SEGMENT DISCLOSURE - Reconciliation of Segment Operating Income to Net Income Attributable to Company (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest and other income	$ 21,366	$ 10,503
Asset management and other fees to related parties	(9,030)	(9,793)
Interest expense	(9,413)	(11,415)
General and administrative	(6,844)	(6,772)
Transaction costs	(143)	0
Depreciation and amortization	(20,112)	(21,406)
Loss on early extinguishment of debt	0	(281)
Impairment of real estate	0	0
Gain on sale of real estate	0	0
INCOME (LOSS) BEFORE PROVISION (BENEFIT) FOR INCOME TAXES	2,141	(15,737)
(Provision) benefit for income taxes	(2,992)	722
NET (LOSS) INCOME	(851)	(15,015)
Net loss (income) attributable to noncontrolling interests	1	(1)
NET (LOSS) INCOME ATTRIBUTABLE TO THE COMPANY	(850)	(15,016)
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment net operating income	47,061	32,641
Expense reimbursements to related parties—corporate	(1,921)	(3,491)
Corporate And Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest and other income	1	104
Asset management and other fees to related parties	(9,030)	(9,793)
Interest expense	(9,005)	(10,547)
General and administrative	(4,581)	(4,212)
Corporate, Non-Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Expense reimbursements to related parties—corporate	$ (2,050)	$ (2,243)