Discontinued Operations (Details) (USD $)	3 Months Ended	12 Months Ended			1 Months Ended	0 Months Ended		3 Months Ended	12 Months Ended			0 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Nov. 30, 2012 Kings Plaza Energy Joint Venture [Member]	Nov. 30, 2012 Kings Plaza Regional Shopping Center [Member]	Nov. 28, 2012 Kings Plaza Regional Shopping Center [Member]	Dec. 31, 2012 Kings Plaza Regional Shopping Center [Member]	Dec. 31, 2013 Kings Plaza Regional Shopping Center [Member]	Dec. 31, 2012 Kings Plaza Regional Shopping Center [Member]	Dec. 31, 2011 Kings Plaza Regional Shopping Center [Member]	Nov. 28, 2012 Kings Plaza Regional Shopping Center [Member] Macerich [Member]
Description of Transaction
Real Estate Property Sold Gross												$ 751,000,000
Proceeds from sale of real estate												479,000,000
Common Stock From Sale of Real Estate		0	30,000,000	0								30,000,000
Financial Statement Gain							601,976,000
Disposal Group, Deferred Gain on Disposal							2,348,000
Remaining Equity Interest Percentage Acquired					75.00%
Acquisition of the noncontrolling interest		0	7,800,000	0	7,800,000
Special long-term capital gain dividend (in dollars per share) per share						$ 122.00
Special long-term capital gain dividend			623,178,000			623,178,000
Disposal Group Income And Expenses
Total revenues									0	61,836,000	69,006,000
Total expenses									0	31,214,000	35,764,000
Operating income from discontinued operations									0	30,622,000	33,242,000
Interest and other income, net		1,527,000	177,000	1,001,000					2,252,000	45,000	1,671,000
Interest and debt expense		(44,540,000)	(45,652,000)	(43,898,000)					0	(5,343,000)	(8,698,000)
Net gain on sale of real estate	599,628,000		599,628,000					599,628,000	0	599,628,000	0
Income from discontinued operations		2,252,000	624,952,000	26,215,000					2,252,000	624,952,000	26,215,000
Fees to Vornado		$ 4,196,000	$ 4,318,000	$ 3,687,000						$ 1,368,000	$ 1,598,000