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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

+ Details

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

- Definition

The percentage charged for managing real estate properties.

+ References

No definition available.

+ Details

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

- Definition

The amount of revenue derived from managing real estate properties.

+ References

No definition available.

+ Details

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

- 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

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

- Definition

Equity Method Investment, Shares Sold

+ References

No definition available.

+ Details

Name:	vno_EquityMethodInvestmentSharesSold
Namespace Prefix:	vno_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of Alexanders Owned By Company

+ References

No definition available.

+ Details

Name:	vno_PercentageOfAffiliatedEntityOwnedByCompany
Namespace Prefix:	vno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage Of Affiliated Entity Owned By Related Parties

+ References

No definition available.

+ Details

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

- Definition

his element represents the percentage of the company owned by related party

+ References

No definition available.

+ Details

Name:	vno_PercentageOfCompanyOwnedByRelatedParty
Namespace Prefix:	vno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum Period Allowed For Termination Of Automatic Renewal Of Management Agreement

+ References

No definition available.

+ Details

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

- Definition

Renewal Term Of Management Agreement

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=vno_AlexandersIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=vno_InterstatePropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=vno_UrbanEdgePropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=vno_TwoTwoZeroCentralParkSouthSiteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_InvestorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=srt_DirectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended			15 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Mar. 04, 2019
Alexanders Inc
Related Party Transaction
Percentage of affiliated entity owned by company	32.40%			32.40%
Percentage of affiliated entity owned by related parties	26.10%
Interstate Properties
Related Party Transaction
Percentage of company owned by related party	7.10%			7.10%
Related party transaction annual fee percentage	4.00%
Term of management agreement	1 year
Period allowed for termination of automatic renewal of management agreement	60 days
Fee and other income from related parties (in US dollars)	$ 300	$ 453	$ 501
Urban Edge Properties
Related Party Transaction
Shares sold (shares)					5,717,184
220 Central Park South
Related Party Transaction
Cash proceeds from sale of real estate	1,605,356			$ 1,820,132
220 Central Park South \| Investor
Related Party Transaction
Cash proceeds from sale of real estate	16,099
Director \| 220 Central Park South \| Immediate Family Member of Management or Principal Owner
Related Party Transaction
Cash proceeds from sale of real estate	$ 23,357