COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) ClassAction	Dec. 31, 2014 USD ($)
Off-balance Sheet Risks, Disclosure Information [Line Items]
Face value disclosure off-balance sheet risks face amount liability		$ 748,932	$ 757,743
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability, lower range		0
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability, upper range		$ 1,000
Number of class actions in which the Bank is involved | ClassAction		2
Legal settlement, amount	$ 2,800
Commitments to Extend Credit [Member]
Off-balance Sheet Risks, Disclosure Information [Line Items]
Face value disclosure off-balance sheet risks face amount liability		$ 730,652	733,827
Standby Letters of Credit [Member]
Off-balance Sheet Risks, Disclosure Information [Line Items]
Face value disclosure off-balance sheet risks face amount liability		$ 18,280	$ 23,916