FAIR VALUES FAIR VALUES - Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Corporate bonds and notes
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance of recurring Level 3 assets at January 1	$ 0	$ 0
Derivative instruments entered into	0	0
Included in earnings - other non-interest income	0	0
Included in other comprehensive income	0	0
Transfers into Level 3	248	0
Balance of recurring Level 3 assets at December 31	248	0
Derivative liabilities
Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance of recurring Level 3 assets at January 1	(18)	0
Derivative instruments entered into	(1)	(18)
Included in earnings - other non-interest income	(29)	0
Included in other comprehensive income	0	0
Transfers into Level 3	0	0
Balance of recurring Level 3 assets at December 31	$ (48)	$ (18)