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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Table)
6 Months Ended
Jun. 30, 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 and six months ended June 30, 2020 and 2019 were as follows:

Three Months EndedSix Months Ended
June 30,June 30,
(In thousands)2020201920202019
Service cost$6,611  $5,825  $13,222  $11,651  
Interest cost6,058  7,371  12,116  14,743  
Expected return on plan assets(16,896) (14,882) (33,792) (29,766) 
Amortization of prior service cost(71) (70) (142) (141) 
Amortization of unrecognized actuarial loss5,750  2,592  11,499  5,184  
Net periodic pension cost$1,452  $836  $2,903  $1,671