Redeemable Noncontrolling Interests (Activity of Redeemable Noncontrolling Interests) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Redeemable Noncontrolling Interests Rollforward
Beginning balance			$ 638,448
Net (loss) income	$ (1,690)	$ 4,736	724	$ 8,773
Other comprehensive (loss) income	0	0	0	0
Ending balance	808,189		808,189
Partnership Interest
Redeemable Noncontrolling Interests Rollforward
Beginning balance	454,693	410,276	483,786	348,692
Net (loss) income	(1,690)	4,736	724	8,773
Other comprehensive (loss) income	(9,454)	1,634	(5,872)	26
Distributions	(29)	(29)	(86)	(5,658)
Other, net	6,509	9,127	22,660	12,356
Ending balance	673,940	415,175	673,940	415,175
Partnership Interest \| Class A Unit
Redeemable Noncontrolling Interests Rollforward
Redemption of Class A units for Vornado common shares, at redemption value	(4,779)	(1,615)	(7,819)	(7,173)
Redeemable Class A unit measurement adjustment	228,690	(8,954)	180,547	58,159
Subsidiary
Redeemable Noncontrolling Interests Rollforward
Beginning balance	138,772	70,020	154,662	88,040
Net (loss) income	(7,862)	(11,191)	(23,752)	(29,211)
Contributions	3,339	0	3,339	0
Ending balance	$ 134,249	$ 58,829	$ 134,249	$ 58,829

Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

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Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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Adjustments to reflect redeemable Class A Operating Partnership units

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Other Net Attributable To Redeemable Noncontrolling Interest

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Redeemable Noncontrolling Interest, Increase from Contributions to Noncontrolling Interest Holders

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