Area of a real estate property.

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ 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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- 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
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-Name Accounting Standards Codification
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-Section 50
-Paragraph 3
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- Definition

Amount of the contractual principal due at the origination of the mortgage loan (face amount).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
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-Name Accounting Standards Codification
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-Section S99
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-Subparagraph (SX 210.5-04.(c) Schedule IV)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

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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

Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

+ 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(a)(16))
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Debt Instrument Maturity Date (String)

+ References

No definition available.

+ Details

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Namespace Prefix:	vno_
Data Type:	invest:dateStringItemType
Balance Type:	na
Period Type:	duration

- Definition

The term of the extension available, in years

+ References

No definition available.

+ Details

Name:	vno_LengthOfExtensionAvailable
Namespace Prefix:	vno_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The total number of term extensions available to the borrower

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Details

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- Details

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- Details

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- Details

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Investments in Partially Owned Entities (One Park, NY Mezzanine Loan) (Details) ft² in Thousands, $ in Thousands	Nov. 09, 2016	Mar. 17, 2016 USD ($) Extensions	Mar. 07, 2016 USD ($) ft²	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Schedule Of Equity Method Investments
Principal amount of mortgage loans				$ 9,278,263	$ 9,513,713
One Park Avenue \| Joint Venture \| Office
Schedule Of Equity Method Investments
Equity method ownership percentage			55.00%
Square Footage Of Real Estate Property \| ft²			949
Principal amount of mortgage loans			$ 300,000
Debt Instrument Maturity Date (String)			March 2021
Interest Rate, End of Period (in percentage)				2.40%
One Park Avenue \| Joint Venture \| Office \| LIBOR
Schedule Of Equity Method Investments
Description of variable rate basis			LIBOR
Spread Over LIBOR (in percentage)			1.75%
One Park Avenue \| Joint Venture \| Office \| Previous First Mortgages
Schedule Of Equity Method Investments
Principal amount of mortgage loans			$ 250,000
Debt Instrument Maturity Date (String)			March 2016
Interest Rate, End of Period (in percentage)			4.995%
Mezzanine Loan - New York \| Joint Venture
Schedule Of Equity Method Investments
Equity method ownership percentage		33.30%
Principal amount of mortgage loans		$ 150,000
Number Of Extensions Available \| Extensions		2
Length Of Extension Available		3 months
Debt Instrument Maturity Date (String)	May 2017	November 2016
Interest Rate, End of Period (in percentage)				10.08%
Subordinated Debt				$ 350,000
Mezzanine Loan - New York \| Joint Venture \| LIBOR
Schedule Of Equity Method Investments
Description of variable rate basis	LIBOR	LIBOR
Spread Over LIBOR (in percentage)	9.42%	8.88%