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Pension Plans and Postretirement Benefits
 6 Months Ended
Jun. 30, 2023
Retirement Benefits [Abstract]  
Pension Plans and Postretirement Benefits PENSION PLANS AND POSTRETIREMENT BENEFITSWe record the service cost component of net periodic benefit cost within Operating income on our condensed consolidated statements of income. For the three months ended June 30, 2023 and 2022, these amounts were $2.0 million and $3.2 million, respectively. For the six months ended June 30, 2023 and 2022, these amounts were $3.9 million and $6.2 million, respectively. All other components of net periodic benefit cost are included in Other – net within the condensed consolidated statements of income. For the three months ended June 30, 2023 and 2022, these amounts were $(2.4) million and $(12.6)
million, respectively. For the six months ended June 30, 2023 and 2022, these amounts were $(4.9) million and $(25.2) million, respectively. Components of net periodic benefit cost included in net income were as follows:
 Pension BenefitsOther Benefits
Three Months Ended
June 30,		Six Months Ended
June 30,		Three Months Ended
June 30,		Six Months Ended
June 30,
 20232022202320222023202220232022
 (In thousands)
Service cost$1,879 $2,988 $3,758 $5,905 $84 $166 $169 $331 
Interest cost11,949 7,858 23,859 15,679 534 347 1,069 694 
Expected return on plan assets
(15,109)(20,888)(30,219)(41,756)(635)(737)(1,269)(1,475)
Amortization of prior service cost 820 807 1,640 1,614 10 6 20 13 
Net periodic benefit income$(461)$(9,235)$(962)$(18,558)$(7)$(218)$(11)$(437)