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Investment In Joint Venture Aggregate Equity Committed By Partner

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Investment in Joint Venture, Number Of Partners In Joint Venture

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Investment In Joint Venture, Ownership Percentage

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Represents the amount of equity investment in variable interest entities (VIEs) in which the entity is not a primary beneficiary.

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Area of a real estate property.

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Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.

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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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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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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.

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Investments in Unconsolidated Joint Ventures - Information about Joint Ventures (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)	Jun. 30, 2022 USD ($) ft² partner unit	Dec. 31, 2021 USD ($)
General information on each joint venture
Company's investments in unconsolidated joint ventures \| $		$ 3,074,200	$ 2,997,934
Net equity investment in VIEs in which the entity is not primary beneficiary \| $		$ 88,000	85,600
Unaudited Approximate Square Feet (sqft)		27,211,821
One Madison Avenue
General information on each joint venture
Ownership percentage deconsolidated	50.50%
Investment fair value adjustment \| $	$ 187,500
One Madison Avenue
General information on each joint venture
Investment in joint venture aggregate equity committed by partner \| $	$ 492,200		$ 259,300
Investment in joint venture aggregate maximum ownership percentage	49.50%		25.00%
Investment in joint venture, number of partners \| partner		2
Investment in joint venture, partners' ownership percentage		39.20%
450 Park Avenue \| Third-Party
General information on each joint venture
Ownership Interest		49.90%
Investment in joint venture, partners' ownership percentage		25.00%
21 East 66th Street \| Three Retail and Two Residential Units
General information on each joint venture
Ownership Interest		32.28%
Number of stores \| unit		3
Number of residential units \| unit		1
21 East 66th Street \| Three Residential Units
General information on each joint venture
Ownership Interest		16.14%
Number of residential units \| unit		2
Joint venture
General information on each joint venture
Company's investments in unconsolidated joint ventures \| $		$ 3,074,200
Equity method investments with negative book value \| $		$ 108,500
Joint venture \| 100 Park Avenue
General information on each joint venture
Ownership Interest		49.90%
Economic Interest		49.90%
Unaudited Approximate Square Feet (sqft)		834,000
Joint venture \| 717 Fifth Avenue
General information on each joint venture
Ownership Interest		10.92%
Economic Interest		10.92%
Unaudited Approximate Square Feet (sqft)		119,500
Joint venture \| 800 Third Avenue
General information on each joint venture
Ownership Interest		60.52%
Economic Interest		60.52%
Unaudited Approximate Square Feet (sqft)		526,000
Joint venture \| 919 Third Avenue
General information on each joint venture
Ownership Interest		51.00%
Economic Interest		51.00%
Unaudited Approximate Square Feet (sqft)		1,454,000
Joint venture \| 11 West 34th Street
General information on each joint venture
Ownership Interest		30.00%
Economic Interest		30.00%
Unaudited Approximate Square Feet (sqft)		17,150
Joint venture \| 280 Park Avenue
General information on each joint venture
Ownership Interest		50.00%
Economic Interest		50.00%
Unaudited Approximate Square Feet (sqft)		1,219,158
Joint venture \| 1552 Broadway
General information on each joint venture
Ownership Interest		50.00%
Economic Interest		50.00%
Unaudited Approximate Square Feet (sqft)		57,718
Joint venture \| 10 East 53rd Street
General information on each joint venture
Ownership Interest		55.00%
Economic Interest		55.00%
Unaudited Approximate Square Feet (sqft)		354,300
Joint venture \| 21 East 66th Street
General information on each joint venture
Ownership Interest		32.28%
Economic Interest		32.28%
Unaudited Approximate Square Feet (sqft)		13,069
Joint venture \| 650 Fifth Avenue
General information on each joint venture
Ownership Interest		50.00%
Economic Interest		50.00%
Unaudited Approximate Square Feet (sqft)		69,214
Joint venture \| 121 Greene Street
General information on each joint venture
Ownership Interest		50.00%
Economic Interest		50.00%
Unaudited Approximate Square Feet (sqft)		7,131
Joint venture \| 11 Madison Avenue
General information on each joint venture
Ownership Interest		60.00%
Economic Interest		60.00%
Unaudited Approximate Square Feet (sqft)		2,314,000
Joint venture \| One Vanderbilt Avenue
General information on each joint venture
Ownership Interest		71.01%
Economic Interest		71.01%
Unaudited Approximate Square Feet (sqft)		1,657,198
Joint venture \| Worldwide Plaza
General information on each joint venture
Ownership Interest		24.95%
Economic Interest		24.95%
Unaudited Approximate Square Feet (sqft)		2,048,725
Joint venture \| 1515 Broadway
General information on each joint venture
Ownership Interest		56.87%
Economic Interest		56.87%
Unaudited Approximate Square Feet (sqft)		1,750,000
Joint venture \| 2 Herald Square
General information on each joint venture
Ownership Interest		51.00%
Economic Interest		51.00%
Unaudited Approximate Square Feet (sqft)		369,000
Joint venture \| 115 Spring Street
General information on each joint venture
Ownership Interest		51.00%
Economic Interest		51.00%
Unaudited Approximate Square Feet (sqft)		5,218
Joint venture \| 15 Beekman
General information on each joint venture
Ownership Interest		20.00%
Economic Interest		20.00%
Unaudited Approximate Square Feet (sqft)		221,884
Joint venture \| 85 Fifth Avenue
General information on each joint venture
Ownership Interest		36.27%
Economic Interest		36.27%
Unaudited Approximate Square Feet (sqft)		12,946
Joint venture \| One Madison Avenue
General information on each joint venture
Ownership Interest		25.50%
Economic Interest		25.50%
Unaudited Approximate Square Feet (sqft)		1,048,700
Joint venture \| 220 East 42nd Street
General information on each joint venture
Ownership Interest		51.00%
Economic Interest		51.00%
Unaudited Approximate Square Feet (sqft)		1,135,000
Joint venture \| 450 Park Avenue
General information on each joint venture
Ownership Interest		50.10%
Economic Interest		25.10%
Unaudited Approximate Square Feet (sqft)		337,000
Investment in joint venture, ownership percentage		25.10%