Business and Organization (Details)			3 Months Ended	6 Months Ended
	Jul. 07, 2022 USD ($)	Mar. 02, 2022 USD ($) property $ / shares	Jun. 30, 2022 USD ($) property shares	Jun. 30, 2022 USD ($) property shares
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Number of properties | property			17	17
OP units outstanding | shares			49,000	49,000
Transaction costs			$ 30,457,000	$ 34,192,000
Discontinued Operations [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Transaction costs				34,200,000
Future employee severance costs				$ 23,600,000
Discontinued Operations [Member] | Subsequent Event [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Proceeds from sale of grocery-anchored shopping centers	$ 879,000,000
Series B Preferred Stock [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Preferred stock outstanding percentage		7.25%
Series C Preferred Stock [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Preferred stock outstanding percentage		6.50%
Asset Purchase Agreement [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Number of properties | property		33
Proceeds from sale of grocery-anchored shopping centers		$ 840,000,000.0
Transactions [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Distribution to shareholders, per share in cash | $ / shares		$ 29.00
Additional Asset Purchase [Member] | Asset Purchase Agreement [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Proceeds from sale of grocery-anchored shopping centers		$ 80,500,000
Remaining Assets [Member] | Asset Purchase Agreement [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Proceeds from sale of grocery-anchored shopping centers		$ 291,300,000
Cedar Realty Trust Partnership L.P [Member]
Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Line Items]
Company's interest in Operating Partnership				99.60%
Limited partners' interest in Operating Partnership				0.40%