Business Segments - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Real estate rental operations:
Revenue	$ 61,087			$ 60,256			$ 183,524	$ 178,985
Expenses	(16,073)			(15,364)			(47,826)	(46,541)
Income from real estate	45,014			44,892			135,698	132,444
Interest expense, net and amortization of deferred debt costs	(11,103)			(10,914)			(32,162)	(34,559)
Depreciation and amortization of lease costs	(12,195)			(12,467)			(36,899)	(37,852)
General and administrative	(5,555)			(4,626)			(15,988)	(14,234)
Loss on early extinguishment of debt	(648)			0			(648)	0
Net Income	15,513	$ 16,997	$ 17,491	16,885	$ 16,119	$ 12,795	50,001	45,799
Capital investment	32,595			11,308			84,509	38,788
Total assets	1,810,018			1,739,500			1,810,018	1,739,500	$ 1,746,761
Operating Segments | Shopping Centers
Real estate rental operations:
Revenue	42,478			42,485			128,615	126,935
Expenses	(8,826)			(8,640)			(27,102)	(27,087)
Income from real estate	33,652			33,845			101,513	99,848
Interest expense, net and amortization of deferred debt costs	0			0			0	0
Depreciation and amortization of lease costs	(7,073)			(7,203)			(21,300)	(21,639)
General and administrative	0			0			0	0
Loss on early extinguishment of debt	0						0
Net Income	26,579			26,642			80,213	78,209
Capital investment	2,280			1,324			6,239	6,895
Total assets	936,285			960,247			936,285	960,247
Operating Segments | Mixed-Use Properties
Real estate rental operations:
Revenue	18,609			17,771			54,909	52,050
Expenses	(7,247)			(6,724)			(20,724)	(19,454)
Income from real estate	11,362			11,047			34,185	32,596
Interest expense, net and amortization of deferred debt costs	0			0			0	0
Depreciation and amortization of lease costs	(5,122)			(5,264)			(15,599)	(16,213)
General and administrative	0			0			0	0
Loss on early extinguishment of debt	0						0
Net Income	6,240			5,783			18,586	16,383
Capital investment	30,315			9,984			78,270	31,893
Total assets	855,797			766,761			855,797	766,761
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	(11,103)			(10,914)			(32,162)	(34,559)
Depreciation and amortization of lease costs	0			0			0	0
General and administrative	(5,555)			(4,626)			(15,988)	(14,234)
Loss on early extinguishment of debt	(648)						(648)
Net Income	(17,306)			(15,540)			(48,798)	(48,793)
Capital investment	0			0			0	0
Total assets	$ 17,936			$ 12,492			$ 17,936	$ 12,492