v3.26.1
Earnings Per Share - Computations of Earnings per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 27, 2026
Jun. 28, 2025
Jun. 27, 2026
Jun. 28, 2025
Earnings Per Share [Abstract]        
Net income $ (22.5) $ 100.3 $ 1.7 $ 151.6
Basic earnings per common share $ (0.19) $ 0.83 $ 0.01 $ 1.25
Diluted earnings per common share $ (0.19) $ 0.83 $ 0.01 $ 1.24
Basic average shares outstanding 119.3 120.3 119.6 121.3
Stock-based awards 0.0 0.4 0.2 0.5
Diluted average shares outstanding 119.3 120.7 119.8 121.8
Antidilutive stock-based awards excluded from weighted- average number of shares outstanding for diluted earnings per share 3.0 2.5 2.3 1.8