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

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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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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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- References

No definition available.

+ Details

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- 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: 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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: 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)(a)(2))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Balance Type:	credit
Period Type:	instant

- Definition

Net rentable area for properties owned.

+ References

No definition available.

+ Details

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

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

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

- Definition

Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Included in Spin-Off

+ References

No definition available.

+ Details

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Namespace Prefix:	vno_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Disposal Group, Including Discontinued Operation, Cash and Proceeds from Refinancing

+ References

No definition available.

+ Details

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Namespace Prefix:	vno_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Distribution Made to Joint Venture Unit Distribution

+ References

No definition available.

+ Details

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

- 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

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Dispositions (Narrative) (Details) ft² in Thousands		1 Months Ended		9 Months Ended
Dispositions (Narrative) (Details) ft² in Thousands	Jul. 17, 2017 USD ($) ft² development_asset myAptUnit myProperty	Jul. 17, 2017 USD ($) ft² development_asset myAptUnit myProperty	Jun. 20, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Dispositions
Cash and cash equivalents and restricted cash included in spin-off of JBG Smith Properties				$ 416,237,000	$ 0
LIBOR
Dispositions
Spread Over LIBOR (in percentage)	1.25%
Spin off \| Washington DC
Dispositions
Pro rata basis of distribution	1:2
Disposal group, including discontinued operation, cash and proceeds from refinancing	$ 275,000,000	$ 275,000,000
Spin off \| JBGS \| Washington DC
Dispositions
Repayment of debt	43,581,000
The Bartlett
Dispositions
Cash and cash equivalents and restricted cash included in spin-off of JBG Smith Properties	$ 412,500,000
Loans payable			$ 220,000,000
Debt term			5 years
Interest rate, end of period (in percentage)				2.90%
The Bartlett \| LIBOR
Dispositions
Spread Over LIBOR (in percentage)			1.70%
The Bartlett \| Spin off \| JBGS \| Washington DC
Dispositions
Net proceeds from debt		$ 217,000,000
Office \| Spin off \| Washington DC
Dispositions
Number of real estate properties \| myProperty	37	37
Net rentable area \| ft²	11,100	11,100
Multifamily \| Spin off \| Washington DC
Dispositions
Number of real estate properties \| myProperty	5	5
Number of units \| myAptUnit	3,133	3,133
Other investments \| Spin off \| Washington DC
Dispositions
Number of real estate properties \| myProperty	5	5
Net rentable area \| ft²	406	406
Future development assets \| Spin off \| Washington DC
Dispositions
Number of development assets \| development_asset	18	18
Square footage of real estate property \| ft²	10,400	10,400