GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Roll Forward]
Balance at beginning of year	$ 221,526	$ 201,083
Acquisitions	10,280	20,443
Balance at end of year	$ 231,806	$ 221,526