v3.26.3
Schedule of Net Periodic Pension and Postretirement Cost (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 27, 2026
Sep. 28, 2025
Sep. 27, 2026
Sep. 28, 2025
Defined Benefit Plan Disclosure        
Service cost $ 141 $ 153 $ 427 $ 462
Interest cost 1,358 1,426 4,074 4,299
Expected return on plan assets (982) (989) (2,932) (2,970)
Net actuarial loss (gain) 0 0 (43) 41
Settlement loss (gain) (71) (800) (71) (800)
Settlement expense 0 0 0 0
Total net periodic pension cost 446 (210) 1,455 1,032
Foreign Pension Plans, Defined Benefit        
Defined Benefit Plan Disclosure        
Service cost 296 149 897 437
Interest cost 345 300 1,046 892
Expected return on plan assets (54) (24) (163) (71)
Net actuarial loss (gain) 0 0 0 0
Settlement loss (gain) 0 0 0 0
Settlement expense 0 0 0 0
Total net periodic pension cost 586 425 1,780 1,258
Postretirement Benefit Plans        
Defined Benefit Plan Disclosure        
Service cost 7 9 22 27
Interest cost 67 76 200 229
Net actuarial loss (gain) 0 0 (114) 87
Amortization of prior service credit (1) (2) (4) (7)
Special termination benefits 0 0 0 684
Total net periodic pension cost $ 73 $ 83 $ 105 $ 1,020