Earnings Per Share - Computation of Basic and Diluted Earnings Per Common Share (Detail) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Earnings Per Share [Abstract]
Weighted-average common shares outstanding (in shares)	54.0	54.4	54.1	54.5
Effect of dilutive securities (in shares)	1.3	0.4	1.1	0.4
Diluted (in shares)	55.3	54.8	55.2	54.9