GOODWILL AND INTANGIBLE ASSETS - Carrying Value of Goodwill (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Beginning balance	$ 131,857,000	$ 85,199,000
Goodwill acquired	0	46,658,000
Goodwill impairment loss	0	0
Measurement period adjustments (Note 3)	1,975,000
Ending balance	133,832,000	131,857,000
Origination and Servicing
Goodwill [Roll Forward]
Beginning balance	29,468,000	29,468,000
Goodwill acquired	0	0
Goodwill impairment loss	0	0
Measurement period adjustments (Note 3)	0
Ending balance	29,468,000	29,468,000
Residential Transitional Lending
Goodwill [Roll Forward]
Beginning balance	55,731,000	55,731,000
Goodwill acquired	0	0
Goodwill impairment loss	0	0
Measurement period adjustments (Note 3)	0
Ending balance	55,731,000	55,731,000
Asset Management
Goodwill [Roll Forward]
Beginning balance	46,658,000	0
Goodwill acquired	0	46,658,000
Goodwill impairment loss	0	0
Measurement period adjustments (Note 3)	1,975,000
Ending balance	$ 48,633,000	$ 46,658,000