Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands		12 Months Ended
	Jan. 01, 2021 Segment	Dec. 31, 2022 USD ($) Segment	Dec. 31, 2021 USD ($) Segment	Dec. 31, 2020 USD ($) Segment
Summary Of Significant Accounting Policies [Line Items]
Capitalized costs		$ 4,000	$ 3,100	$ 3,000
Impairment charges related to consolidated real estate investment		2,536	7,270	5,200
Interest paid		71,300	70,200	76,000
Capitalized interest paid		1,100	600	900
Accounts receivable, not probable of being collected amount		1,500	3,000
Allowance for straight line rent		1,700	1,600
Straight line rent receivable, net		31,900	29,800
Annual Asset Management Fee Earned		500,000
Stock-based compensation cost recognized by the company		$ 6,800	$ 13,000	$ 8,000
Number of reportable segments | Segment	1	1	1	2
Transferred And Redeemed Loan Investments				the Company transferred and redeemed its loan investments (preferred equity interests) in BRE DDR Retail Holdings III and BRE DDR Retail Holdings IV (the “BRE DDR Joint Ventures”) in exchange for the acquisition of certain of the underlying assets of two joint ventures
Quantitative threshold of revenues, profit or loss and assets for identifying reportable segments		The Company’s chief operating decision maker may review operational and financial data on a property basis and does not differentiate among properties on a geographical basis for purposes of allocating resources or capital. The Company evaluates individual property performance primarily based on net operating income before depreciation, amortization and certain nonrecurring items. Each consolidated shopping center is considered a separate operating segment; however, each shopping center, on a stand-alone basis, represents less than 10% of revenues, profit or loss, and assets of the combined reported operating segment and meets the majority of the aggregations criteria under the applicable standard.
Retail Value Inc [Member]
Summary Of Significant Accounting Policies [Line Items]
Property Management Fees Description		RVI property management fees were paid monthly generally based on the average gross revenue collected during the three months immediately preceding the most recent December 31 or June 30. The Company received a supplemental fee from RVI for the period July 1, 2020 to June 30, 2021 to negate the adverse impact of the COVID-19 pandemic on revenue collection and the resulting reduction to the property management fee payable to the Company.
Disposition fees equal to percentage of gross sale price		1.00%
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating lease term		1 month
Minimum [Member] | Geographic Concentration Risk [Member] | Revenues [Member] | Shopping Center [Member] | Stand-Alone Shopping Center [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenues		10.00%
Minimum [Member] | Tenant [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating lease term		1 month
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating lease term		30 years
Maximum [Member] | Tenant [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating lease term		30 years
Adoption of Topic 606 [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenue recognized percentage upon lease execution		50.00%
Revenue recognized percentage upon tenant rent commencement		50.00%
Real Estate Investment [Member]
Summary Of Significant Accounting Policies [Line Items]
Impairment charges related to consolidated real estate investment		$ 2,500	$ 7,300	$ 5,200