Area of a real estate property.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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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.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
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- Definition

Amount of income (loss) from consolidated real estate investments attributed to noncontrolling interest.

+ References

No definition available.

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- Definition

The amount of cash paid for the origination of mortgages that are held for sale.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Paragraph 25
-Subparagraph (g)
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- Definition

The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

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- Definition

The cash inflow from the sale of real estate held-for-investment and real estate joint ventures.

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

The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Section S99
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- Definition

The book value of investments in real estate joint ventures including direct and indirect investments.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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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

Value of new stock classified as temporary equity issued during the period.

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No definition available.

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- Definition

Equity Method Investment, Effective Ownership Percentage

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No definition available.

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- Definition

Equity Method Investment, Effective Ownership Transferred Percentage

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No definition available.

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- Definition

Gain (Loss) on Transfer Of Interest In Properties To Real Estate Investments, Joint Ventures

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No definition available.

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- Definition

Payments for Transaction Costs for Joint Venture

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No definition available.

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- Definition

Proceeds from Redemption of Preferred Equity

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No definition available.

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- Definition

Tax Gain (Loss) from Real Estate and Real Estate Joint Ventures

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No definition available.

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Investments in Partially Owned Entities (Fifth Avenue and Times Square JV) (Details) ft² in Thousands, $ in Thousands			12 Months Ended
	May 23, 2019 USD ($)	Apr. 18, 2019 USD ($) ft²	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	May 24, 2019
Schedule of Equity Method Investments [Line Items]
Real estate held-for-sale			$ 408,918	$ 99,627
Net gain on transfer to Fifth Avenue and Times Square JV			2,571,099	0	$ 0
Proceeds from redemption of preferred equity			$ 500,000	$ 0	$ 0
Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage			51.50%
Payments to acquire noncontrolling interest in joint venture		$ 23,000
Payments for transaction costs for joint venture		53,000
Real estate held-for-sale		5,556,000
Net gain on transfer to Fifth Avenue and Times Square JV			$ 2,571,000
Tax gain from real estate joint venture		735,000
Joint Venture \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Aggregate of preferred equity interests		$ 1,828,000
Temporary equity, value	$ 500,000
Debt instrument, interest rate, stated percentage		4.25%
Investors \| Joint Venture \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage		48.50%
Equity method investment, effective ownership percentage		47.20%
Vornado Realty Trust \| Joint Venture \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage		51.50%
Equity method investment, effective ownership percentage		51.00%
Proceeds from real estate joint ventures		$ 1,179,000
Net gain from real estate investment partnership, attributable to noncontrolling interest			$ 11,945
Vornado Realty Trust \| Investors \| Joint Venture \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Equity method investment, effective ownership transferred percentage		45.40%
Retail \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Square footage of real estate property (in sqft) \| ft²		489
Office Space \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Square footage of real estate property (in sqft) \| ft²		327
Increase in Percentage After Fifth Anniversary \| Joint Venture \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Debt instrument, interest rate, stated percentage		4.75%
666 Fifth Avenue (Retail Condo) \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Payments for mortgage loans held-for-sale		$ 390,000
Payments for transaction costs for joint venture		17,000
655 Fifth Avenue \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Payments for mortgage loans held-for-sale		140,000
640 Fifth Avenue \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Debt instrument, interest rate, stated percentage						3.07%
Proceeds from mortgage loan	500,000	$ 500,000
Proceeds from redemption of preferred equity	$ 500,000
Long-term debt, term (years)	5 years					4 years
LIBOR \| 640 Fifth Avenue \| Fifth Avenue and Times Square JV
Schedule of Equity Method Investments [Line Items]
Spread Over LIBOR (in percentage)	1.01%