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Stock-based Compensation (Vornado Stock Options, Performance AO LTIP Units, AO LTIP Units & LTIP Units) (Narrative) (Details) - USD ($)		12 Months Ended
	Jun. 29, 2023	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from stock options exercised		$ 42,000	$ 0	$ 0
Exercises in period, intrinsic value		6,000
Aggregate intrinsic value		0
Options exercisable		$ 0
Performance AO LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value				48,710,000
Vornado stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance vesting period		4 years
Awards expiration term		10 years
Performance AO LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards expiration term		10 years
Aggregate intrinsic value		$ 240,472,000
Performance AO LTIP Units \| 2023 Omnibus Share Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share price (in dollars per share)	$ 16.68
Increase in share price (as a percent)		75.00%
Performance AO LTIP Units \| 2023 Omnibus Share Plan \| Fourth Anniversary Of The Grant Date \| Performance condition 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights (as a percent)	80.00%
2023 Performance AO LTIP Units \| 2023 Omnibus Share Plan \| Third Anniversary Of The Grant Date \| Performance condition 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights (as a percent)	20.00%
AO LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards expiration term		10 years
Threshold level (as a percent)		100.00%
Special allocation (as a percent)		10.00%
Special distribution (as a percent)		10.00%
Options exercisable		$ 0
LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value		2,342,000	2,104,000	45,468,000
Distributions, share-based compensation		1,979,000	2,160,000	1,302,000
Vested in period, fair value		$ 8,949,000	$ 10,707,000	$ 37,198,000
LTIP Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance vesting period		3 years
LTIP Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance vesting period		4 years