SEGMENT REPORTING - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 153,120	$ 178,453
Corporate and Others
Disaggregation of Revenue [Line Items]
Revenue	0	4,821
Revenue recognized when services are performed or assets are sold
Disaggregation of Revenue [Line Items]
Revenue	134,631	157,855
Revenue recognized when services are performed or assets are sold | Corporate and Others
Disaggregation of Revenue [Line Items]
Revenue		0
Revenue related to technology platforms and professional services
Disaggregation of Revenue [Line Items]
Revenue	10,450	14,043
Revenue related to technology platforms and professional services | Corporate and Others
Disaggregation of Revenue [Line Items]
Revenue		4,821
Reimbursable expenses
Disaggregation of Revenue [Line Items]
Revenue	8,039	6,555
Reimbursable expenses | Corporate and Others
Disaggregation of Revenue [Line Items]
Revenue		0
Servicer and Real Estate | Operating Segment
Disaggregation of Revenue [Line Items]
Revenue	119,661	113,636
Servicer and Real Estate | Revenue recognized when services are performed or assets are sold | Operating Segment
Disaggregation of Revenue [Line Items]
Revenue	101,716	98,610
Servicer and Real Estate | Revenue related to technology platforms and professional services | Operating Segment
Disaggregation of Revenue [Line Items]
Revenue	10,416	9,180
Servicer and Real Estate | Reimbursable expenses | Operating Segment
Disaggregation of Revenue [Line Items]
Revenue	7,529	5,846
Origination | Operating Segment
Disaggregation of Revenue [Line Items]
Revenue	33,459	59,996
Origination | Revenue recognized when services are performed or assets are sold | Operating Segment
Disaggregation of Revenue [Line Items]
Revenue	32,915	59,245
Origination | Revenue related to technology platforms and professional services | Operating Segment
Disaggregation of Revenue [Line Items]
Revenue	34	42
Origination | Reimbursable expenses | Operating Segment
Disaggregation of Revenue [Line Items]
Revenue	$ 510	$ 709