Area of a real estate property.

No definition available.

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainLossOnSaleOfInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_InvestmentHoldingsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Cash received for the sale of real estate that is not part of an investing activity during the current period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of excess fair value of investments over it's cost.

+ References

No definition available.

+ Details

Name:	vno_InvestmentOwnedUnrecognizedUnrealizedAppreciationValue
Namespace Prefix:	vno_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents Joint Venture Partnership Percent.

+ References

No definition available.

+ Details

Name:	vno_JointVenturePartnershipPercent
Namespace Prefix:	vno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of investments made by the fund during the year

+ References

No definition available.

+ Details

Name:	vno_NumberOfInvestmentsMadeByFund
Namespace Prefix:	vno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the real estate assets related to the fund

+ References

No definition available.

+ Details

Name:	vno_RealEstateFundNondepreciableRealEstate
Namespace Prefix:	vno_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of investments sold

+ References

No definition available.

+ Details

Name:	vno_SaleOfInvestmentsPercentage
Namespace Prefix:	vno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Unfunded Commitments Of the Fund

+ References

No definition available.

+ Details

Name:	vno_UnfundedCommitmentsOfFund
Namespace Prefix:	vno_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Vornado Capital Partners Real Estate Fund (the "Fund") (Narratives) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended				0 Months Ended		9 Months Ended	0 Months Ended
	Oct. 31, 2014	Sep. 30, 2014	Dec. 31, 2013	Jun. 26, 2014 One Park Avenue [Member]	Jun. 26, 2014 One Park Avenue [Member] Joint Venture [Member]	Jun. 26, 2014 Vornado Realty Trust Excluding Real Estate Fund [Member] One Park Avenue [Member]	Sep. 30, 2014 Real Estate Fund [Member] Investments	Aug. 21, 2014 Real Estate Fund [Member] Retail Georgetown Park [Member] sqft	Aug. 21, 2014 Real Estate Fund [Member] Retail Georgetown Park [Member] Joint Venture [Member]	Jun. 26, 2014 Real Estate Fund [Member] One Park Avenue [Member]	Sep. 30, 2014 Vornado Realty Trust [Member]
Investment Holdings [Line Items]
Sale Of Investments, Percentage										64.70%
Joint Venture Partnership Percent					45.00%	55.00%			50.00%
Aggregate fair value of Real Estate Fund investments (in US Dollars)		$ 495,392	$ 667,710	$ 560,000			$ 495,392
Net realized gain on sale of investment	443,000							51,124		75,529
Square Footage Of Real Estate Property								305,000
Sale price of real estate								272,500
Number Of Investments Made By Fund							7
Excess of fair value over cost (in US Dollars)							158,317
Unfunded Commitments Of Fund							$ 144,123				$ 36,031