EMPLOYEE SAVINGS AND BENEFIT PLANS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Deferred Compensation Plans
Beginning of period balance	$ 11,017	$ 10,459	$ 8,377
Employee compensation deferrals	534	420	369
Employee compensation payments	(1,464)	(734)	(297)
Increase (decrease) in plan fair value	50	872	2,010
End of period balance	10,137	11,017	10,459
Company's contribution to the 401K Plan
401(K) savings plan expense	$ 900	$ 800	$ 900