Stock-based Compensation (Schedule Of Share Based Compensation Stock Options Activity) (Details)	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Vornado stock options
Shares
Options outstanding at beginning of period (in shares) | shares	158,101
Expired (in shares) | shares	(18,684)
Options outstanding at end of period (in shares) | shares	139,417
Option exercisable at end of period (in shares) | shares	139,417
Weighted- Average Exercise Price
Options outstanding at beginning of period (in dollars per share) | $ / shares	$ 65.52
Expired (in dollars per share) | $ / shares	66.18
Options outstanding at end of period (in dollars per share) | $ / shares	65.44
Options exercisable at end of period (in dollars per share) | $ / shares	$ 65.44
Weighted- Average Remaining Contractual Term
Options outstanding	3 years 5 months 4 days
Options exercisable	3 years 5 months 4 days
Performance AO LTIP Units
Shares
Options outstanding at beginning of period (in shares) | shares	14,368,750
Forfeited (in shares) | shares	(49,500)
Options outstanding at end of period (in shares) | shares	14,319,250
Option exercisable at end of period (in shares) | shares	0
Weighted- Average Exercise Price
Options outstanding at beginning of period (in dollars per share) | $ / shares	$ 16.87
Forfeited (in dollars per share) | $ / shares	0
Options outstanding at end of period (in dollars per share) | $ / shares	16.87
Options exercisable at end of period (in dollars per share) | $ / shares	$ 0
Weighted- Average Remaining Contractual Term
Options outstanding	8 years 6 months
AO LTIP Units
Shares
Options outstanding at beginning of period (in shares) | shares	541,814
Expired (in shares) | shares	(7,749)
Exercised (in shares) | shares	(4,229)
Options outstanding at end of period (in shares) | shares	529,836
Option exercisable at end of period (in shares) | shares	529,836
Weighted- Average Exercise Price
Options outstanding at beginning of period (in dollars per share) | $ / shares	$ 59.99
Expired (in dollars per share) | $ / shares	58.22
Exercised (in dollars per share) | $ / shares	36.72
Options outstanding at end of period (in dollars per share) | $ / shares	60.20
Options exercisable at end of period (in dollars per share) | $ / shares	$ 60.20
Weighted- Average Remaining Contractual Term
Options outstanding	4 years 3 months 3 days
Options exercisable	4 years 3 months 3 days