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Pensions and Other Postretirement Benefits (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 27, 2025
Sep. 28, 2024
Sep. 27, 2025
Sep. 28, 2024
Defined Benefit Pension Plans [Member] | U.S. Plans [Member]        
Components of net periodic pension cost [Abstract]        
Net service cost $ 0 $ 0 $ 0 $ 0
Interest cost 380 381 1,140 1,144
Expected return on plan assets 0 0 0 0
Amortization of prior service cost 2 16 4 49
Amortization of losses (gains) 0 (108) 0 (325)
Curtailment and settlement losses 0 0 0 0
Net periodic benefit cost 382 289 1,144 868
Defined Benefit Pension Plans [Member] | Non-U.S. Plans [Member]        
Components of net periodic pension cost [Abstract]        
Net service cost 776 783 2,270 2,349
Interest cost 1,623 1,688 4,693 5,038
Expected return on plan assets (566) (586) (1,666) (1,764)
Amortization of prior service cost 37 57 107 171
Amortization of losses (gains) 262 463 762 1,373
Curtailment and settlement losses 24 102 71 308
Net periodic benefit cost 2,156 2,507 6,237 7,475
Other Postretirement Benefits [Member] | U.S. Plans [Member]        
Components of net periodic pension cost [Abstract]        
Net service cost 4 6 14 16
Interest cost 51 53 152 158
Amortization of losses (gains) (52) (60) (156) (180)
Net periodic benefit cost 3 (1) 10 (6)
Other Postretirement Benefits [Member] | Non-U.S. Plans [Member]        
Components of net periodic pension cost [Abstract]        
Net service cost 61 61 176 181
Interest cost 62 62 178 184
Amortization of losses (gains) 15 21 44 62
Net periodic benefit cost $ 138 $ 144 $ 398 $ 427