Area of a real estate property.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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- Definition

Square feet of additional zoning air rights.

+ References

No definition available.

+ Details

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Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument Maturity Date (String)

+ References

No definition available.

+ Details

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- Definition

Lease Expiration Date in Month Year format.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of partners

+ References

No definition available.

+ Details

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Namespace Prefix:	vno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Details

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- Details

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- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=vno_NewYorkSegmentMember
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- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_OfficeBuildingMember
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=vno_CrownePlazaTimeSquareHotelMember
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- Details

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- Details

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Acquisitions (Narratives) (Details) - Subsequent Event Type [Domain] - Real Estate And Accumulated Depreciation Name Of Property [Domain] ft² in Thousands	Jun. 02, 2015 USD ($) ft²	Mar. 18, 2015 USD ($) ft²	Jan. 20, 2015 USD ($) LimitedPartners	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Business Acquisition [Line Items]
Mortgages payable				$ 8,562,314,000	$ 8,263,165,000
Real Estate Fund [Member]
Business Acquisition [Line Items]
Number Of Limited Partners \| LimitedPartners			1
Center Building [Member] \| New York Segment [Member] \| Office Building [Member]
Business Acquisition [Line Items]
Square Footage Of Real Estate Property \| ft²		437
Business Acquisition Cost Of Acquired Entity		$ 142,000,000
Mortgages payable		$ 62,000,000
Interest Rate, End of Period (in percentage)		4.43%
Debt Instrument Maturity		October 2018
Crowne Plaza Time Square Hotel [Member]
Business Acquisition [Line Items]
Equity method ownership percentage			33.00%		11.00%
Crowne Plaza Time Square Hotel [Member] \| Real Estate Fund Joint Venture [Member]
Business Acquisition [Line Items]
Equity method ownership percentage			57.00%
Business Acquisition Cost Of Acquired Entity			$ 95,000,000
Mortgages payable			$ 310,000,000
Debt Instrument Maturity			December 2018
150 West 34th Street [Member] \| New York Segment [Member] \| Retail Properties [Member]
Business Acquisition [Line Items]
Square Footage Of Real Estate Property \| ft²	78
Business Acquisition Cost Of Acquired Entity	$ 355,000,000
Mortgages payable	$ 205,000,000
Lease Expiration Date	May 2019
Area Of Additional Zoning Air Rights \| ft²	226