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.

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- Definition

Identification of the lender and information about a contractual promise to repay a short-term or long-term obligation, which includes borrowings under lines of credit, notes payable, commercial paper, bonds payable, debentures, and other contractual obligations for payment. This may include rationale for entering into the arrangement, significant terms of the arrangement, which may include amount, repayment terms, priority, collateral required, debt covenants, borrowing capacity, call features, participation rights, conversion provisions, sinking-fund requirements, voting rights, basis for conversion if convertible and remarketing provisions. The description may be provided for individual debt instruments, rational groupings of debt instruments, or by debt in total.

+ References

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-Name Accounting Standards Codification
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-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

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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

+ Details

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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.

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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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

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- Definition

The increase (decrease) during the reporting period in loans that are classified as working capital and are not otherwise defined in the taxonomy.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
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Balance Type:	credit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- 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).

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-Name Regulation S-X (SX)
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- Definition

The number of units in a real estate property owned as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Including the current and noncurrent portions, the carrying value of notes payable which were initially due after one year or beyond the normal operating cycle, if longer, and which are not otherwise defined in the taxonomy.

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-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

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- Definition

The cash outflow for incremental, external costs directly pertaining to an early extinguishment of debt, including legal costs and prepayment penalties, and excluding interest and repayment of debt principal.

+ References

No definition available.

+ Details

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
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- Definition

Debt Instrument Maturity Date (String)

+ References

No definition available.

+ Details

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Data Type:	invest:dateStringItemType
Balance Type:	na
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- Definition

The term of the extension available, in years

+ References

No definition available.

+ Details

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Namespace Prefix:	vno_
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Balance Type:	na
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- Definition

Amount of debt refinanced

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Number Of Apartment Buildings

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

The total number of term extensions available to the borrower

+ References

No definition available.

+ Details

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Namespace Prefix:	vno_
Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

Unsecured Debt Final Withdrawal Date

+ References

No definition available.

