Area of a real estate property.

No definition available.

Name:	us-gaap_AreaOfRealEstateProperty
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- Definition

This element represents the carrying value of a short-term real estate loan to finance building costs. The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project, usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property. Note that there are separate concepts for the current and noncurrent portions of long-term construction loans.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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Period Type:	instant

- Definition

The capitalized costs incurred (excluded from amortization), as of the date of the balance sheet, to obtain access to proved reserves and to provide facilities for extracting, treating, gathering and storing the oil and gas.

+ References

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-SubTopic 10
-Section S99
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-Subparagraph (SX 210.4-10.(c)(7)(ii))
-URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862

+ Details

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

- Definition

The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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+ Details

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

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 12
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+ Details

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Balance Type:	debit
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_RealEstateLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow from repayment of borrowings to finance the cost of construction.

+ References

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-SubTopic 10
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-Paragraph 15
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+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration

- Definition

Development Costs Expended

+ References

No definition available.

+ Details

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

- Definition

Number of Units Sold

+ References

No definition available.

+ Details

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

- Details

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

- Details

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Namespace Prefix:
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- Details

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220 Central Park South 220 CPS - Narrative (Details) ft² in Thousands, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019 USD ($) ft² unit	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) ft² unit	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) ft² unit
Real Estate [Line Items]
Net gain on sale of real estate			$ 2,571,099	$ 0
Income tax expense	$ 23,885	$ 1,943	80,542	4,964
Repayments of construction loan for 220 CPS			$ 352,211	$ 0
220 Central Park South
Real Estate [Line Items]
Square footage of real estate property (in sqft) \| ft²	397		397		397
Development costs	$ 1,400,000		$ 1,400,000		$ 1,400,000
Development costs expended	$ 1,300,000		$ 1,300,000		$ 1,300,000
Number of condominium units sold (unit) \| unit	14		37		48
Cash proceeds from the sale of real estate	$ 348,759		$ 1,039,493		$ 1,254,269
Net gain on sale of real estate	130,888		400,500
Income tax expense	21,853		71,590
Repayments of construction loan for 220 CPS	48,883
Construction loan	$ 950,000		$ 950,000		$ 950,000
Affiliated Entity \| 220 Central Park South
Real Estate [Line Items]
Number of condominium units sold (unit) \| unit			1
Cash proceeds from the sale of real estate			$ 16,099
Director \| Affiliated Entity \| 220 Central Park South
Real Estate [Line Items]
Cash proceeds from the sale of real estate			$ 23,357