CREDIT SERVICES ORGANIZATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Line Items]
Credit services organization, fees receivable	$ 9,900	$ 14,500
Guarantor obligations, maximum exposure, undiscounted	48,000	65,200
Credit services organization guarantee liability	10,412	17,795	$ 19,785	$ 17,052
Amounts placed in collateral accounts	$ 13,300	$ 17,900
Minimum
Loans and Leases Receivable Disclosure [Line Items]
CSO program loan terms	3 months
Maximum
Loans and Leases Receivable Disclosure [Line Items]
CSO program loan terms	18 months