+ Details

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Balance Type:	na
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Debt (Narratives) (Details) ft² in Thousands							1 Months Ended		3 Months Ended	12 Months Ended
Debt (Narratives) (Details) ft² in Thousands	Dec. 21, 2015 USD ($) Extensions	Dec. 11, 2015 USD ($) ft²	Oct. 30, 2015 USD ($) Extensions	Sep. 22, 2015 USD ($)	Jul. 28, 2015 USD ($) ft²	Jun. 02, 2015 USD ($) Extensions	Apr. 30, 2015 USD ($) Properties ResidentialUnits	Jan. 31, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Debt Instrument [Line Items]
Net proceeds from borrowings										$ 4,468,872,000	$ 2,428,285,000	$ 2,262,245,000
Mortgages payable, net										9,513,713,000	8,187,843,000
Revolving credit facilities										$ 550,000,000	$ 0
770 Broadway [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										5.65%
Debt Instrument Maturity										March 2016
Mortgages payable, net										$ 353,000,000
Secured Debt [Member] \| 220 Central Park South [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										2.42%
Debt Instrument, Description of Variable Rate Basis				LIBOR
Spread Over LIBOR (in percentage)				2.00%
Debt Instrument Maturity				2020
Mortgages payable, net				$ 950,000,000
Increase in loan amount				350,000,000
Mezzanine loan financing (in US Dollars)				500,000,000
Mezzanine loan contract termination fee				$ 15,000,000
Secured Debt [Member] \| St. Regis Hotel [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										2.19%
Debt Instrument Maturity	December 2020
Mortgages payable, net	$ 450,000,000
Number Of Extensions Available \| Extensions	2
Length Of Extension Available	1 year
Secured Debt [Member] \| St. Regis Hotel [Member] \| Joint Venture [Member]
Debt Instrument [Line Items]
Equity method ownership percentage	74.30%
Secured Debt [Member] \| St. Regis Hotel [Member] \| First Three Years [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Spread Over LIBOR (in percentage)	1.80%
Secured Debt [Member] \| St. Regis Hotel [Member] \| Year Four And Five [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Spread Over LIBOR (in percentage)	1.90%
Secured Debt [Member] \| St. Regis Hotel [Member] \| Remaining Extension Periods [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Spread Over LIBOR (in percentage)	2.00%
Secured Debt [Member] \| 888 Seventh Avenue [Member] \| Office [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										1.92%
Notes And Loans Payable Refinanced Amount (in US Dollars)		$ 375,000,000
Debt Instrument, Description of Variable Rate Basis		LIBOR
Spread Over LIBOR (in percentage)		1.60%
Debt Instrument Maturity		December 2020
Net proceeds from borrowings		$ 49,000,000
Square Footage Of Real Estate Property \| ft²		882
Debt Term		5 years
Secured Debt [Member] \| 888 Seventh Avenue [Member] \| Office [Member] \| Fixed Rate [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)		3.15%
Secured Debt [Member] \| 100 West 33rd Street [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										1.92%
Notes And Loans Payable Refinanced Amount (in US Dollars)					$ 580,000,000
Debt Instrument, Description of Variable Rate Basis					LIBOR
Spread Over LIBOR (in percentage)					1.65%
Debt Instrument Maturity					July 2020
Net proceeds from borrowings					$ 242,000,000
Square Footage Of Real Estate Property \| ft²					1,100
Secured Debt [Member] \| 100 West 33rd Street [Member] \| Office [Member]
Debt Instrument [Line Items]
Square Footage Of Real Estate Property \| ft²					855
Secured Debt [Member] \| 100 West 33rd Street [Member] \| Manhattan Mall [Member]
Debt Instrument [Line Items]
Square Footage Of Real Estate Property \| ft²					256
Secured Debt [Member] \| RiverHouse Apartments [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										1.52%
Notes And Loans Payable Refinanced Amount (in US Dollars)							$ 308,000,000
Number Of Apartment Buildings \| Properties							3
Number Of Units \| ResidentialUnits							1,670
Debt Instrument, Description of Variable Rate Basis							LIBOR
Spread Over LIBOR (in percentage)							1.28%
Debt Instrument Maturity							2025
Net proceeds from borrowings							$ 43,000,000
Secured Debt [Member] \| RiverHouse Apartments [Member] \| Mortgages Maturing April 2015 [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)									5.43%
Debt Instrument Maturity									April 2015
Mortgages payable, net									$ 195,000,000
Secured Debt [Member] \| RiverHouse Apartments [Member] \| Mortgages Maturing 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis									LIBOR
Spread Over LIBOR (in percentage)									1.53%
Debt Instrument Maturity									2018
Mortgages payable, net									$ 64,000,000
Secured Debt [Member] \| 150 West 34th Street [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										2.52%
Debt Instrument, Description of Variable Rate Basis						LIBOR
Spread Over LIBOR (in percentage)						2.25%
Debt Instrument Maturity						2018
Mortgages payable, net						$ 205,000,000
Number Of Extensions Available \| Extensions						2
Length Of Extension Available						1 year
Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										3.68%
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Interest Rate, End of Period (in percentage)										1.40%
Debt Instrument, Description of Variable Rate Basis			LIBOR
Spread Over LIBOR (in percentage)			1.15%
Debt Instrument Maturity			October 2018
Number Of Extensions Available \| Extensions			2
Length Of Extension Available			1 year
Usecured term loan, maximum borrowing capacity			$ 750,000,000
Facility Fee (in percentage)			0.20%
Revolving credit facilities			$ 187,500,000
Unsecured term loan, description			The facility provides that the maximum amount available is twice the amount outstanding on April 29, 2016, limited to $750,000,000, and all draws must be made by October 2017.
Unsecured Debt Final Withdrawal Date			October 2017
Senior Unsecured Notes 4.25% [Member]
Debt Instrument [Line Items]
Redemption of senior unsecured notes								$ 500,000,000
Interest Rate, End of Period (in percentage)								4.25%
Redemption Price, Percentage of Principal Amount Redeemed								100.00%
Debt Instrument Maturity								April 1, 2015