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Defined Benefit Plans - Schedule of Expected Benefit Payments (Detail)
$ in Millions
Dec. 27, 2025
USD ($)
Pension Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2026 $ 197.5
2027 1.6
2028 1.5
2029 1.6
2030 1.5
Years 2031-2035 7.2
Postretirement Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2026 1.2
2027 1.1
2028 1.0
2029 1.0
2030 0.9
Years 2031-2035 $ 4.7