SEGMENT REPORTING - Operating Activity Within Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
OPERATING INCOME	$ 29,399	$ 31,139	$ 31,492	$ 29,716	$ 27,073	$ 31,003	$ 28,316	$ 28,342	$ 121,747	$ 114,734	$ 99,869
Total segments’ profit									277,207	270,215	246,054
Total Office
Segment Reporting Information [Line Items]
Property revenue									207,856	203,391	186,366
Property expense									(61,339)	(57,478)	(50,233)
OPERATING INCOME									146,517	145,913	136,133
Total Retail
Segment Reporting Information [Line Items]
Property revenue									104,767	100,912	94,662
Property expense									(31,440)	(30,306)	(27,983)
OPERATING INCOME									73,327	70,606	66,679
Total Multifamily
Segment Reporting Information [Line Items]
Property revenue									61,830	58,139	52,315
Property expense									(28,025)	(26,256)	(23,211)
OPERATING INCOME									33,805	31,883	29,104
Total Mixed-Use
Segment Reporting Information [Line Items]
Property revenue									66,711	60,206	42,485
Property expense									(43,153)	(38,393)	(28,347)
OPERATING INCOME									$ 23,558	$ 21,813	$ 14,138