XML 66 R55.htm IDEA: XBRL DOCUMENT v3.23.3
Pension and Other Postretirement Benefits - Pension Benefits - Net Periodic Pension (Income)/Cost (Details) - Pension Plan - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 25, 2022
Sep. 30, 2023
Sep. 25, 2022
Pension Benefits        
Service cost $ 1,417 $ 2,882 $ 4,252 $ 8,645
Interest cost 16,494 10,121 49,482 30,365
Expected return on plan assets (19,122) (13,807) (57,367) (41,422)
Amortization of actuarial loss 1,553 4,909 4,660 14,728
Amortization of prior service credit (486) (486) (1,459) (1,459)
Net periodic pension (income)/cost or postretirement benefit cost (144) 3,619 (432) 10,857
Qualified Plans        
Pension Benefits        
Service cost 1,417 2,882 4,252 8,645
Interest cost 14,198 8,837 42,595 26,512
Expected return on plan assets (19,122) (13,807) (57,367) (41,422)
Amortization of actuarial loss 663 3,266 1,991 9,799
Amortization of prior service credit (486) (486) (1,459) (1,459)
Net periodic pension (income)/cost or postretirement benefit cost (3,330) 692 (9,988) 2,075
Non- Qualified Plans        
Pension Benefits        
Service cost 0 0 0 0
Interest cost 2,296 1,284 6,887 3,853
Expected return on plan assets 0 0 0 0
Amortization of actuarial loss 890 1,643 2,669 4,929
Amortization of prior service credit 0 0 0 0
Net periodic pension (income)/cost or postretirement benefit cost $ 3,186 $ 2,927 $ 9,556 $ 8,782