SEGMENT DISCLOSURE - Reconciliation of Segment Operating Income to Net Income Attributable to Company (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest and other income	$ 3,282	$ 3,798
Asset management and other fees to related parties	(921)	(2,259)
Interest expense	(2,170)	(2,632)
General and administrative	(1,815)	(2,622)
Depreciation and amortization	(5,004)	(5,037)
INCOME (LOSS) BEFORE PROVISION FOR INCOME TAXES	2,609	(3,297)
Provision for income taxes	(307)	(374)
NET INCOME (LOSS)	2,302	(3,671)
Net (income) loss attributable to noncontrolling interests	(5)	1
NET INCOME (LOSS) ATTRIBUTABLE TO THE COMPANY	2,297	(3,670)
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment net operating income	12,156	9,086
Expense reimbursements to related parties—corporate	(469)	(731)
Corporate and Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest and other income	0	0
Asset management and other fees to related parties	(921)	(2,259)
Interest expense	(2,063)	(2,441)
General and administrative	(1,137)	(2,041)
Corporate
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Expense reimbursements to related parties—corporate	$ (422)	$ (605)