COMMITMENTS AND CONTINGENCIES Schedule of customer loan swaps (Details) $ in Thousands		Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Derivative [Line Items]
Derivative, Number of Instruments Held		2
Interest rate swaps
Derivative [Line Items]
Notional amount of derivative		$ 43,000	$ 43,000
Derivative, fair value	[1]	$ (7,958)	$ (8,372)
Interest rate swaps | Federal home loan bank 30-day
Derivative [Line Items]
Derivative, Number of Instruments Held		23	0
Notional amount of derivative		$ 121,608	$ 0
Derivative, fair value		$ 1,877	$ 0
Commercial and Industrial Sector [Member] | Interest rate swaps
Derivative [Line Items]
Derivative, Number of Instruments Held		54	50
Notional amount of derivative		$ 278,899	$ 266,263
Derivative, fair value		$ 2,806	$ 1,945
Loans [Member] | Interest rate swaps
Derivative [Line Items]
Derivative, Number of Instruments Held		108	100
Notional amount of derivative		$ 557,798	$ 532,526
Derivative, fair value		$ 0	$ 0
Other Liabilities [Member] | Interest rate swaps | Federal home loan bank 30-day
Derivative [Line Items]
Derivative, Number of Instruments Held		31	50
Notional amount of derivative		$ 157,291	$ 266,263
Derivative, fair value		$ (4,683)	$ (1,945)

[1] Presented within accrued interest and other liabilities on the consolidated statements of condition.