Restructuring and Related Charges (Reversals) - Activity of Restructuring and Related Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 27, 2025	Dec. 28, 2024	Dec. 27, 2025	Dec. 28, 2024
Summary of Restructuring Activity and Related Charges
Balance as of beginning of period	$ 5.9	$ 6.3	$ 2.5	$ 11.1
Charges (reversals)	(0.4)	0.7	7.9	10.4
Payments and other adjustments	(3.3)	(5.5)	(8.2)	(20.0)
Balance as of end of period	$ 2.2	$ 1.5	$ 2.2	$ 1.5