v3.26.1
Pensions and Other Post-employment Benefits (Details) - USD ($)
 3 Months Ended
Apr. 03, 2026
Mar. 28, 2025
Components of net periodic benefit (income) cost    
Contributions by employer $ 0 $ 0
Pension Benefits    
Components of net periodic benefit (income) cost    
Service cost 292,000 286,000
Interest cost 1,841,000 1,910,000
Expected return on plan assets (2,374,000) (2,504,000)
Amortization of prior service cost (benefit) (22,000) (21,000)
Amortization of net loss (gain) 258,000 89,000
Total net benefit (income) cost (5,000) (240,000)
Other Benefits    
Components of net periodic benefit (income) cost    
Service cost 0 11,000
Interest cost 31,000 58,000
Expected return on plan assets 0 0
Amortization of prior service cost (benefit) 0 0
Amortization of net loss (gain) (104,000) (87,000)
Total net benefit (income) cost $ (73,000) $ (18,000)