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	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	Vornado Realty L.P.	Vornado Realty L.P. 4.45% Series O	Vornado Realty L.P. Series K Preferred Stock Preferred Shares / Units	Vornado Realty L.P. Preferred Shares	Vornado Realty L.P. Preferred Shares 4.45% Series O	Vornado Realty L.P. Preferred Shares Series K Preferred Stock Preferred Shares / Units	Vornado Realty L.P. Class A Units Owned by Vornado	Vornado Realty L.P. Earnings Less Than Distributions	Vornado Realty L.P. Earnings Less Than Distributions Series K Preferred Stock Preferred Shares / Units	Vornado Realty L.P. Accumulated Other Comprehensive (Loss) Income	Vornado Realty L.P. Non-controlling Interests in Consolidated Subsidiaries
Beginning balance, shares at Dec. 31, 2020				48,793,000										48,793,000
Beginning balance, value at Dec. 31, 2020	$ 6,948,155			$ 1,182,339			$ (2,774,182)		$ (75,099)	$ 414,957	$ 6,948,155			$ 1,182,339			$ 8,200,140	$ (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				155,267							155,267
Net income attributable to redeemable partnership units	(6,683)										(6,683)							(6,683)
Net income (loss) attributable to nonredeemable noncontrolling interests in consolidated subsidiaries	18,804									18,804	18,804										18,804
Distributions to Vornado											(304,516)							(304,516)
Dividends on preferred shares / preferred units (see Note 12 for dividends per share amounts)	(49,734)						(49,734)				(49,734)							(49,734)
Series O Cumulative redeemable preferred shares/units issuance, shares					12,000,000										12,000,000
Series O Cumulative redeemable preferred shares/units issuance		$ 291,195			$ 291,195							$ 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										13,058						$ 13,058
Under employees' share option plan, value	10										10						$ 10
Under dividend reinvestment plan, shares																	16,000
Under dividend reinvestment plan, value	654										654						$ 654
Contributions:
Contributions	2,657									2,657	2,657										2,657
Distributions:
Distributions	(150,934)									(150,934)	(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)							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						(114)				561						$ 675	(114)
Other comprehensive income of nonconsolidated subsidiaries	6,381								6,381		6,381									6,381
Change in fair value of interest rate swaps and other	25,553								25,553		25,553									25,553
Unearned 2018 Out-Performance Plan awards acceleration	10,283										10,283						10,283
Redeemable Class A unit measurement adjustment	(78,848)										(78,848)						(78,848)
Series K cumulative redeemable preferred shares/units called for redemption, shares						(12,000,000)										(12,000,000)
Series K cumulative redeemable preferred shares/units called for redemption			$ (300,000)			$ (290,967)		$ (9,033)					$ (300,000)			$ (290,967)			$ (9,033)
Redeemable partnership units' share of above adjustments											(2,016)									(2,016)
Redeemable noncontrolling interests' share of above adjustments	(2,016)								(2,016)
Other, value	(22)			$ (55)			(4)		2	37	(22)			$ (55)			(2)	(4)		2	37
Ending balance, shares at Sep. 30, 2021				48,793,000										48,793,000
Ending balance, value at Sep. 30, 2021	6,579,825			$ 1,182,499			(2,988,999)		(45,179)	285,521	6,579,825			$ 1,182,499			$ 8,145,983	(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										48,793,000
Beginning balance, value at Jun. 30, 2021	6,568,317			$ 1,182,291			(2,925,161)		(51,437)	285,950	6,568,317			$ 1,182,291			$ 8,076,674	(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				66,340							66,340
Net income attributable to redeemable partnership units	(2,818)										(2,818)							(2,818)
Net income (loss) attributable to nonredeemable noncontrolling interests in consolidated subsidiaries	4,299									4,299	4,299										4,299
Distributions to Vornado											(101,527)							(101,527)
Dividends on preferred shares / preferred units (see Note 12 for dividends per share amounts)	(16,800)						(16,800)				(16,800)							(16,800)
Series O Cumulative redeemable preferred shares/units issuance, shares					12,000,000										12,000,000
Series O Cumulative redeemable preferred shares/units issuance		$ 291,195			$ 291,195							$ 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										4,749						$ 4,749
Under dividend reinvestment plan, shares																	6,000
Under dividend reinvestment plan, value	224										224						$ 224
Contributions:
Contributions	1,110									1,110	1,110										1,110
Distributions:
Distributions	(5,877)									(5,877)	(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)							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						$ 226	0
Other comprehensive income of nonconsolidated subsidiaries	1,322								1,322		1,322									1,322
