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RETIREMENT PLANS (Assumptions Used To Determine The Benefit Obligation and Net Periodic Benefit) (Details)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Postemployment Benefits [Abstract]      
Assumptions Used Calculating Benefit Obligation: Discount rate 3.55% 4.05% 4.35%
Assumptions Used Calculating Benefit Obligation: Rate of compensation increase 3.50% 3.50% 3.50%
Assumptions Used Calculating Net Periodic Benefit Cost: Discount rate 4.05% 4.35% 3.90%
Assumptions Used Calculating Net Periodic Benefit Cost: Expected long-term rate of return on plan assets 6.75% 6.75% 6.75%
Assumptions Used Calculating Net Periodic Benefit Cost: Rate of compensation increase 3.50% 3.50% 3.75%