SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Provision for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Components of Provision for Credit Losses
Provision (benefit) for loan losses	$ 35	$ (12)	$ (142)	$ (674)
Provision (benefit) for risk-sharing obligations	1,183	1,278	(12,978)	(13,706)
Provision (benefit) for credit losses	$ 1,218	$ 1,266	$ (13,120)	$ (14,380)