Redeemable Noncontrolling Interests (Activity of Redeemable Noncontrolling Interests) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Redeemable Noncontrolling Interests Rollforward
Beginning balance			$ 834,658
Net income (loss)	$ 1,036	$ (1,690)	73,788	$ 724
Other comprehensive loss	0	0	0	0
Ending balance	781,271		781,271
Partnership Interest
Redeemable Noncontrolling Interests Rollforward
Beginning balance	642,465	454,693	711,943	483,786
Net income (loss)	1,036	(1,690)	73,788	724
Other comprehensive loss	(509)	(9,454)	(4,780)	(5,872)
Distributions	(29)	(29)	(551)	(86)
Other, net	5,514	6,509	19,043	22,660
Ending balance	680,154	673,940	680,154	673,940
Partnership Interest \| Class A Unit
Redeemable Noncontrolling Interests Rollforward
Redemption of Class A units for Vornado common shares, at redemption value	(551)	(4,779)	(49,129)	(7,819)
Redeemable Class A unit measurement adjustment	32,228	228,690	(70,160)	180,547
Subsidiary
Redeemable Noncontrolling Interests Rollforward
Beginning balance	107,632	138,772	122,715	154,662
Net income (loss)	(7,769)	(7,862)	(22,195)	(23,752)
Contributions	1,254	3,339	1,254	3,339
Distributions	0	0	(657)	0
Ending balance	$ 101,117	$ 134,249	$ 101,117	$ 134,249

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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Redeemable Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders

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Redeemable Noncontrolling Interest, Increase from Contributions to Noncontrolling Interest Holders

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