ORGANIZATION (Details) ft² in Millions	9 Months Ended
	Sep. 30, 2020 ft² property
Real Estate Properties [Line Items]
Area of real estate property (in sq ft) | ft²	15.1
Wholly owned properties | Shopping Center
Real Estate Properties [Line Items]
Number of real estate properties	72
Wholly owned properties | Mall
Real Estate Properties [Line Items]
Number of real estate properties	4
Wholly owned properties | Warehouse Park
Real Estate Properties [Line Items]
Number of real estate properties	2
Operating Partnership | Parent | Vornado Realty L.P.
Real Estate Properties [Line Items]
Noncontrolling interest percentage	96.10%