GOODWILL AND INTANGIBLE ASSETS - Schedule of Carrying Value of Goodwill by Reportable Segment (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 131,857
Goodwill acquired	0
Accumulated impairment loss	0
Ending balance	131,857
Origination and Servicing
Goodwill [Roll Forward]
Beginning balance	24,376
Goodwill acquired	0
Accumulated impairment loss	0
Ending balance	24,376
Investment Portfolio
Goodwill [Roll Forward]
Beginning balance	5,092
Goodwill acquired	0
Accumulated impairment loss	0
Ending balance	5,092
Mortgage Loans Receivable
Goodwill [Roll Forward]
Beginning balance	55,731
Goodwill acquired	0
Accumulated impairment loss	0
Ending balance	55,731
Asset Management
Goodwill [Roll Forward]
Beginning balance	46,658
Goodwill acquired	0
Accumulated impairment loss	0
Ending balance	$ 46,658