v3.26.1
Schedule of Net Periodic Pension and Postretirement Cost (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 28, 2026
Jun. 29, 2025
Jun. 28, 2026
Jun. 29, 2025
Defined Benefit Plan Disclosure        
Service cost $ 143 $ 96 $ 286 $ 309
Interest cost 1,358 1,165 2,716 2,873
Expected return on plan assets (975) (665) (1,950) (1,981)
Net actuarial loss (gain) (43) 41 (43) 41
Total net periodic pension cost 483 637 1,009 1,242
Foreign Pension Plans, Defined Benefit        
Defined Benefit Plan Disclosure        
Service cost 296 150 598 289
Interest cost 345 301 697 595
Expected return on plan assets (54) (25) (109) (50)
Net actuarial loss (gain) 0 0 0 0
Total net periodic pension cost 586 426 1,187 834
Postretirement Benefit Plans        
Defined Benefit Plan Disclosure        
Service cost 7 8 15 18
Interest cost 66 80 134 153
Net actuarial loss (gain) (114) 87 (114) 87
Amortization of prior service credit (1) (2) (2) (4)
Special termination benefits 0 0 0 684
Total net periodic pension cost $ (42) $ 173 $ 32 $ 938