Area of a real estate property.

No definition available.

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Period Type:	instant

- 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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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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.

+ Details

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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

- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(2)
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-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

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- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

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

- Definition

Debt Instrument, Extension Term

+ References

No definition available.

+ Details

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

- Definition

The term of the extension available, in years

+ References

No definition available.

+ Details

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

- Definition

Number Of Revolving Credit Facility

+ References

No definition available.

+ Details

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

- Definition

Number of Extensions

+ References

No definition available.

+ Details

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

- Details

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- Details

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- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_RetailSiteMember
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- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=vno_MaturinginAugust2019Member
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Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_MortgagesMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=vno_MaturinginApril2024Member
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Name:	us-gaap_DebtInstrumentAxis=vno_SeniorUnsecuredNotesDue2022Member
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Name:	us-gaap_LongtermDebtTypeAxis=vno_SeniorUnsecuredNotesMember
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Name:	us-gaap_DebtInstrumentAxis=vno_MaturinginFebruary2022Member
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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
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Debt (Narrative) (Details) ft² in Thousands	Mar. 26, 2019 USD ($)	Mar. 25, 2019 USD ($) credit_facility	Mar. 01, 2019 USD ($)	Feb. 12, 2019 USD ($) ft²	Feb. 11, 2019 USD ($)	Feb. 04, 2019 USD ($) ft²	Feb. 03, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Debt Instrument
Unsecured revolving credit facilities								$ 530,000,000	$ 80,000,000
Maturing in February 2024 \| 435 Seventh Avenue \| Retail
Debt Instrument
Refinancing						$ 95,700,000
Square footage of real estate property (in sqft) \| ft²						43
Maturing in February 2024 \| 435 Seventh Avenue \| Retail \| LIBOR
Debt Instrument
Spread Over LIBOR (percent)						1.30%
Debt instrument, interest rate, stated percentage (percent)								3.78%
Maturing in August 2019 \| 435 Seventh Avenue \| Retail \| LIBOR
Debt Instrument
Spread Over LIBOR (percent)							2.25%
Maturing in August 2019 \| Mortgages \| 435 Seventh Avenue \| Retail
Debt Instrument
Repayments of debt							$ 95,700,000
Maturing in April 2024 \| 100 West 33rd Street \| Retail
Debt Instrument
Square footage of real estate property (in sqft) \| ft²				256
Maturing in April 2024 \| 100 West 33rd Street \| Retail \| LIBOR
Debt Instrument
Spread Over LIBOR (percent)				1.55%
Debt instrument, interest rate, stated percentage (percent)								4.03%
Number of extensions (extension)				2
Length of extension available				1 year
Maturing in April 2024 \| 100 West 33rd Street \| Office and Retail Property
Debt Instrument
Refinancing				$ 580,000,000
Square footage of real estate property (in sqft) \| ft²				1,100
Maturing in April 2024 \| 100 West 33rd Street \| Office
Debt Instrument
Square footage of real estate property (in sqft) \| ft²				859
Maturing in July 2020 \| 100 West 33rd Street \| Retail \| LIBOR
Debt Instrument
Spread Over LIBOR (percent)					1.65%
Maturing in July 2020 \| Mortgages \| 100 West 33rd Street \| Retail
Debt Instrument
Repayments of debt					$ 580,000,000
Senior Unsecured Notes Due 2022 \| Senior Unsecured Notes
Debt Instrument
Debt instrument, interest rate, stated percentage (percent)			5.00%
Debt instrument, redeemed			$ 400,000,000
Debt instrument, redemption price, percentage (percent)			105.51%
Charge related to prepayment and unamortized financing costs								$ 22,540,000
Maturing in February 2022 \| Line of Credit
Debt Instrument
Number of revolving credit facility (credit facility) \| credit_facility		2
Revolving Credit Facility \| Maturing in February 2022 \| Line of Credit
Debt Instrument
Unsecured revolving credit facilities		$ 1,250,000,000
Facility fee, percentage	0.20%
Revolving Credit Facility \| Maturing in February 2022 \| Line of Credit \| LIBOR
Debt Instrument
Spread Over LIBOR (percent)		1.00%
Revolving Credit Facility \| Maturing in March 2024 \| Line of Credit
Debt Instrument
Unsecured revolving credit facilities	$ 1,500,000,000
Revolving Credit Facility \| Maturing in March 2024 \| Line of Credit \| LIBOR
Debt Instrument
Spread Over LIBOR (percent)	0.90%
Revolving Credit Facility \| Matures in January 2023 \| Line of Credit
Debt Instrument
Length of extension available	6 months