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Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Net Income Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended 6 Months Ended
Jul. 02, 2022
Apr. 02, 2022
Jul. 03, 2021
Apr. 03, 2021
Jul. 02, 2022
Jul. 03, 2021
Net income per share:            
Net income $ 18.1 $ 46.6 $ 50.2 $ 53.4 $ 64.7 $ 103.6
Basic net income per share:            
Weighted-average shares outstanding - basic (in shares) 53,900   55,000   54,700 55,100
Net income per basic share (in dollars per share) $ 0.34   $ 0.91   $ 1.18 $ 1.88
Diluted net income per share:            
Weighted-average shares outstanding - basic (in shares) 53,900   55,000   54,700 55,100
Diluted share equivalent: stock options, RSUs and PSUs (in shares) 1,400   2,400   1,700 2,500
Weighted-average shares outstanding - diluted (in shares) 55,300   57,400   56,400 57,600
Net income per diluted share (in dollars per share) $ 0.33   $ 0.88   $ 1.15 $ 1.80