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Net Periodic Pension Benefit
 3 Months Ended
Apr. 03, 2021
Retirement Benefits [Abstract]  
Net Periodic Pension Benefit Net Periodic Pension Benefit
The following table shows the components of our net periodic pension benefit:
Three Months Ended
April 3, 2021March 28, 2020
(In thousands)
Service cost (1)
$— $— 
Interest cost on projected benefit obligation505 723 
Expected return on plan assets(1,140)(1,210)
Amortization of unrecognized gain321 263 
Net periodic pension benefit$(314)$(224)
(1) Service cost is not a part of our net periodic pension benefit as our pension plan is frozen for all participants.