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Pension and other postretirement benefits (Tables)
 6 Months Ended
Jun. 30, 2024
Retirement Benefits [Abstract]  
Net Benefit Cost of Pension and Postretirement Benefit Plans
The following table provides information regarding the components of the net benefit (income) expense of the pension and postretirement benefit plans for the three and six months ended June 30, 2024 and July 2, 2023:
Three Months Ended
June 30, 2024July 2, 2023June 30, 2024July 2, 2023
Pension
Other Benefits
Service cost$62 $360 $— $— 
Interest cost271 4,344 110 187 
Expected return on plan assets(128)(6,315)— — 
Net amortization and deferral164 2,156 (645)(339)
Net benefit expense (income)
$369 $545 $(535)$(152)
Six Months Ended
June 30, 2024July 2, 2023June 30, 2024July 2, 2023
Pension
Other Benefits
Service cost$663 $720 $— $— 
Interest cost2,389 8,694 219 373 
Expected return on plan assets(2,329)(12,625)— — 
Net amortization and deferral1,518 4,310 (1,290)(678)
Settlements
138,139 — — — 
Net benefit expense (income)
$140,380 $1,099 $(1,071)$(305)