Business Segments - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Real estate rental operations:
Revenue	$ 60,293		$ 60,004		$ 122,437	$ 118,729
Expenses	(14,797)		(14,662)		(31,753)	(31,177)
Income from real estate	45,496		45,342		90,684	87,552
Interest expense, net and amortization of deferred debt costs	(10,457)		(11,657)		(21,059)	(23,646)
Depreciation and amortization of lease costs	(12,377)		(12,637)		(24,704)	(25,385)
General and administrative	(5,665)		(4,929)		(10,433)	(9,607)
Net Income	16,997	$ 17,491	16,119	$ 12,795	34,488	28,914
Capital investment	35,046		8,598		51,914	27,516
Total assets	1,782,486		1,736,980		1,782,486	1,736,980	$ 1,746,761
Operating Segments | Shopping Centers
Real estate rental operations:
Revenue	42,038		42,006		86,137	84,451
Expenses	(8,184)		(8,371)		(18,276)	(18,447)
Income from real estate	33,854		33,635		67,861	66,004
Interest expense, net and amortization of deferred debt costs	0		0		0	0
Depreciation and amortization of lease costs	(7,086)		(7,195)		(14,227)	(14,436)
General and administrative	0		0		0	0
Net Income	26,768		26,440		53,634	51,568
Capital investment	2,427		1,459		3,959	5,608
Total assets	937,509		959,169		937,509	959,169
Operating Segments | Mixed-Use Properties
Real estate rental operations:
Revenue	18,255		17,998		36,300	34,278
Expenses	(6,613)		(6,291)		(13,477)	(12,730)
Income from real estate	11,642		11,707		22,823	21,548
Interest expense, net and amortization of deferred debt costs	0		0		0	0
Depreciation and amortization of lease costs	(5,291)		(5,442)		(10,477)	(10,949)
General and administrative	0		0		0	0
Net Income	6,351		6,265		12,346	10,599
Capital investment	32,619		7,139		47,955	21,908
Total assets	831,078		762,253		831,078	762,253
Corporate and Other
Real estate rental operations:
Revenue	0		0		0	0
Expenses	0		0		0	0
Income from real estate	0		0		0	0
Interest expense, net and amortization of deferred debt costs	(10,457)		(11,657)		(21,059)	(23,646)
Depreciation and amortization of lease costs	0		0		0	0
General and administrative	(5,665)		(4,929)		(10,433)	(9,607)
Net Income	(16,122)		(16,586)		(31,492)	(33,253)
Capital investment	0		0		0	0
Total assets	$ 13,899		$ 15,558		$ 13,899	$ 15,558