Length of Renewal Term

No definition available.

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- Definition

Notes Payable, Net

+ References

No definition available.

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- Definition

Number of Renewal Options

+ References

No definition available.

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- References

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- Definition

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

+ References

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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- Definition

The aggregate amount of the participation liability at the end of the accounting period.

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- Definition

The cash inflow from a borrowing supported by a written promise to pay an obligation.

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Mortgages Payable - Additional Information (Detail) $ in Thousands			3 Months Ended
	Feb. 14, 2020 USD ($)	Dec. 12, 2018 USD ($)	Mar. 31, 2020 USD ($) option	Dec. 31, 2019 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Mortgages payable, net of deferred debt issuance costs			$ 1,117,879	$ 970,961
Mortgages
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Mortgages payable, net of deferred debt issuance costs			$ 1,117,879	970,961
731 Lexington Avenue \| Retail Site \| Mortgages
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest rate (in percentage)			2.78%
Maturity date			Aug. 01, 2020
Debt instrument, description of variable rate basis			LIBOR
Number of renewal options \| option			2
731 Lexington Avenue \| Retail Site \| Mortgages \| LIBOR
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Basis spread over LIBOR			1.40%
Length of renewal term			1 year
731 Lexington Avenue \| Office Space \| Mortgages
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest rate (in percentage)			1.61%
Maturity date			Jun. 01, 2024
Debt instrument, description of variable rate basis			LIBOR
731 Lexington Avenue \| Office Space \| Mortgages \| LIBOR
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Basis spread over LIBOR			0.90%
Rego Park II
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest rate (in percentage)			2.29%
Loan participation balance	$ 50,000
Proceeds from notes payable	$ 145,000
Rego Park II \| Retail Site \| Mortgages
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Mortgages payable, net of deferred debt issuance costs		$ 252,544
Interest rate (in percentage)			2.29%
Maturity date			Dec. 01, 2025
Loan participation balance				195,708
Mortgages payable, net of loan participation			$ 202,544	56,836
Debt instrument, description of variable rate basis			LIBOR
Rego Park II \| Retail Site \| Mortgages \| LIBOR
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Basis spread over LIBOR		1.35%	1.35%
Participation Agreement \| Rego Park II \| Retail Site \| Mortgages
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Loan participation balance			$ 50,000	$ 195,708