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EMPLOYEE BENEFIT PLANS (Details) (USD $)
 3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
EMPLOYEE BENEFIT PLANS [Abstract]      
Defined Benefit Plan, Contributions by Employer $ 1,000,000    
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year   4,800,000  
Defined Benefit Plan, Service Cost 197,000   172,000
Defined Benefit Plan, Interest Cost 1,408,000   1,355,000
Defined Benefit Plan, Expected Return on Plan Assets (1,517,000)   (1,396,000)
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Recognized in Net Periodic Benefit Cost, before Tax 34,000   34,000
Defined Benefit Plan, Amortization of Gains (Losses) 758,000   1,318,000
Defined Benefit Plan, Net Periodic Benefit Cost $ 880,000   $ 1,483,000