Real Estate (Narrative) (Details)		6 Months Ended
May 05, 2021 USD ($) ft² ShoppingCenter $ / ft²	Jun. 30, 2021 USD ($)
Real Estate Properties [Line Items]
Contributed capital to joint venture		$ 2,481,000
Investment in Unconsolidated Joint Venture [Member]
Real Estate Properties [Line Items]
Area of commercial building \| ft²	258,000
Area of commercial space leased percentage	100.00%
Term of lease	20 years 10 months
Number of redevelopment of existing shopping centers \| ShoppingCenter	2
Initial term of construction loan	3 years
Percentage of interest in joint venture	10.00%
Development cost sold to Joint Venture		$ 8,000,000.0
Initial annual net rent amount to be paid upon completion of building	$ 5,400,000
Annual escalator percentage to be paid on each anniversary of rent commencement	2.50%
Operating costs, property taxes and amortization of tenant improvements	$ 8,100,000
Annual net rent amount to be paid upon completion of building	$ 13,500,000
Free rent period	10 months
Tenant credit against either annual rent or any other tenant payment obligations including tenant improvement costs, in excess of tenant improvement allowance	$ 6,800,000
Amortized over period	240 months
Investment in Unconsolidated Joint Venture [Member] \| Between the 10th and 12th Lease Years [Member]
Real Estate Properties [Line Items]
Additional per rentable square foot tenant improvement allowance to be contributed \| $ / ft²	9.38
Investment in Unconsolidated Joint Venture [Member] \| Maximum [Member]
Real Estate Properties [Line Items]
Construction financing maximum amount	$ 105,000,000
Joint venture contribution to be made per rentable square foot toward cost of tenant improvements \| $ / ft²	155
Investment in Unconsolidated Joint Venture [Member] \| LIBOR Rate [Member]
Real Estate Properties [Line Items]
Construction loan initial interest	LIBOR plus 200 basis
Basis spread on borrowings variable rate	200.00%
Investment in Unconsolidated Joint Venture [Member] \| Office Space [Member]
Real Estate Properties [Line Items]
Area of commercial building \| ft²	240,000
Investment in Unconsolidated Joint Venture [Member] \| Street-Level Retail [Member]
Real Estate Properties [Line Items]
Area of commercial building \| ft²	18,000

Additional per rentable square foot tenant improvement allowance to be contributed.

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- Definition

Amortized over period.

+ References

No definition available.

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- Definition

Annual escalator percentage to be paid on each anniversary of rent commencement.

+ References

No definition available.

+ Details

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- Definition

Annual net rent amount to be paid upon completion of building.

+ References

No definition available.

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- Definition

Area of commercial building.

+ References

No definition available.

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- Definition

Area of commercial space leased percentage.

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No definition available.

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- Definition

Construction financing maximum amount.

+ References

No definition available.

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- Definition

Development cost sold to Joint Venture.

+ References

No definition available.

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- Definition

Free rent period.

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No definition available.

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- Definition

Initial annual net rent amount to be paid upon completion of building.

+ References

No definition available.

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- Definition

Initial term of construction loan.

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No definition available.

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- Definition

Joint Venture contribution to be made per rentable square foot toward cost of tenant improvements.

+ References

No definition available.

+ Details

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- Definition

Number of redevelopment of existing shopping centers.

+ References

No definition available.

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- Definition

Percentage of interest in joint venture.

+ References

No definition available.

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- Definition

Tenant credit.

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No definition available.

+ Details

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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

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

Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
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- Definition

Net cash outflow for the allowance granted to lessee and/or direct costs incurred by lessor used to prepare the leased premises for tenant's occupancy; for costs that are essential to originating the lease and would not otherwise have been incurred without the lease agreement, including but not limited to, evaluating the lessee's credit condition, guarantees, and collateral and costs incurred in negotiating, processing, and executing the lease agreement; and for any commission(s) incurred.

+ References

No definition available.

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- Definition

The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

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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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