Vornado Capital Partners Real Estate Fund (the "Fund") (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Details Of Income From Real Estate Funds [Abstract]
Income from Real Estate Fund	$ 163,034vno_IncomeFromRealEstateFund	$ 102,898vno_IncomeFromRealEstateFund	$ 63,936vno_IncomeFromRealEstateFund
Less income attributable to noncontrolling interests	(96,561)	(63,952)	(32,018)
Income From Real Estate Fund Attributable To Vornado	70,306	49,471	24,604
Fee And Other Income	195,745vno_FeeAndOtherIncome	250,618vno_FeeAndOtherIncome	144,124vno_FeeAndOtherIncome
Real Estate Fund [Member]
Details Of Income From Real Estate Funds [Abstract]
Less income attributable to noncontrolling interests	(92,728)	(53,427)	(39,332)
Fee And Other Income	2,865	2,992	3,278
Net investment income [Member] \| Real Estate Fund [Member]
Details Of Income From Real Estate Funds [Abstract]
Income from Real Estate Fund	12,895	8,943	8,575
Net realized gains [Member] \| Real Estate Fund [Member]
Details Of Income From Real Estate Funds [Abstract]
Income from Real Estate Fund	76,337	8,184	0
Net unrealized gains [Member] \| Real Estate Fund [Member]
Details Of Income From Real Estate Funds [Abstract]
Income from Real Estate Fund	$ 73,802	$ 85,771	$ 55,361

Amount after tax of income (loss) attributable to nonredeemable noncontrolling shareholder, unit holder, partner, or other equity holder of a joint venture.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.19)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

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- Definition

Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations, and other real estate revenue not otherwise specified in the taxonomy.

+ References

No definition available.

+ Details

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- Definition

This element represents the income (loss) from the Real Estate Fund before allocation to noncontrolling interests

+ References

No definition available.

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- Definition

This element represents income from the real estate fund net of amounts attributable to noncontrolling interests

+ References

No definition available.

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