Investment in Unconsolidated Ventures - Income Statement Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Rental and other revenue	$ 22,939	$ 11,430
Total revenues	22,939	11,434
Expenses:
Real estate operating expenses	10,434	4,753
Interest expense	5,483	2,021
Depreciation	8,008	3,606
Total expenses	27,980	14,013
Total revenues less total expenses	(5,041)	(2,579)
Gain on sale of real estate	0	6
BRT's equity in earnings and equity in earnings from sale of unconsolidated joint venture properties	(4,098)	11,508
Unconsolidated Joint Ventures
Revenues:
Rental and other revenue	12,132	25,231
Total revenues	12,132	25,231
Expenses:
Real estate operating expenses	5,675	11,169
Interest expense	2,455	6,026
Depreciation	2,707	6,636
Total expenses	10,837	23,831
Total revenues less total expenses	1,295	1,400
Other equity earnings	113	55
Gain on insurance recoveries	65	515
Gain on sale of real estate	0	23,652
Loss on extinguishment of debt	0	(30)
Net income from joint ventures	1,473	25,592
BRT's equity in earnings and equity in earnings from sale of unconsolidated joint venture properties	$ 815	$ 14,191