Approximate rental term range for all outstanding leases to tenants in retail centers and office buildings.

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In the event the tenant does not exercise its purchase option, the period over which the tenant's debt service portion of its rent must be sufficient to fully amortize the loan on the property

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No definition available.

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Number of fires.

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Lease with purchase option to be exercised by lessee.

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No definition available.

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The cash inflow from the sale of land held for use in case the purchase option is exercised by lessee.

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No definition available.

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The amount to be amortized over the remainder of the lease term if the purchase option is not exercised.

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No definition available.

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Triple-net rent, annual amount

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No definition available.

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Area of land held.

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

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

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Amount of difference between the carrying amount and the sales price of real estate properties sold as part of discontinued operations.

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No definition available.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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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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No definition available.

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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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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Commitments and Contingencies (Litigation and contingencies) (Details) ft² in Thousands, $ in Thousands	1 Months Ended			12 Months Ended
	Oct. 31, 2021 USD ($)	Mar. 31, 2016 USD ($)	Feb. 28, 2014 fire	Dec. 31, 2020 USD ($) ft²	Dec. 31, 2019 USD ($)	Dec. 31, 2001 a
Commitments And Contingencies Disclosure
Mortgages payable, carrying value				$ 1,156,170	$ 970,961
Standby letters of credit, outstanding				960
Paramus, NJ \| IKEA \| Tenant Occupant
Commitments And Contingencies Disclosure
Area of land \| a						30.3
Mortgages payable, carrying value				$ 68,000
Debt instrument, interest rate, stated percentage				4.72%
Maturity date				Oct. 04, 2021
Triple-net rent, annual amount				$ 700
Paramus, NJ \| IKEA \| Forecast \| Tenant Occupant
Commitments And Contingencies Disclosure
Property purchase option exercisable by lessee	$ 75,000
Purchase option exercised, net cash proceeds from sale of land	7,000
Gain (loss) on disposition of real estate, discontinued operations	$ 60,000
Lease term range as Lessor	20 years
Purchase option not exercised amount included in triple net rent over remainder of lease	$ 68,000
Loan amortization period	20 years
Rego Park I \| Sears
Commitments And Contingencies Disclosure
Area of land \| ft²				195
Number of fires \| fire			2
Minimum \| Rego Park I \| Sears
Commitments And Contingencies Disclosure
Loss contingency, damages sought, value				$ 4,000
Estimated Future Damages \| Rego Park I \| Sears
Commitments And Contingencies Disclosure
Loss contingency, damages sought, value		$ 650
Estimated Future Damages \| Minimum \| Rego Park I \| Sears
Commitments And Contingencies Disclosure
Loss contingency, damages sought, value				25,000
Estimated Future Damages \| Maximum \| Rego Park I \| Sears
Commitments And Contingencies Disclosure
Loss contingency, estimate of possible loss				$ 650