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EMPLOYEE BENEFITS (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Netherlands Plan Change
Jun. 30, 2014
Netherlands Plan Change
Dec. 31, 2013
Netherlands Plan Change
Defined Benefit Plans and Other Postretirement Benefit Plans              
Service cost $ 2,252 $ 2,567 $ 4,503 $ 5,294      
Interest cost 2,637 2,119 5,274 4,469      
Expected return on assets (2,060) (1,769) (4,119) (3,538)      
Amortization of transition asset (35) (36) (71) (71)      
Amortization of unrecognized losses 195 746 390 1,862      
Amortization of prior service credits (1,814) (1,852) (3,627) (3,705)      
Net periodic benefit costs 1,175 1,775 2,350 4,311      
Defined Benefit Plan, Fair Value of Plan Assets             5,000
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax             9,000
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax         9,000    
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax         (2,000)    
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments         $ (3,000)    
Effective Date of plan change           Jan. 01, 2014