DERIVATIVES (Restated) (Consumer Program Derivative) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) Y	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) Y	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) Y
DERIVATIVES
Fair value of derivative asset	$ 10,627		$ 10,627		$ 0
Consumer Program derivative	1,758	$ (238)	13,201	$ (184)
Consumer program derivative gain	$ 600		$ 11,100
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]	Consumer Program derivative	Consumer Program derivative	Consumer Program derivative	Consumer Program derivative
Consumer program derivative loss		$ (300)		$ (300)
Derivative, Loss, Statement of Income or Comprehensive Income [Extensible Enumeration]	Consumer Program derivative	Consumer Program derivative	Consumer Program derivative	Consumer Program derivative
Gain on derivative related to credit support and lost interest	$ 1,200	$ 100	$ 2,100	$ 100
Remaining cumulative charge-offs | Low
DERIVATIVES
Measurement input	2,960		2,960
Remaining cumulative charge-offs | High
DERIVATIVES
Measurement input	16,243		16,243		1,170
Remaining cumulative promotional prepayments | Low
DERIVATIVES
Measurement input	36,037		36,037		3,223
Remaining cumulative promotional prepayments | High
DERIVATIVES
Measurement input	65,860		65,860		5,890
Remaining cumulative promotional prepayments | Weighted Average
DERIVATIVES
Measurement input	44,271		44,271		3,667
Average life (years) | Weighted Average
DERIVATIVES
Measurement input | Y	1.3		1.3		2.4
Discount rate | Low
DERIVATIVES
Measurement input	0.0507		0.0507		0.0287
Discount rate | High
DERIVATIVES
Measurement input	0.1508		0.1508		0.1288
Discount rate | Weighted Average
DERIVATIVES
Measurement input	0.1508		0.1508		0.0600
Consumer program derivative
DERIVATIVES
Fair value of derivative asset	$ 10,600		$ 10,600
Fair value of derivative liability					$ 500
Underlying expected cash flows of derivatives	$ 13,000		$ 13,000		$ 600