v3.24.1.u1
Pension Plans and Postretirement Benefits (Tables)
 3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Components of Net Periodic Benefit Cost Components of net periodic benefit cost included in net income were as follows:
 Pension BenefitsOther Benefits
Three Months Ended
March 31,		Three Months Ended
March 31,
 2024202320242023
 (In thousands)
Service cost$1,997 $1,879 $97 $85 
Interest cost11,630 11,910 505 535 
Expected return on plan assets
(15,499)(15,110)(487)(634)
Amortization of prior service cost 820 820 11 10 
Net periodic benefit income$(1,052)$(501)$126 $(4)