Earnings Per Common Share - Schedule of Reconciliation of Numerators and Denominators for Basic and Diluted Earnings Per Common Share Computations (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Dec. 31, 2022	Jan. 01, 2022
Numerator:
Net income	$ 71.1	$ 8.4	$ 166.8	$ 13.1
Denominator:
Weighted-average common shares outstanding	154.1	152.9	153.9	146.3
Dilutive effect of potential common shares	2.0	1.4	2.0	1.4
Weighted-average dilutive common shares outstanding	156.1	154.3	155.9	147.7
Basic earnings per common share	$ 0.46	$ 0.05	$ 1.08	$ 0.09
Diluted earnings per common share	$ 0.46	$ 0.05	$ 1.07	$ 0.09