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Organization (Details)			1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 12, 2021 USD ($) $ / shares	Aug. 05, 2021 $ / shares	Nov. 02, 2021 USD ($)	Sep. 30, 2021 USD ($) ft² joint_venture property $ / shares	Sep. 30, 2020 USD ($) ft² property joint_venture	Sep. 30, 2021 USD ($) ft² joint_venture property $ / shares	Sep. 30, 2020 USD ($) ft² property joint_venture	Aug. 06, 2021 $ / shares	Dec. 31, 2020 USD ($) $ / shares
Entity Information [Line Items]
Number of joint ventures | joint_venture				1	1	1	1
Direct listing costs				$ 1,704,000	$ 0	$ 1,704,000	$ 0
Reverse stock split ratio		0.1
Common stock, par value (in dollars per share) | $ / shares		$ 0.01		$ 0.001		$ 0.001		$ 0.001	$ 0.001
Deferred rental payments				$ 4,331,000		$ 4,331,000
Proceeds from rents received						$ 4,234,000
Deferred rental payments receivable									$ 5,346,000
Subsequent Event
Entity Information [Line Items]
Direct listing costs			$ 16,600,000
Tender offer, value of shares	$ 100,000,000
Subsequent Event | Maximum
Entity Information [Line Items]
Common stock price per share (in dollars per share) | $ / shares	$ 28.00
Subsequent Event | Minimum
Entity Information [Line Items]
Common stock price per share (in dollars per share) | $ / shares	$ 25.00
Unconsolidated Retail Properties at 100%
Entity Information [Line Items]
Number of managed retail properties | property						8	10
Gross leasable area (square feet) | ft²				1,994,000	2,470,000	1,994,000	2,470,000
Wholly-Owned Retail Properties
Entity Information [Line Items]
Number of retail properties | property				55	55	55	55
Gross leasable area (square feet) | ft²				8,561,000	8,329,000	8,561,000	8,329,000

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