Disposal Group, Including Discontinued Operation, Ownership Interest Disposed

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- Definition

Equity Method Investment, Ownership Percentage, Deconsolidated

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- Definition

Area of a real estate property.

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- Definition

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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- Definition

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

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- Definition

Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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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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Properties Held for Sale and Property Dispositions (Details) $ in Millions	1 Months Ended					9 Months Ended
	Jul. 31, 2021 USD ($) ft²	Jun. 30, 2021 USD ($) ft²	Mar. 31, 2021 USD ($) ft²	Feb. 28, 2021 USD ($) ft²	Jan. 31, 2021 USD ($) ft²	Sep. 30, 2021 USD ($) ft²
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²						28,035,572
220 East 42nd Street \| 220 East 42nd Street
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage deconsolidated	51.00%
Investment fair value adjustment						$ 206.8
712 Madison Avenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²					6,600
Sales Price					$ 43.0
Gain (loss)					$ (1.4)
133 Greene Street
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²				6,425
Sales Price				$ 15.8
Gain (loss)				$ 0.2
106 Spring Street
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²			5,928
Sales Price			$ 35.0
Gain (loss)			$ (2.8)
635-641 Sixth Avenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		267,000
Sales Price		$ 325.0
Gain (loss)		$ 99.4
220 East 42nd Street
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²	1,135,000
Sales Price	$ 783.5
Gain (loss)	$ 175.1
Ownership interest disposed	49.00%
Properties Sold In 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Employee-related liabilities						$ 11.7