Area of a real estate property.

No definition available.

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- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of.

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- Definition

Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

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- Definition

Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

+ References

No definition available.

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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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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

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

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- Definition

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

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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- Definition

The cash inflow from the sale of land held for investment; excludes sales of land held as inventory or productive use.

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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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Acquisitions and Dispositions [Line Items]

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No definition available.

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- Definition

Business Combination, Step Acquisition, Additional Equity Interest Acquired, Percentage

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No definition available.

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The term of the extension available, in years

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No definition available.

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- Definition

Number of Properties Sold

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No definition available.

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Number of Extensions

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- Definition

Proceeds from Sale of Land Held-for-investment, Net

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No definition available.

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Transaction Related Costs and Other

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Acquisitions and Dispositions (Narrative) (Details) ft² in Thousands, $ in Thousands					3 Months Ended	12 Months Ended
	Jan. 13, 2022 USD ($) property	Sep. 24, 2021 USD ($) property	Aug. 05, 2021 USD ($) ft²	Feb. 26, 2021 USD ($) extension	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Acquisitions and Dispositions [Line Items]
Proceeds from borrowings						$ 3,248,007	$ 1,056,315	$ 1,108,156
Real estate held-for-sale						57,142	128,215
Net gains on sale of real estate						0	$ 0	$ 2,571,099
One Park Avenue
Acquisitions and Dispositions [Line Items]
Business combination, step acquisition, equity interest in acquiree, including subsequent acquisition, percentage			100.00%
Business combination, step acquisition, additional equity interest acquired, percentage			45.00%
Business combination, step acquisition, equity interest in acquiree, fair value			$ 875,000
Payments to acquire businesses			$ 158,000
677-679, 759-771 and 828-850 Madison Avenue
Acquisitions and Dispositions [Line Items]
Number of properties sold \| property		3
Proceeds from sale of land held-for-investment		$ 100,000
Proceeds from sale of land held-for-investment, net		96,503
Impairment losses, transaction related costs and other		$ 7,880
SoHo Properties
Acquisitions and Dispositions [Line Items]
Disposal group, including discontinued operation, assets						$ 80,005
SoHo Properties \| Subsequent Event
Acquisitions and Dispositions [Line Items]
Number of properties sold \| property	2
Proceeds from sale of land held-for-investment	$ 84,500
Proceeds from sale of land held-for-investment, net	$ 81,399
SoHo Properties \| Forecast
Acquisitions and Dispositions [Line Items]
Net gains on sale of real estate					$ 850
Office Building \| One Park Avenue
Acquisitions and Dispositions [Line Items]
Square footage of real estate property (in sqft) \| ft²			944
Office Building \| Maturing in March 2023 \| One Park Avenue
Acquisitions and Dispositions [Line Items]
Debt instrument, amount			$ 525,000
Office Building \| One Park Avenue \| Maturing in March 2023
Acquisitions and Dispositions [Line Items]
Debt instrument, amount				$ 525,000
Debt instrument, interest rate, stated percentage						1.22%
Number of extensions (extension) \| extension				3
Length of extension available (years)				1 year
Proceeds from borrowings				$ 105,000
Office Building \| One Park Avenue \| Maturing in March 2023 \| LIBOR
Acquisitions and Dispositions [Line Items]
Spread Over LIBOR (in percentage)				1.11%
Office Building \| One Park Avenue \| Matures in March 2021
Acquisitions and Dispositions [Line Items]
Debt instrument, amount				$ 300,000
Office Building \| One Park Avenue \| Matures in March 2021 \| LIBOR
Acquisitions and Dispositions [Line Items]
Spread Over LIBOR (in percentage)				1.75%