SEGMENT REPORTING - Operating Activity Within Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
OPERATING INCOME	$ 31,139	$ 31,003	$ 92,348	$ 87,661
Total segments’ profit	69,887	71,108	208,428	204,019
Office
Segment Reporting Information [Line Items]
Property revenue	51,948	53,250	155,137	153,412
Property expense	(15,361)	(14,551)	(45,075)	(41,944)
OPERATING INCOME	36,587	38,699	110,062	111,468
Retail
Segment Reporting Information [Line Items]
Property revenue	26,143	25,694	77,671	74,873
Property expense	(7,504)	(7,807)	(22,763)	(22,965)
OPERATING INCOME	18,639	17,887	54,908	51,908
Multifamily
Segment Reporting Information [Line Items]
Property revenue	15,152	14,748	45,908	42,851
Property expense	(7,262)	(6,871)	(20,579)	(19,171)
OPERATING INCOME	7,890	7,877	25,329	23,680
Mixed-use
Segment Reporting Information [Line Items]
Property revenue	17,955	17,331	49,957	45,512
Property expense	(11,184)	(10,686)	(31,828)	(28,549)
OPERATING INCOME	$ 6,771	$ 6,645	$ 18,129	$ 16,963