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, 2017	Feb. 29, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Period Easy Advance tax credit product offered	2 months	2 months
Easy Advances originated					$ 328,523	$ 123,230
Net Charge (Credit) to the Provision for Easy Advances			$ (840)	$ (89)	$ 7,041	$ 3,127
Provision to total Easy Advances originated					2.14%	2.54%
Easy Advances net charged offs			$ (840)	$ (89)	$ 7,041	$ 3,127
Percentage of Easy Advances net charge-offs to Total Easy Advances Originated					2.14%	2.54%