GOODWILL AND INTANGIBLE ASSETS - Carrying Value of Goodwill (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Beginning balance	$ 85,199,000	$ 29,468,000
Goodwill acquired	0	55,731,000
Accumulated impairment loss	0	0
Ending balance	85,199,000	85,199,000
Origination
Goodwill [Roll Forward]
Beginning balance	11,836,000	11,836,000
Goodwill acquired	0	0
Accumulated impairment loss	0	0
Ending balance	11,836,000	11,836,000
Servicing
Goodwill [Roll Forward]
Beginning balance	12,540,000	12,540,000
Goodwill acquired	0	0
Accumulated impairment loss	0	0
Ending balance	12,540,000	12,540,000
MSR Related Investments
Goodwill [Roll Forward]
Beginning balance	5,092,000	5,092,000
Goodwill acquired	0	0
Accumulated impairment loss	0	0
Ending balance	5,092,000	5,092,000
Mortgage Loans Receivable
Goodwill [Roll Forward]
Beginning balance	55,731,000	0
Goodwill acquired	0	55,731,000
Accumulated impairment loss	0	0
Ending balance	$ 55,731,000	$ 55,731,000