SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Provision for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Components of Provision for Credit Losses
Provision (benefit) for loan losses	$ (71)	$ (75)	$ (177)	$ (662)
Provision (benefit) for risk-sharing obligations	(4,769)	(4,251)	(14,161)	(14,984)
Provision (benefit) for credit losses	$ (4,840)	$ (4,326)	$ (14,338)	$ (15,646)

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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Amount of expense related to credit loss from transactions other than loan and lease transactions.

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