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RETIREMENT PLANS (Schedule of Benefit Plan Funded Status) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]    
Benefit obligation at beginning of year $ 30,338 $ 31,547
Service cost 696 860
Interest cost 1,213 1,096
Actuarial loss (gain) 3,603 (1,944)
Benefits paid (1,316) (1,221)
Projected benefit obligation at end of year 34,534 30,338
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]    
Fair value of plan assets at beginning of year 39,680 42,439
Actual return on plan assets 5,928 (1,538)
Employer contribution 0 0
Benefits paid (1,316) (1,221)
Fair value of plan assets at end of year 44,292 39,680
Funded Status, included in other assets 9,758 9,342
Amounts recognized in accumulated other comprehensive income: Total net actuarial loss 9,147 9,773
Amounts recognized in accumulated other comprehensive income: Prior service cost 0 0
Total included in accumulated other comprehensive loss (pretax) $ 9,147 $ 9,773