Change in fair value of interest rate swaps and other	5,360								5,360		5,360									5,360
Redeemable Class A unit measurement adjustment	64,100										64,100						64,100
Series K cumulative redeemable preferred shares/units called for redemption, shares						(12,000,000)										(12,000,000)
Series K cumulative redeemable preferred shares/units called for redemption			$ (300,000)			$ (290,967)		$ (9,033)					$ (300,000)			$ (290,967)			$ (9,033)
Redeemable partnership units' share of above adjustments											(426)									(426)
Redeemable noncontrolling interests' share of above adjustments	(426)								(426)
Other, value	31			$ (7)					2	39	31			$ (7)			(3)			2	39
Ending balance, shares at Sep. 30, 2021				48,793,000										48,793,000
Ending balance, value at Sep. 30, 2021	$ 6,579,825			$ 1,182,499			(2,988,999)		(45,179)	285,521	6,579,825			$ 1,182,499			$ 8,145,983	(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										48,793,000
Beginning balance, value at Dec. 31, 2021	$ 6,515,238			$ 1,182,459			(3,079,320)		(17,534)	278,892	6,515,238			$ 1,182,459			$ 8,150,741	(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				137,634							137,634
Net income attributable to redeemable partnership units	(6,382)										(6,382)							(6,382)
Net income (loss) attributable to nonredeemable noncontrolling interests in consolidated subsidiaries	13,236									13,236	13,236										13,236
Distributions to Vornado											(304,896)							(304,896)
Dividends on preferred shares / preferred units (see Note 12 for dividends per share amounts)	(46,587)						(46,587)				(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										2,569						$ 2,569
Under employees' share option plan, value	7										7						$ 7
Under dividend reinvestment plan, shares																	19,000
Under dividend reinvestment plan, value	655										655						$ 655
Contributions:
Contributions	4,903									4,903	4,903										4,903
Distributions:
Distributions	(45,976)									(45,976)	(45,976)										(45,976)
Deferred compensation shares and options, shares																	(2,000)
Deferred compensation shares and options	362						(85)				362						$ 447	(85)
Other comprehensive income of nonconsolidated subsidiaries	19,084								19,084		19,084									19,084
Change in fair value of interest rate swaps and other	200,838								200,838		200,838									200,838
Redeemable Class A unit measurement adjustment	215,619										215,619						215,619
Redeemable noncontrolling interests' share of above adjustments	(15,044)								(17,210)	2,166	(15,044)									(17,210)	2,166
Other, value	$ 14						6			7	14						1	6			7
Ending balance, shares at Sep. 30, 2022	48,792,902			48,793,000										48,793,000
Ending balance, value at Sep. 30, 2022	$ 6,691,274			$ 1,182,459			(3,299,630)		185,178	253,228	6,691,274			$ 1,182,459			$ 8,370,039	(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										48,793,000
Beginning balance, value at Jun. 30, 2022	$ 6,650,813			$ 1,182,459			(3,205,751)		73,300	253,994	6,650,813			$ 1,182,459			$ 8,346,811	(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				23,904							23,904
Net income attributable to redeemable partnership units	(606)										(606)							(606)
Net income (loss) attributable to nonredeemable noncontrolling interests in consolidated subsidiaries	967									967	967										967
Distributions to Vornado											(101,656)							(101,656)
Dividends on preferred shares / preferred units (see Note 12 for dividends per share amounts)	(15,529)						(15,529)				(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										992						$ 992
Under dividend reinvestment plan, shares																	7,000
Under dividend reinvestment plan, value	221										221						$ 221
Contributions:
Contributions	650									650	650										650
Distributions:
Distributions	(4,548)									(4,548)	(4,548)										(4,548)
Deferred compensation shares and options	155										155						155
Other comprehensive income of nonconsolidated subsidiaries	5,124								5,124		5,124									5,124
Change in fair value of interest rate swaps and other	117,219								117,219		117,219									117,219
Redeemable Class A unit measurement adjustment	21,857										21,857						$ 21,857
Redeemable noncontrolling interests' share of above adjustments	(8,299)								(10,465)	2,166	(8,299)									(10,465)	2,166
Other, shares																	1,000
Other, value	$ 10						8			(1)	10						$ 3	8			(1)
Ending balance, shares at Sep. 30, 2022	48,792,902			48,793,000										48,793,000
Ending balance, value at Sep. 30, 2022	$ 6,691,274			$ 1,182,459			$ (3,299,630)		$ 185,178	$ 253,228	$ 6,691,274			$ 1,182,459			$ 8,370,039	$ (3,299,630)		$ 185,178	$ 253,228
Ending balance, shares at Sep. 30, 2022	191,816,684																191,817,000