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EMPLOYEE BENEFIT PLANS (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Accumulated benefit obligation $ 10,708 $ 11,556 $ 9,611
Amounts recognized in AOCI for net actuarial losses 5,700 $ 5,200  
Estimated net actuarial loss that will be amortized from accumulated other comprehensive income into net periodic pension cost $ 456    
401K, maximum employee contribution, percentage of compensation 75.00%    
401K, employer contribution, approximate percentage match 46.00% 48.00% 46.00%
Equity Securities [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Baseline allocation 60.00%    
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum 35.00%    
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum 75.00%    
Fixed Income Securities [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Baseline allocation 40.00%    
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum 25.00%    
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum 60.00%    
Minimum [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Portfolio investment time horizon 5 years    
Maximum [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Portfolio investment time horizon 15 years