REAL ESTATE - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Real Estate [Line Items]
Prepaid expenses and other assets	$ 9,277	$ 9,136
TOTAL ASSETS	2,987,881	3,017,927
Accounts payable and accrued expenses	(65,992)	(64,531)
Security deposits payable	(8,699)	(7,855)
Other liabilities and deferred credits	(79,577)	(86,215)
Liabilities assumed	(1,802,356)	$ (1,807,804)
Bel-Spring 520 | Office Building
Real Estate [Line Items]
Land	13,744
Buildings	27,793
Land improvements	713
Furniture, fixtures, and equipment	1,833
Total real estate	44,083
Lease intangibles	2,036
Prepaid expenses and other assets	10
TOTAL ASSETS	46,129
Accounts payable and accrued expenses	(14)
Security deposits payable	(189)
Other liabilities and deferred credits	(641)
Liabilities assumed	$ (844)