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Earnings Per Share - Computations of Earnings per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended
Mar. 30, 2024
Apr. 01, 2023
Earnings Per Share [Abstract]    
Income from continuing operations, net of tax $ 96.4 $ 85.6
Loss from discontinued operations, net of tax 0.0 (1.0)
Net income $ 96.4 $ 84.6
Continuing operations $ 0.77 $ 0.67
Discontinued operations   (0.01)
Basic earnings per share 0.77 0.66
Continuing operations 0.76 0.67
Discontinued operations   (0.01)
Diluted earnings per share $ 0.76 $ 0.66
Basic average shares outstanding 125.9 127.8
Stock-based awards 1.1 0.7
Diluted average shares outstanding 127.0 128.5
Antidilutive stock-based awards excluded from weighted- average number of shares outstanding for diluted earnings per share 0.3 1.0