PENSION PLANS (Schedule of Changes in Projected Benefit Obligation and Accumulated Benefit Obligation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of the year	$ 49,836	$ 38,916
Service costs	1,352	1,526	$ 1,795
Interest costs	1,394	1,509	1,430
Curtailment gain	(1,699)	0	(1,607)
Actuarial (gains) losses	(3,354)	8,753
Benefits paid	(705)	(483)
Foreign currency exchange rate changes	(7,225)	(385)
Projected benefit obligation at end of the year	39,599	49,836	$ 38,916
Accumulated benefit obligation at end of the year	$ 35,470	$ 46,092