COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2015 USD ($) ClassAction	Dec. 31, 2014 USD ($)
Off-balance Sheet Risks, Disclosure Information [Line Items]
Face value disclosure off-balance sheet risks face amount liability	$ 747,236	$ 747,236	$ 757,743
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability, lower range	0	0
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability, upper range	1,000	$ 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	729,174	$ 729,174	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	$ 18,062	$ 18,062	$ 23,916