividend reinvestment plan, shares							7,000
Under dividend reinvestment plan, value	221							221
Contributions:
Contributions	650											650
Distributions:
Distributions	(4,548)											(4,548)
Deferred compensation shares and options	155							155
Other comprehensive income of nonconsolidated subsidiaries	5,124										5,124
Change in fair value of interest rate swaps and other	117,219										117,219
Redeemable Class A unit measurement adjustment	21,857							21,857
Redeemable noncontrolling interests' share of above adjustments	(8,299)										(10,465)	2,166
Other, shares							1,000
Other, value	$ 10						$ 1	2	8			(1)
Ending balance, shares at Sep. 30, 2022	48,792,902			48,793,000
Ending balance, value at Sep. 30, 2022	$ 6,691,274			$ 1,182,459			$ 7,652	$ 8,362,387	$ (3,299,630)		$ 185,178	$ 253,228
Ending balance, shares at Sep. 30, 2022	191,816,684						191,817,000