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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Table)
3 Months Ended
Mar. 31, 2020
Pension Plans Defined Benefit [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule Of Defined Benefit Plans Disclosures The components of net periodic pension cost for the three months ended March 31, 2020 and 2019 were as follows:
Three Months Ended
March 31,
(In thousands)20202019
Service cost$6,611  $5,826  
Interest cost6,058  7,372  
Expected return on plan assets(16,896) (14,884) 
Amortization of prior service cost(71) (71) 
Amortization of unrecognized actuarial loss5,749  2,592  
Net periodic pension cost$1,451  $835