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Schedule of Net Periodic Pension and Postretirement Cost (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 28, 2025
Sep. 29, 2024
Sep. 28, 2025
Sep. 29, 2024
Defined Benefit Plan Disclosure        
Service cost $ 153 $ 216 $ 462 $ 665
Interest cost 1,426 1,590 4,299 4,883
Expected return on plan assets (989) (1,204) (2,970) (3,737)
Net actuarial loss (gain) 0 (2,262) 41 (2,151)
Settlement loss (gain) (800) 0 (800) 0
Settlement expense 0 394 0 394
Total net periodic pension cost (210) (1,266) 1,032 54
Foreign Pension Plans, Defined Benefit        
Defined Benefit Plan Disclosure        
Service cost 149 119 437 360
Interest cost 300 256 892 766
Expected return on plan assets (24) (23) (71) (58)
Net actuarial loss (gain) 0 0 0 (242)
Settlement loss (gain) 0 0 0 0
Settlement expense 0 0 (0) (24)
Total net periodic pension cost 425 352 1,258 802
Postretirement Benefit Plans        
Defined Benefit Plan Disclosure        
Service cost 9 9 27 28
Interest cost 76 72 229 217
Net actuarial loss (gain) 0 0 87 (94)
Amortization of prior service credit (2) (2) (7) (7)
Special termination benefits 0 0 684 462
Total net periodic pension cost $ 83 $ 79 $ 1,020 $ 606