Investment in Unconsolidated Ventures - Income Statement Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues:
Rental and other revenue	$ 23,778	$ 23,255	$ 47,076	$ 46,194
Total revenues	23,862	23,318	47,265	46,257
Expenses:
Real estate operating expenses	10,846	10,548	21,425	20,982
Interest expense	5,500	5,513	11,023	10,996
Depreciation	6,466	7,543	12,901	15,551
Total expenses	26,625	27,452	53,314	55,432
Total revenues less total expenses	(2,763)	(4,134)	(6,049)	(9,175)
BRT's equity in earnings and equity in earnings from sale of unconsolidated joint venture properties	(2,345)	11,202	(5,516)	7,104
Unconsolidated Joint Ventures
Revenues:
Rental and other revenue	11,294	11,476	21,918	23,608
Total revenues	11,294	11,476	21,918	23,608
Expenses:
Real estate operating expenses	5,438	5,137	10,884	10,812
Interest expense	2,832	2,390	5,610	4,845
Depreciation	2,905	2,558	5,798	5,265
Total expenses	11,175	10,085	22,292	20,922
Total revenues less total expenses	119	1,391	(374)	2,686
Other equity earnings	3	3	21	116
Gain on insurance recoveries	0	0	0	65
Gain on sale of real estate	0	38,418	0	38,418
Loss on extinguishment of debt	0	561	0	561
Net income (loss)	122	39,251	(353)	40,724
BRT's equity in earnings and equity in earnings from sale of unconsolidated joint venture properties	$ 389	$ 15,208	$ 617	$ 16,023