ACCUMULATED OTHER COMPREHENSIVE INCOME AMOUNT RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other Accumulated Comprehensive income reclassified from AOCI [Line Items]
Net gains on sales of investment securities	$ 409	$ 0	$ 1,503	$ 50
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	100	103	300	309
Defined Benefit Plan, Amortization of Gains (Losses)	(450)	(405)	(1,350)	(1,368)
Other Comprehensive Income, Reclassification, Amortization of Defined Benefit Plans items, Pre-tax	(350)	(302)	(1,050)	(1,059)
Total	59	(419)	453	(1,357)
Deposits [Member] | Cash Flow Hedging [Member] | Interest Expense | Interest Rate Contracts
Other Accumulated Comprehensive income reclassified from AOCI [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 0	$ (117)	$ 0	$ (348)