Vornado Capital Partners Real Estate Fund (the "Fund") (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Details Of Income From Real Estate Funds [Abstract]
Income from Real Estate Fund	$ 16,564	$ 11,762
Less net income attributable to noncontrolling interests in consolidated subsidiaries	(11,286)	(9,597)
Income From Real Estate Fund Attributable To Parent Company	7,024	3,829
Fee And Other Income	97,225	33,278
Real Estate Funds [Member]
Details Of Income From Real Estate Funds [Abstract]
Less net income attributable to noncontrolling interests in consolidated subsidiaries	(9,540)	(7,933)
Fee And Other Income	682	703
Operating Income [Member]
Details Of Income From Real Estate Funds [Abstract]
Income from Real Estate Fund	3,048	4,918
Unrealized Gain From Mark To Market [Member]
Details Of Income From Real Estate Funds [Abstract]
Income from Real Estate Fund	$ 13,516	$ 6,844