Quarterly report pursuant to Section 13 or 15(d)

EMPLOYEE BENEFIT PLANS (Details)

v3.19.1
EMPLOYEE BENEFIT PLANS (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Defined Benefit Pension Plan [Member]    
Components of Net Periodic Benefit Costs:    
Service Cost $ 1,529 $ 1,721
Interest Cost 1,545 1,415
Expected Return on Plan Assets (2,382) (2,391)
Prior Service Cost Amortization 4 50
Net Gain (Loss) Amortization 965 918
Net Periodic Benefit Cost (Income) $ 1,661 $ 1,713
Discount Rate (in percent) 4.43% 3.71%
Long-Term Rate of Return on Assets (in percent) 7.25% 7.25%
Supplemental Executive Retirement Plan [Member]    
Components of Net Periodic Benefit Costs:    
Interest Cost $ 87 $ 57
Net Gain (Loss) Amortization 190 406
Net Periodic Benefit Cost (Income) $ 277 $ 463
Discount Rate (in percent) 4.23% 3.53%