Leases - Lease Costs, Term, and Discount Rate (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 02, 2022	Apr. 03, 2021	Apr. 02, 2022	Apr. 03, 2021	Jul. 03, 2021
Leases [Abstract]
Finance lease cost	$ 0.0	$ 0.1	$ 0.0	$ 0.4
Operating lease cost	3.3	3.4	10.0	10.6
Variable lease cost	0.3	0.5	1.1	1.5
Short-term lease cost	0.2	0.6	0.4	1.9
Sublease income	(0.8)	(0.7)	(2.4)	(2.1)
Total lease cost	$ 3.0	$ 3.9	$ 9.1	$ 12.3
Weighted average remaining lease term (in years):
Operating leases	7 years 1 month 6 days		7 years 1 month 6 days		7 years 6 months
Weighted average discount rate (in percentages):
Operating leases	3.00%		3.00%		3.50%