GOODWILL AND OTHER INTANGIBLE ASSETS (Schedule of Changes in Goodwill) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill, gross	$ 98,267	$ 98,267
Accumulated impairment losses	(3,570)	(3,570)
Reported goodwill	94,697	94,697
Banking
Goodwill [Line Items]
Goodwill, gross	90,793	90,793
Accumulated impairment losses	0	0
Financial Services
Goodwill [Line Items]
Goodwill, gross	7,474	7,474
Accumulated impairment losses	(3,570)	(3,570)
Banking
Goodwill [Line Items]
Reported goodwill	90,793	90,793
Financial Services
Goodwill [Line Items]
Reported goodwill	$ 3,904	$ 3,904