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EMPLOYEE BENEFITS - Defined Contribution Plans (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]        
Profit sharing plan expense   $ 121,000 $ 175,000 $ 173,000
Defined contribution plans, expense   11,000 15,000 12,000
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Tax   (2,043) (2,545) $ (1,444)
Executive Death Benefit Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Unrecognized (Gains)/Losses in AOCE   $ (2,000) $ (1,000)  
Netherlands Plan Change        
Defined Benefit Plan Disclosure [Line Items]        
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax $ 9,000      
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Tax 2,000      
Defined Benefit Plan, Recognized Net Loss Due to Settlements and Curtailments $ 3,000      
Minimum [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Profit sharing contribution percentage   8.00%    
Maximum [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Profit sharing contribution percentage   18.00%