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Net Periodic Pension Cost (Benefit) (Tables)
9 Months Ended
Sep. 30, 2023
Retirement Benefits [Abstract]  
Schedule of Net Periodic Pension Cost for Pension Plans
The following table shows the components of our net periodic pension cost (benefit):
Three Months EndedNine Months Ended
Pension-related itemsSeptember 30, 2023October 1, 2022September 30, 2023October 1, 2022
(In thousands)(In thousands)
Service cost (1)
$— $— $— $— 
Interest cost on projected benefit obligation1,105 606 3,314 1,818 
Expected return on plan assets(812)(1,177)(2,437)(3,531)
Amortization of unrecognized gain301 209 905 627 
Net periodic pension cost (benefit)$594 $(362)$1,782 $(1,086)
(1) Service cost is not a part of our net periodic pension benefit as our pension plan is frozen for all participants.