LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES - EASY ADVANCES (Details) - Tax Refund Solutions - Easy Advances - USD ($) $ in Thousands	2 Months Ended		3 Months Ended		9 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Period Easy Advance tax credit product offered	2 months	2 months
Easy Advances originated					$ 430,210	$ 328,523
Net Charge (Credit) to the Provision for Easy Advances			$ (1,036)	$ (840)	$ 11,360	$ 7,041
Provision to total Easy Advances originated					2.64%	2.14%
Easy Advances net charged offs			$ (1,036)	$ (840)	$ 11,360	$ 7,041
Percentage of Easy Advances net charge-offs to Total Easy Advances Originated					2.64%	2.14%