LOANS AND LEASES AND ALLOWANCE FOR CREDIT LOSSES - Certain Loans Acquired Accretable Yield Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Fidelity Bank
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	$ 19,388	$ 27,995
Accretion	(11,032)	(13,485)
Reclassification from nonaccretable difference	7,856	4,878
Balance, end of period	16,212	19,388
Camco Financial
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	824	0
Impact of acquisition on March 1, 2014	0	143
Accretion	(1,380)	(5,597)
Reclassification from nonaccretable difference	556	6,278
Balance, end of period	$ 0	$ 824