v3.26.1
Retirement Benefits
3 Months Ended
Mar. 27, 2026
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Retirement Benefits Retirement Benefits
The components of net periodic benefit cost for retirement benefit plans were as follows (in thousands):
 Three Months Ended
 March 27,
2026
March 28,
2025
Pension Benefits
Service cost
$1,166 $1,253 
Interest cost
2,648 2,143 
Expected return on assets
(3,275)(2,903)
Amortization and other
(78)164 
Net periodic benefit cost
$461 $657 
Postretirement Medical
Service cost
$75 $75 
Interest cost
225 200 
Net periodic benefit cost
$300 $275