PENSION PLANS (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013 plan	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Number of types of retirement plans		2
Curtailment gain	$ 0	$ 1,607,000	$ 0
Defined Benefit Plan, Benefit Obligation	49,836,000	38,916,000	40,621,000
Liability included in accrued and other liabilities	600,000	500,000
Accrued pension liability	49,278,000	38,418,000
Period of assumptions for discount rate (in years)		30 years
Future Estimated Payments Plan Period		10 years
Net unamortized gain (loss) arising during period, net of tax	(6,309,000)	2,913,000	(6,778,000)
Expected net pension cost for next fiscal year	3,400,000
Cash funding for benefits paid	500,000
Expected cash funding for benefits to be paid next year	$ 500,000
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Period of salary paid to Company's French employees as termination benefits at retirement, range (in months)		1
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Period of salary paid to Company's French employees as termination benefits at retirement, range (in months)		5