Stock-based Compensation (Stock-based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 30,172	$ 43,201	$ 29,249
LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	14,044	22,179	21,086
Performance AO LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	12,774	11,426	94
LTPP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	2,519	7,189	5,145
OPP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	835	1,992	1,906
Vornado stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	0	162	296
Vornado restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	0	159	292
AO LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 0	$ 94	$ 430