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EMPLOYEE BENEFIT PLANS Assumptions (Details)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Pension Plan [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase 3.75% 3.75% 4.00%
Discount rate 4.00% 3.50%  
Average salary increases 3.80% 3.80%  
Supplemental Employee Retirement Plan [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase 3.75% 3.75% 4.00%
Discount rate 4.00% 3.50%  
Average salary increases 3.80% 3.80%